I was chatting with a colleague today and said that the pure cotton T-shirt she bought was so comfortable. I asked weakly, did it shrink? Deformed? Say no! Tell her directly that you have been cheated
As a textile chemical engineer, I can’t bear to tell everyone the truth. Pure cotton = good quality = expensive = no shrinkage? I can’t bear to tell you the truth, all cotton T-shirts will definitely shrink!
Especially the cotton T-shirts that are recognized by everyone as being of good quality and comfortable material. Because cotton fiber has strong water absorption, the fiber loses elasticity after absorbing water, and the volume of the entire cotton fiber shrinks. (Actually, you will know the principle when you put cotton in water!) Moreover, the higher the quality of cotton, the easier it is to shrink or stretch. Therefore, the more well-designed the fabric, the more careful you need to be when washing it.
Fortunately, some professional brands will mercerize (alkaline treatment) the pure cotton before it is woven into cloth, so that the cotton fabric can basically not shrink at all. .
100% cotton, not easy to deform and wrinkle?
I am very responsible to tell you that you have been deceived. The characteristics of cotton fiber determine that it is easy to deform and wrinkle. T-shirts made of cotton are elastic and supportive. They are all relatively poor, with the upper body stretched across the body. . .
Isn’t it sad that the T-shirt style you usually wear is so comfortable?
In fact, it’s because a kind of T-shirt fabric that everyone despises is added to the cotton-chemical fiber , just the icing on the cake of T-shirt fabrics:
a, cotton-polyester: 80% cotton + 20% polyester
It overcomes the shortcomings of pure cotton that is easy to wrinkle and deform, and its hygroscopicity is equally good, better than pure cotton.
b, cotton + nylon:
Elastic and silky, comfortable to wear.
c, cotton + Lycra (spandex):
Elastic fabric, more slimming, close-fitting, not uncomfortable It will feel the same as wearing it.
d, Modal:
New environmentally friendly material, water-absorbing and sweat-wicking hundreds of times better than cotton,
The only disadvantage is that it is easy to change. It would be good if it is blended with polyester or Lycra.
e, 100% polyester:
Functional fabrics from ADIDAS and NIKE, suitable for wearing during exercise, and can absorb sweat in time evaporation.
A good T-shirt is not only related to the material, but also to the weight, count, and cutting.
Gram weight
Said here The gram weight is not the weight of the clothes, but the grams of cotton per square meter used to make the T-shirt.
The greater the weight, the thicker the clothes. Too thin and it will be too transparent, too thick and too hot. Generally, short-sleeved clothes weigh 180-220 grams
Just right
Count
Count refers to the average number of yards of cotton yarn fiber length in one pound. T-shirts are generally 21 and 32. The highest yarn count now is 170 (generally imported from Japan).
The higher the yarn count, the finer, thinner and better the feel of the knitted clothes.
Cutting
T-shirt absolutely It is not as simple as sewing two pieces of cloth together. An extra stitch can better ensure that it will not deform and wrinkle.
In addition, the shoulder line of the T-shirt is appropriately positioned. If it is too narrow, it will shrink the neck and make the arms thicker. , those that are too wide are not energetic and tend to appear hunchbacked.
I say so much, in fact, I don’t want everyone to be deceived, but it is not good to know too much.
