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50 combed cotton yarn

Classification:Yarn Products

Species:50 combed cotton yarn

Characteristic:Cotton yarn is spun by a spinning system. Combed yarn selection of high quality raw materials, yarn fiber straight parallel, knot less, good gloss, evenness, high strength, this kind of cotton yarn used for weaving high-grade fabrics.

Application field:Cotton is widely used, it can be used as woven yarn, such as sheets, quilt cover, curtains and other home textiles.

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Cotton yarn is made of cotton fiber spinning process, the yarn is called cotton. According to the different process of spinning, it can be divided into general combed yarn and combed yarn. (1) carded yarn: cotton yarn is spun by ordinary spinning system. (2) combed yarn: cotton yarn spun by a spinning system. Combed yarn selection of high quality raw materials, yarn fiber straight parallel, knot less, good gloss, evenness, high strength, this kind of cotton yarn used for weaving high-grade fabrics.

 

Machining

The production method of cotton yarn is more complex, generally speaking, there are two kinds of spinning methods, namely, general spinning and combed spinning.

(1)Carded cotton, spinning, cotton opening, carding, drawing, roving, spinning, doffing (manual winding and automatic winder two) and product inspection.

(2)Combed spinning process: with cotton, cotton spinning, carding, drawing, winding, combing, drawing, roving, spinning, doffing (manual winding and automatic winder two) and product inspection.

 

          

 

Type

There are many classification methods of cotton yarn.

(1)According to the thickness of the customary points:

①Coarse yarn: 17 "special" (Tex) and the following cotton yarn are coarse yarn. Mainly used for weaving thick or fleece, ring cotton fabrics, such as denim, denim cloth, etc;②In 18 - 27 yarn: cotton yarn is yarn for weaving cloth, twill, satin and other general fabric;③Fine yarn: 28 and above for shirting poplin, cotton yarn, weaving high-grade needle, woven fabric.

(2)According to spinning principle:

①Free end spinning (such as air spinning, siro spinning)②Both ends of the spinning (such as ring spinning, compact spinning) as well as a more popular in recent years is the vortex spinning, spinning technology is the use of air to improve the principle of rotation.

(3)According to the grade of cotton assorting:

①Carded yarn: spun yarn spun by a spinning process that has not been combed;②Combed yarn: cotton fiber quality as raw material, spinning when conventional combing yarn increases a combing process, yarn quality, high-grade fabric weaving, such as advanced shirting poplin, etc;③Waste: refers to the raw material for spinning spun yarn with cotton waste processing all down in the spinning, weaving, cloth and blankets for junior Baupib;④A new type of yarn: yarn spun from a new spinning system.

(4)According to twist:

①Backhand twist (also known as Z twist) yarn, the most widely used in a variety of fabrics;②Easy twist (also known as S twist) yarn used to weave the weft yarn.

(5)According to yarn usage:

①The warp is woven fabric in the direction parallel to the selvage yarn, has great strength, generally larger twist;②Weft is in the direction of vertical edge in the woven fabric yarn, warp strength requirement is low, generally lower than the warp twist, keep certain softness;③ Knitting yarn is required to clean, uniform, small twist, in order to prevent the bending of the broken ends in weaving;④Industrial yarn, such as tire cord, conveyor yarn, medical and health yarn.

(6)According to yarn dyeing and finishing:

①Color yarn (also known as the original color yarn): to maintain the fiber color, weaving for the primary color fabric;②Dyed yarn: dyed yarn made of raw yarn by boiling and dyeing;③Colored yarn (including mixed yarn): the first fiber dyeing, and then spinning the yarn, can be woven into the appearance of irregular stars and patterns of fabrics;④Bleached yarn: made from unbleached yarn, used in weaving bleached fabrics and woven with dyed yarns;⑤Mercerized cotton yarn. Mercerized and mercerized yarn for weaving high-grade yarn dyed fabric;⑥Jenappe yarn singeing machine: the burned surface of the yarn hairs, with smooth surface made of yarn for weaving high-grade products.

(7)Divided by use:①Woven (woven) yarn: twist factor greater than 360.② Knitting yarn: twist factor less than 330

(8)According to yarn forming equipment: ring spinning, air spinning (OE), siro spinning, compact spinning, rotor spinning, vortex spinning, electrostatic spinning, etc.

(9)According to the shape of the yarn: yarn, yarn.

 

        

 

 

Specification quality

(1)Yarn quality:

①General card single yarn specifications, generally divided by the number of 70 - 56, 55 - 44, 43 - 37, 36 - 29, 28 - 19, 18 - 17, 16 - 10, 9 - 7, - 3;②The specification of combed cotton yarn, divided by the number of 150 - 131, - 130, - 110, - 91, - 71, 70 - 56, 55 - 44, 43 - 37, 36 - 29, 28 - 19, 18 - 16.

Knitting yarn demands yarn twist, evenness, assurance of knitting Rongyi villi thick, good elasticity, warm and strong. The requirements of weaving yarn are light, the weft yarn is few and the evenness is uniform.

(2)Test method: according to the national standard, the quality of yarn quality index and weight unevenness of cotton yarn. According to evenness and neps, impurities and grain number of cotton yarn rating. The quality index mainly refers to the strength of the yarn, it reflects fabric durable durable performance in a certain extent. Type of yarn mainly reflects the difference of thickness and appearance of yarn defects, which directly affects the appearance of the fabrics, such as texture clear and even, the size of the shadow. The level of production and management, the quality of the yarn process conditions, mechanical condition, technical level, raw cotton quality and reasonable use is closely related to.

Technical specifications of cotton yarn can be seen in GB/T398 - 93 national standard.

Cotton inspection method according to GB/T398 - 93 "cotton yarn qualities"; GB/T4743 95 "yarn linear density (or number) method for the determination of skein method"; SN/T0450 95 "export cotton yarn combed polyester cotton blended yarn and inspection".

Inspection in accordance with the quality and specifications stipulated in the trade contract.

 

        

 

Packing&Storeage

According to the use of different types of cotton yarn can be divided into yarn and yarn.

The inner packing of cotton yarn is plastic bags, with the product name and specification name, factory, registered trademark name, grade, weight, batch number, number, number and date of yarn package labels.

Cotton cartons or plastic woven bags, packaging should comply with the clean, dry, strong, suitable for long distance transportation.

Cotton yarn inspection valid for one year in the north, the south for half a year. More than the validity period must be checked. Check the main items: mildew, moth eaten, water stains, pollution, damage, etc.