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The repairing effect of poly (N-vinylpyrrolidone-co--methacrylic acid) on permed or bleached damaged hair was studied. The combing and tensile strength of permed and bleached hair before and after treatment with the copolymer solution were tested, and the effects of the mass fraction of copolymer solution and immerseing time on the combing and tensile strength for permed or bleached damaged hair were investigated. The repair mechanism of permed or bleached damaged hair was also explored. The results show that when the immersing time is 3 hours, the tensile strength of the permed hair increases with the mass fraction of the copolymer solution within 0%-0.3%, but no obvious change is observed when the mass fraction is over 0.3%. Therefore, the optimal mass fraction of the copolymer solution for repairing the permed hair is 0.3%. Similarly, the optimal mass fraction of the copolymer solution for repairing the bleached hair is 0.5%. Furthermore, the effects of immersing time on the tensile strength of the damaged hair fibers were compared between the permed and bleached hair before and after treatment with the copolymer solution. Coincidentally, the optimal immersion time for permed or bleached damaged hair is both 2 hours. The tensile strength of the permed and bleached hair soaked in 0.3% and 0.5% copolymer solutions for 2 hours increases by 15.55% and 18.12%, respectively, compared to untreated hair. Through infrared spectroscopy analysis, it is found that the amide II band in hair fibers shifted to the blue after repair, with the wave number shift of 11.12 and 11.09 cm-1, which confirm the formation of hydrogen bonds in the hair samples. Additionally, the urea hydrogen bond disruption experiment demonstrates that urea does not disrupt the hydrogen bonds in untreated hair fibers, but prevents the formation of new hydrogen bonds in damaged hair fibers. It further validates that the improvement of the tensile strength of the copolymer treated damaged hair fibers is mainly due to the formation of hydrogen bonds. After treatment with the copolymer, the dry and wet combing friction decrease by 30.73% and 28.55% for the permed hair, and decrease by 28.55% and 24.83% for the bleached hairs, respectively. The scanning electron microscope shows that the copolymer can flatten the cuticle and fill the space between the raised cuticles. [ABSTRACT FROM AUTHOR]

Objective:Meige syndrome (MS) is an adult-onset segmental dystonia for which no satisfactory remedy currently exists. Our team developed a novel surgical approach called bilateral trigeminal/facial nerve combing (BTFC). This study aimed to evaluate the outcomes of patients who underwent BFTC (Clinical Trial Registry Number: ChiCTR2000033481). Method: We assigned 22 patients with MS to undergo BTFC. The primary outcome was assessed using the movement subscale of the Burke-Fahn-Marsden Dystonia Rating Scale (BFMDRS-M) at 12 months postoperatively. The second outcome was evaluated using the Medical Outcome Study (MOS) 36-item Short Form Health Survey (SF-36), the dysfunction subscale of the Burke-Fahn-Marsden Dystonia Rating Scale (BFMDRS-D), and the sub-item scores of the BFMDRS-M. Safety outcomes included the House-Brackmann (HB) functional grading score and the visual analog scale (VAS) for facial numbness. Results: At the final follow-up at 12 months, the BFMDRS-M showed a mean improvement of 70.7% frombaseline. Mean scores of the BFMDRS-M sub-motor (including the eyes, mouth, and speech/swallowing) improved by 65.6, 81.00, and 60%, respectively. The median score of the total BFMDRS-D score was 0.70 ± 1.17 compared with 1.86 ± 2.21 at baseline. There were no serious operative complications in this population. The quality of life of the patients significantly improved (P < 0.05). Conclusion: BFTC has proven to be effective in relieving the symptoms of Meige syndrome. This novel surgical approach offers a new alternative treatment for patients who have failed to respond to medications, botulinum toxin injections, and deep brain stimulation (DBS). [ABSTRACT FROM AUTHOR]

In order to discuss the effect of different combing processing routes on polyester cotton blended fabric style, polyester and cotton were separately combed then blended to spin polyester cotton blended combed yarn according to blending ratio of 65/35. Additionally, polyester were carded, cotton were combed and blended to spin semi-combed polyester cotton blended yarn. Both the polyester cotton blended combed yarn and polyester cotton blended semi-combed yarn were processed into polyester cotton blended combed fabric and polyester cotton blended semi-combed fabric using the same weaving and dyeing processes. The two types of fabric were tested for various style parameters, including tensile, shear, bending, compression and surface characteristics using KES fabric style analyzer. The results showed that compared with polyester cotton blended semi-combed fabric, the polyester cotton combed blended fabric exhibited improvements in various style aspects. The bending rigidity was reduced 20%, bending hysteresis distance was reduced 17%, compression work ratio was reduced 22% and fluctuation of friction coefficient was reduced 18%. It is considered that the polyester cotton blended combed fabric has better qualities in terms of softness, smoothness and resilience compared to the polyester cotton blended semi-combed fabric. [ABSTRACT FROM AUTHOR]

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PPG-5-CETETH-20 is a multifunctional raw material. It has a wide range of application in skin care and hair care products. The purpose of this study was to evaluate the performance of PPG-5-CETETH-20 in shampoos and conditioners. The results showed that, PPG-5-CETETH-20 could improve the combability, softness and smoothness of hair. In additional, it could improve foam stability and fine bubbles therein, without any influence on the transparency of the products. [ABSTRACT FROM AUTHOR]

Objective:The current study provides training to parents and teachers about pediculosis in schools in three villages in Adana to measure their knowledge level by conducting surveys and to determine the prevalence of pediculosis in these foci.Methods:Pre- and post-questionnaires including 30 questions about pediculosis were handed to parents and teachers. The answers were analyzed with the Pearson correlation analysis. Overall, 418 school pupils s were examined for lice. The results of the head louse control were analyzed by the chi-square test and t-test.Results:We observed that the level of awareness increased in parents and teachers. Additionally, the gender of both teachers and parents was determined as the most important factor in increasing this awareness. Because of interventions for the control of head and lice, the prevalence of pediculosis decreased from 15.22% to 1.71%.Conclusion:It is very important that parents and teachers are aware of the health problems related to pediculosis, while regular combing of school children may be essential for the control of this common infestation.

Due to the shifting customer pursuit towards fashion comfort and function people,s demand for high-quality fabrics has generally increased. Polyester yarn has many excellent characteristics such as few slubs high strength and good elasticity which makes it occupy an increasing proportion in the field of clothing. However polyester fabrics have some problems such as easiness to have rungs poor softness and poor moisture permeability. Thus it is important to improve the wearability of polyester fabrics. However the previous studies mainly focused on improving the wearability of polyester fabrics by chemical methods or controlling some special factors. By studying the combing process of cotton spinning it can be seen that combing can improve the separation parallelism and uniformity of fibers. Therefore in this paper the combing process was introduced and the HC380H chemical fiber comber was used to comb the polyester slivers. Then the sliver blending process was used in drawing process and the carded pre-drawing slivers were blended with combed slivers with different combed fiber contents. In the spinning process 14. 8 tex yarn was produced by compact spinning technology and the effects of different combed polyester fiber contents and structures on the wearability of fabrics were studied by selecting woven fabrics with different structures. Six groups of pure polyester yarns with different combed fiber contents and one group of carded polyester yarn were designed. Plain weave and 2 / 1 twill weave were designed and weaved to study the effects of combed polyester fiber content on the wearability of woven fabrics. At last the anti-pilling tendency tensile properties tearing properties fabric style air permeability and moisture permeability of the fabric were tested and then the effects of different combed polyester fiber contents and structures on the wearability were compared and analyzed. It is shown that the combed fiber contents and structures have a direct impact on the moisture permeability air permeability fuzzing and pilling tensile properties tearing properties and fabric style. With the same combed fiber content plain fabrics exhibit better tensile properties fuzzing and pilling properties while twill fabrics possess better moisture permeability air permeability and tearing properties and are also softer and smoother. Under the same structure when the proportion of polyester combed fiber is 66% the fabric has good moisture permeability tensile properties flatness and smoothness. When the polyester combed fiber content is 100% the tearing property fuzzing and pilling properties of the fabric are the best. The subsequent yarns and woven fabrics are influenced by the ratio of polyester combed fiber content. Compared with carded fabrics the fabrics containing combed fiber perform better on comfort strength softness and smoothness. However when the content of polyester combed fiber is higher than 66% the differences in the main quality indicators of the fabric are no longer obvious. The research results can provide a reference for developing high quality and cost-effective polyester woven fabrics. [ABSTRACT FROM AUTHOR]

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The harvest from agricultural crops is formed in the leaves of plants due to the process of photosynthesis, all the technological activities that affect the development of leaves in the cultivation of crops are studied, the accumulation of dry matter in the smooth licorice plant is analyzed. In this experiment, the effects of various stimulants and biofertilizers on the development of smooth licorice were studied and analyzed.

Tied links in S 3 were introduced by Aicardi and Juyumaya as standard links in S 3 equipped with some non-embedded arcs, called ties, joining some components of the link. Tied links in the Solid Torus were then naturally generalized by Flores. In this paper, we study this new class of links in other topological settings. More precisely, we study tied links in the lens spaces L (p , 1) , in handlebodies of genus g , and in the complement of the g -component unlink. We introduce the tied braid monoids T M g , n by combining the algebraic mixed braid groups defined by Lambropoulou and the tied braid monoid, and we formulate and prove analogues of the Alexander and the Markov theorems for tied links in the 3-manifolds mentioned above. We also present an L -move braid equivalence for tied braids and we discuss further research related to tied links in knot complements and c.c.o. 3-manifolds. The theory of tied links has potential use in some aspects of molecular biology. [ABSTRACT FROM AUTHOR]

Copyright of Cotton Textile Technology is the property of Cotton Textile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Textile Leader is the property of China Textile Information Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of News of Kazakhstan Science / Novosti nauki Kazahstana is the property of NCSTE (JSC National Center for State Scientific and Technical Evaluations) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Background The eggs of head lice are fixed to the hair of their hosts by means of a persistent glue-like fixative that is not chemically bound to the substrate. Eggshells stuck to hairs after successfully treating the infestation are a cosmetic issue and a source of misunderstanding about whether the infestation is eliminated. Hitherto, no effective treatment to loosen louse eggs and nits has been found. Methods An extensive screening of surface active compounds, oils, esters, and other cosmetic lubricants used a slip-peel device to measure the forces required to release the grip of the fixative. Promisingly effective compounds were formulated into suitable carriers for further testing. The most effective combination formulation was tested, as a commercial product (Hedrin Stubborn Egg Loosening Lotion), in a usage study of 15 children with nits, in which one half of the head was combed only on damp hair and the other half combed after a 10 min treatment using the product. Results Laboratory tests of the forces required to remove nits found that pelagonic acid derivatives, particularly isononyl isononanoate, in the presence of a polymeric gelling agent and water, were most effective to reduce the initial grip of the fixative as well as reducing friction as the eggshell is drawn along the hair shaft and that the final product was significantly (p

An eccentric swing combing device was designed on the basis of the growth characteristics of Cerasus humilis in mature stage in this work to improve the removal rate and reduce the damage rate. The device adopted a swing mechanism to realize comb rod entry from the roots of branches and an eccentric mechanism to realize horizontal combing. The kinematic equation and the main affecting factors of the combing effect were obtained through the kinematic and dynamic analyses of the combing device. Rotation speed, feeding speed, and comb swing angle were considered the influencing factors, and removal and damage rates were taken as the evaluation indexes. We conducted an experiment of quadratic orthogonal rotation centre combination with three factors and five levels on the combing device. Results showed that the contribution rate of each factor to the removal and damage rates was in the order of feeding speed, rotation speed and comb swing angle. The best combination of parameters was obtained as follows: rotating speed of 11.26 r/min, feeding speed of 0.227 m/s, and comb swing angle of 5°. The removal and damage rates were 95.21% and 4.56%, respectively, under this parameter combination. The relative error with the predicted result was less than 5%. This study can effectively improve the effect of C. humilis fruit removal and provide reference for further design of C. humilis harvesting machinery. [ABSTRACT FROM AUTHOR]

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Characteristics of differential fibers was introduced. Focusing on the high failure rate, low carding and purity - removing ability and bad spinnability of A186D carding machine in producing differential fibers, the author proposed some measures about carding clothing selection, taker - in and cylinder speed control, sliver quantification , flat speed and temperature and humidity control. The practical results showed that these measures could improve the carding quality of differentiated fiber on A186D carding machine. [ABSTRACT FROM AUTHOR]

The design concept of new-type elastic flat clothing with low, shallow and high-density. The horizontal clothing density is less than 0. 317 5 mm. The needling at the inlet and outlet was gradually dense and the angle was designed according to the property of fibers. The flat clothing could increase the exchange times between cylinder covers, reasonably set fiber carding channels, reduce the load of needle flour, improve the rolling resistance and strengthen the interception function between needle teeth of the covers. The results of practical application of the clothing on different fibers show that it is helpful to solve the problems such as card clothing inlaying, poor carding effect, much lint, difficult removal of fine impurities, etc. [ABSTRACT FROM AUTHOR]

The fiber movement between the cylinder and plate as well as the abnormal state of noil on the flat of a carding machine is introduced. It was found that factors such as the physical dimension of cylinder and flat, fiber property, temperature and relative humidity, blowing process, as well as the management and basic part precision of related equipment could cause the abnormal state. In production, it can control the flat pattern state by adjusting the needling, angle and needle height of cover flat and the working angle and density of cylinder clothing according to the fiber property. [ABSTRACT FROM AUTHOR]

Background. The eggs of head lice are fixed to the hair of their hosts by means of a persistent glue-like fixative that is not chemically bound to the substrate. Eggshells stuck to hairs after successfully treating the infestation are a cosmetic issue and a source of misunderstanding about whether the infestation is eliminated. Hitherto, no effective treatment to loosen louse eggs and nits has been found. Methods. An extensive screening of surface active compounds, oils, esters, and other cosmetic lubricants used a slip-peel device to measure the forces required to release the grip of the fixative. Promisingly effective compounds were formulated into suitable carriers for further testing. The most effective combination formulation was tested, as a commercial product (Hedrin Stubborn Egg Loosening Lotion), in a usage study of 15 children with nits, in which one half of the head was combed only on damp hair and the other half combed after a 10 min treatment using the product. Results. Laboratory tests of the forces required to remove nits found that pelagonic acid derivatives, particularly isononyl isononanoate, in the presence of a polymeric gelling agent and water, were most effective to reduce the initial grip of the fixative as well as reducing friction as the eggshell is drawn along the hair shaft and that the final product was significantly (p < 0.05) more effective than several other marketed materials. In the usage study significantly (p = 0.01046) more louse eggs and nits were removed after treatment with the gel. Discussion. The product developed through this study is the first with a demonstrable efficacy for loosening the grip of the louse egg fixative from hair. Consequently, until now, and despite the availability of effective pediculicidal treatments, dealing with the eggshells persisting after an infestation has been an onerous task for most households. This type of product can enable families to deal more easily with persistent eggshells and improve self-esteem in affected children. [ABSTRACT FROM AUTHOR]

Removing head louse eggshells and nits after a successful pediculicide treatment is often made more difficult because it is not easy to see them all amongst the hairs. Therefore, a treatment that makes louse eggs more visible potentially makes the task of removal easier and reduces the risk that children would be sent home from school or over-treated. This project involved the development of a hair treatment gel concept that was easy to apply, wash out, and that stained louse eggs and nits but without staining the hair and skin. A series of food-grade dyes were evaluated for their ability to stain the eggshells, and various copolymer-based rheology modifiers were tested for dye compatibility and stability. Several dyes were rejected because either they failed to stain louse eggshells or else stained skin too easily. Two dyes, Patent Blue and Ponceau 4R, were eventually selected for different product developments, one specifically for post-treatment nit removal and the other for pre-treatment diagnosis. In clinical field studies, both were found to make the treated eggshells contrast sufficiently with the hair to enable identification of persistent nits. Use of a nit stain product can enable easier detection of louse eggs and nits, thus facilitating the removal process and reducing the risk that persistent eggshells could be mistaken for signs of a continuing infestation.

Copyright of Cotton Textile Technology is the property of Cotton Textile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Summary: Background: Hair coloring is broadly used by women and men either to change their natural hair color or to delay the onset of gray hair. Oxidative dyes may damage the hair, as chemical and physical processes are required to convert the fiber structure and, consequently, alterations in its mechanical and surface properties. Objectives: The aim of this study was to evaluate the protective effect of silanetriol (and) Panthenol, PEG‐12 dimethicone, and hydrolyzed silk (and) hydrolyzed milk protein (and) lactose as conditioner agents on hair treated with oxidative hair dye by protein loss, combability, and breaking strength. Methods: In this research, we analyzed the untreated hair (sample I) and the effect of oxidative hair dye emulsions, with or without conditioner agents (sample II) silanetriol (and) Panthenol (sample III), PEG‐12 dimethicone (sample IV), and hydrolyzed silk (and) hydrolyzed milk protein (and) lactose (sample V) on Caucasian hair. The hair samples were submitted to protein loss quantification, breaking strength, and combing analysis. Results: For protein loss, the results were: IIa = Va > IVb > IIIc > Id. For the breaking strength: Ie = IIe = IIIe = IVe = Ve. For the combing analysis for wet and dry hair, the results were, respectively: IIa > IIIb = IVb > Vc > Id and IIA > IIIb = Vb > IV c= Ic. Data classified by different letters presented statistically significant alterations, α = 5, P ≤ . 05, n = 15. Conclusions: Based on these results, the incorporation of conditioner agents into emulsion blond color decreased the damage caused by the coloring process. [ABSTRACT FROM AUTHOR]

Objectives: It is commonly assumed that, due to the long growth cycle of hair, multi‐cycle combing, and strength and fatigue testing using thousands of cycles is relevant for product evaluation and claim substantiation. The objective was to assess the frequency and magnitude of combing forces on individual hairs against a hypothesis that fibres on a consumer's head rarely experience significant loads during routine combing. Methods: Single fibres were removed from a tress, attached to a load cell and replaced in the tress. Combing of tresses, guided by in‐vivo measurements, measured the frequency of significant loads defined as 'events' ≥1 g over 30 combing sets (set = 10 comb strokes @~25 cm s−1) with intermediate tangling. Asian and Caucasian hair was assessed by dry, wet, bleached‐wet and bleached‐dry combing. A questionnaire of 231 Asian and Caucasian women established daily frequency and number of comb strokes for the whole head. In‐vivo combing videos of 10 women (five Asian, five Caucasian) were used to establish in‐vivo and tress combing speeds. Results: The questionnaires returned an average combing frequency of 1.7×/day (range 0–5) and average number of strokes 16 ± 2.3 per head/day (95% CI). Video analysis measured combing speeds of 22–35 cm s−1 across hair types. Tress data confirmed individual fibres are unlikely to experience repeated loading or significant loads in all but wet combed persulphate bleached hair. 'Events' of ≥1 g ‐ dry combing gave an event probability of 0.2 and average load of 1.7 g over 30 comb sets. Dry combed bleached samples returned a probability of 0.23 and 0.3 respectively. Wet combed virgin Asian and Caucasian hair gave a probability of 0.1 and 0.47 respectively. Wet combed bleached hair gave a probability of one. The addition of a conditioner to bleached hair reduced the event probability to <0.1. Conclusion: During combing, individual fibres may not experience any significant loads and are unlikely to experience repetitive loads >10 g. The low number of comb strokes and low event probability is in keeping with consumers growing their hair long and in good condition. The data indicates the need for a significant rethink of methods used for product evaluation and claim substantiation. The load cell attachment to a single fibre passes freely through the tress clamp allowing a full range force measurement from 0–100 g. [ABSTRACT FROM AUTHOR]

How to reduce the noil and optimize carding technology on an E86 cotton comber was studied. In the process of combing preparation, the extended parallelization of fiber was improved. On the comber, the fiber's straightness, parallelization and separation degree were improved by bigger ration, shorter feeding and less noil. Besides, bigger drafting ratio and gauge at back zone were adopted after drawing. When treating rough yarn, bigger rough twist factor, bigger back zone gauge, bigger forward position on the front top roller as well as smaller draft distribution were adopted. In spun yarn process, bigger roving twist factor, bigger spun yarn back zone gauge and bigger forward position of front top roller as well as small drafting ratio at back zone, smaller nip gauge and floating zone length were adopted. By these measures, the noil amount and cost are reduced and the yarn quality is improved. [ABSTRACT FROM AUTHOR]

Root-soil separation is a critical link in Polygonum cuspidatum harvesting. It has been shown that combing machines are very useful for separating soil from root. However, it is a common occurrence during this process for Polygonum cuspidatum to be entangled by the machine, which leads to excessive energy consumption. In order to overcome the imperfections and defects of this kind of machine, a new roller finger for root-soil separation was designed. By applying the slide-cutting theory, the critical slide-cutting angle of the roller finger was calculated. Considering the friction coefficient between between Polygonum cuspidatum and roller finger, the slide-cutting angle was found to be more than 30°. By solving the differential equation and the logarithmic spiral equation, the curve equation of the roller finger was established in polar coordinates. With a mechanical model between Polygonum cuspidatum and roller finger set up, a function involving energy consumption, rotational speed of roller, length of roller finger and slide-cutting angle of the roller finger was obtained. It was found that the optimal slide-cutting angle varied in energy consumption with the difference of the coefficient of friction between Polygonum cuspidatum and roller finger. A pseudo-color energy figure about the relationship among consumption, angle of friction and angle of slide-cutting was shown with the MATLAB (Matrix Laboratory) software by the function derivation of the slide-cutting angle. It turned out that the optimal slide-cutting angle increased slowly as the coefficient of friction grew. Utilizing the curve, the maximal slide-cutting angle was obtained. The rotational speed of roller (Factor A), the slide-cutting angle (Factor B) and the length of roller finger (factor C) were selected as 3 factors of the orthogonal simulation experiment in order to explore their impact on the rate of soil-detachment and energy consumption. The priority order of the factors for the rate of soil-detachment was A > C > B > A×B > A×C > B×C, and that for the energy consumption was C > A > B > A×B > A×C > B×C. The rotational speed of roller and the length of roller finger had an extremely profound effect on the rate of soil-detachment while the slide-cutting angle had a profound effect on it. Meanwhile, those 3 factors also had an extremely profound effect on the energy consumption. Although the 3 factors performed differently on the rate of soil-detachment and energy consumption, by utilizing a fuzzy comprehensive evaluation method, a comprehensive evaluation on the results of the rate of soil-detachment and energy consumption was carried out by the multi-objective optimization design method. Results reflected the important differences between the rate of soil-detachment and energy consumption, and a weight matrix was set for fuzzy calculation. According to the comprehensive evaluation, the sequence of the influence of the factors on the comprehensive result was A > C > B×C > A×C > A×B > B, and the rotational speed of roller had an extremely profound effect on the comprehensive result while both the length of roller finger and the slide-cutting angle × length of roller finger had a profound effect on it. The results of fuzzy calculation showed that the optimal parameters were as follows: the rotational speed of roller of 350 r/min, the slide-cutting angle of 67°, and the length of roller finger of 30 mm, and under these conditions the rate of soil-detachment was 93.03% and the energy consumption was 76.73 W. [ABSTRACT FROM AUTHOR]

Copyright of China Textile Leader is the property of China Textile Information Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

More than half of the world’s population has dandruff, and people spend more than ten billion annually to defeat them. This study found by known experimental tests that dandruff is a mix of different molecules; saturated fatty acid, died cells and dust. A fifteen teenagers (22-25 years old) were randomly choiced for investigating some important information about dandruff. These teenagers indicate that they used many treatments last years without getting good results also they mentioned that dandruff appear in winter and it disappears at summer. In addition, they feel embarrass when see that their hairs have dandruff and sometimes itchy or hard one causing pain leading to unlikely behavior. This research contain the right treatment for this unlikely disease. [ABSTRACT FROM AUTHOR]

No doubt that ring spinning will continue to remain the important yarn manufacturing system for the short staple spinning. Innovation has occurred through the introduction of compact spinning, which offers superior quality and better fiber utilization. With this technology, the problematic spinning triangle has been minimized, resulting in ideal yarn structure which is marked by a low degree of hairiness and higher tenacity. This study focused on the investigation of the effect of changing the fiber properties through controlling noil percentage on the structure parameters of compact single and plies yarns. From the analysis of the results, the optimum combing noil percentage for the production of Quality fine compact yarns at 5% Uster level for single or ply yarns can be achieved.