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 a T-shirt is generally between 160 grams and 220 grams. Too thin will be very transparent, and too thick will be stuffy. Generally, it is better to choose between 180-280 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)
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: pure cotton yarn with 30-60 counts. Mainly used for high-grade knitted cotton fabrics. The higher the count, the softer the T-shirts are generally 21 and 32.
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 the raw material and adding a combing process to that of carded yarn during spinning. The surface of the fabric is relatively neat, and the hand feels very soft.
What are the crafts of school polo shirt printing?
School polo 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 required 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 has poor durability, is not resistant to abrasion, and is not resistant to washing.