What is polyester cotton blend what are its characteristics?
Polyester / cotton blended fabric is a kind of fabric developed in the early 1960s in China. It has the characteristics of straightness, smoothness, quick drying, durability, etc., is deeply loved by consumers.
Polyester cotton fabric refers to the fabric mixed with polyester fiber cotton fiber, which only highlights the style of polyester, but also has the advantages of cotton fabric.
Performance characteristics of polyester cotton
Properties of polyester fiber
As a new type of differential fiber material, polyester fiber has the characteristics of high strength, large modulus, small elongation good dimensional stability. The fiber is soft in texture, good in cohesion, soft in luster has certain core warming effect. Polyester has poor hygroscopicity, its moisture regain rate is only about 0.4% in general atmosphere. Therefore, pure polyester fabric is stuffy hot to wear, but its fabric is easy to wash dry, so it has the reputation of "wash wear". Polyester has high modulus, next to hemp fiber, excellent elasticity, so the fabric is crisp, wrinkle resistant, stable in size good in shape retention. Polyester has excellent wear resistance, which is next to nylon, but it is easy to pick up pilling, the pilling is easy to fall off.
Performance characteristics of cotton fiber
The cross section of cotton fiber is irregular waist circle, with a middle cavity; the longitudinal end is a closed tubular cell, the middle is thick, the two ends are thin, natural crimp is the unique morphological characteristics of cotton fiber. Cotton fiber is alkali resistant, acid resistant has strong absorption. The moisture regain of cotton fiber in standard state is 7% ~ 8%, the ratio of wet strength to dry strength is 1.1 ~ 1.15. The strength of cotton fiber was affected when treated at 10 ℃ for 8h. Cotton fiber decomposes at 150 ℃ burns at 320 ℃. The specific resistance of cotton fiber is low, so it is easy to produce static electricity in the process of processing using.
Advantages of cotton polyester blend
It only highlights the style of polyester cotton, but also has the advantages of cotton fabric. Under dry wet conditions, it has good elasticity wear resistance, stable size, small shrinkage, has the characteristics of straight, easy to crease, easy to wash fast dry. Moreover, it is glossy, smooth crisp to touch, with a certain degree of elasticity. After hand rubbing, the crease is obvious the recovery is fast. However, the disadvantages of the same inherited chemical fiber: the place the friction is easy to pilling pilling. Polyester cotton blended fabric feels thick, soft comfortable to wear. It will deform, fold shrink after washing.
Let's take a look at the comparison between polyester cotton blend pure cotton:
Note: fabric (plain weave) specification: 1 × polyester / cotton 50 / 50 18.3tex × 18.3tex × 296 × 228; 2 × pure cotton 18.3tex × 18.3tex × 292 × 226.
Strength elongation (polyester cotton blend > pure cotton): refer to gbt3923.1-2013 "tensile properties of textile fabrics Part 1: Determination of breaking strength elongation at break strip method". The clamp distance is 200 mm, three pieces are taken the warp weft directions for test.
Wear resistance (T / C blend > pure cotton): refer to gbt21196-2007 Textiles - Determination of wear resistance of fabrics by the Martindale method - Part 1: Martindale wear tester. The test usually depends on the comprehensive properties of strength, elongation elasticity of yarn fiber, is evaluated according to the wear degree of fabric surface the change of physical properties of fabric.
Pilling pilling properties (polyester cotton blend < pure cotton): using gbt48021-2008 "determination of pilling pilling properties of textile fabrics Part 1: circular locus method", use nylon brush abrasive single abrasive to make the fabric pilling pilling, then under the specified light conditions, compare the pilling pilling samples with the standard samples to evaluate the pilling pilling grade.
T / C blended fabric is easy to pilling, mainly because the cotton fabric has low strength poor wear resistance, the wool balls pellets formed on the surface of the fabric are quickly worn off; while the chemical fiber its blended fabric are easy to slide out of the surface of the fabric due to the small cohesion between the fibers, the high strength of the fibers, the good elongation ability, especially the bending fatigue, torsion fatigue wear resistance It is easy to fall off quickly after forming small balls on the surface.
Crease resistance (polyester cotton blend > pure cotton): also known as crease recovery, usually expressed by crease recovery angle. The angle formed between the two wings is measured after the fabric is pressurized for a certain time according to the warp weft directions by using the horizontal wrinkle recovery angle tester, the measured angle is used to express the crease recovery ability of the fabric.
Moisture permeability (polyester cotton blend < pure cotton): put the moisture permeable cup containing distilled water sealed with fabric sample in the biochemical incubator with constant temperature humidity, weigh the mass change of the moisture permeable cup (including sample moisture absorbent water) after 1h, calculate the moisture permeability.
Air permeability (polyester cotton blend > pure cotton): under the specified pressure difference, measure the air flow through the sample vertically in unit time, calculate the air permeability of the fabric. In this paper, the air permeability of fabrics is determined by referring to gbt5453 "determination of air permeability of textiles".
Polyester cotton cotton polyester
"Polyester cotton" "cotton polyester", the order of the two words changed into two different fabrics.
"Polyester cotton" (TC) fabric refers to the polyester component accounts for more than 50%, the cotton component accounts for less than 50%;
Advantages: the luster is brighter than pure cotton cloth, the feel is smooth, crisp, easy to wrinkle, the higher the composition of polyester, the less likely the fabric is to wrinkle.
Disadvantages: skin affinity is as comprehensive, wearing no comprehensive fabric comfortable.
"Cotton polyester" (CVC) is the opposite, which means that the composition of cotton is more than 50%, that of polyester is less than 50%, also known as CVC variety.
Advantages: the luster is slightly brighter than pure cotton, the cloth surface is flat, clean free of gauze head impurities. It feels smooth, crisp wrinkle resistant.
Disadvantages: skin affinity is as comprehensive, wearing no comprehensive fabric comfortable.
