21
2020
07

T-shirt Knowledge Introduction

1. What is grammage?

Gram weight is generally used to indicate the thickness of the fabric, the greater the weight, the thicker the clothes. The weight of T-shirt is generally between 160 grams and 220 grams, too thin will be very transparent, too thick will be stuffy, generally choose between 180-260 grams. (Short-sleeved T-shirts are generally based on 180-220 grams. This thickness is just right to wear. Long-sleeved T-shirts generally choose 260 grams of fabric, which is thicker)


2. What is count?

Definition: The number of length yards of cotton yarn with a nominal weight of one pound.


Coarse count yarn: pure cotton yarn with 18 counts or less, mainly used for weaving thick fabrics or piled looped cotton fabrics.


Middle count yarn: 19-29 count pure cotton yarn. Mainly used for knitted garments with general requirements.


Fine yarn: 30-60 pure cotton yarn. Mainly used for high-grade knitted cotton fabrics. The higher the count will be softer, In general T-shirts are 21 and 32.


3. What is combing?

T-shirt cotton yarn can be divided into carded and combed yarn.


Carded yarn: refers to the yarn spun by the carded spinning process, also called uncombed yarn.


Combed yarn: refers to the yarn produced by using high-quality cotton fiber as raw material and adding a combing process to that of carded yarn during spinning. The surface of the fabric is relatively clean, and the hand feels very soft.


4. What are the processes for T-shirt printing?

T-shirt printing is basically divided into screen printing and transfer printing.


Screen printing: The technology is relatively complex, mainly including design, film production, printing, printing, and drying steps. The advantages of screen printing are high color fastness, durability and washability. The screen printing plate-making cost is relatively high, so mass production is needed to reduce the cost, and it cannot meet the printing of single or very small batches.


Transfer printing: Also known as heat transfer. The advantages are bright color and simple technology. The disadvantage is that the pattern is not durable, not resistant to abrasion and can't stand washing.


5. How to singeing treatment ?

The characteristic of singeing treatment is to remove the fluff formed on the surface of the yarn due to unwound fibers and protruding fibers, making the fabric more smooth and beautiful, and the fabric color is uniform, and it can print clear and fine patterns.


6. What are the advantages of pure cotton T-shirt ? Why add spandex?

Pure cotton fabrics are characterized by good hand feel, comfortable and environmentally friendly, but easy to wrinkle. Adding a small amount of spandex yarn can significantly change the physical properties of the fabric, greatly increase the elasticity of the fabric, while maintaining the texture and comfort of pure cotton. In addition, adding spandex to the collarband can prevent the collarband from becoming loose and deformed and maintain the lasting elasticity of the neckband.


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