Basic knowledge of fabrics and techniques commonly used in pajamas

January 17, 2023


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Basic knowledge of fabrics and techniques commonly used in pajamas
Source | Baidu Library
First, the basic knowledge of pajamas fabric


1. What is weight ?

Gram weight is used to indicate the thickness of the fabric , the greater the weight , the thicker the fabric. The weight of the pajamas is generally between 220 grams and 600 grams . It is too thin to be very thin, too thick to be stuffy, generally it is better to choose between 220-600 grams. (Short-sleeved pajamas summer 180-220g generally to wear mainly because suitable thickness, the new long-sleeved pajamas winter generally selected 600 grams of fabric, are thicker type)
2 , what is the count?
Definition: The length code of a cotton yarn with a nominal weight of one pound.
Coarse yarn: generally 17 or less pure cotton yarns, mostly used for weaving thick fabrics or piled cotton fabrics.

Medium yarn: generally 19-28 cotton yarns. Most of the knitwear used for general requirements, such as some new autumn and winter pajamas.

Fine yarn: 29-60 cotton yarn. Most are used in high-grade cotton fabrics. The higher the count, the softer it is. Some summer and autumn thin pajamas are generally 22 and 33.

3. What is combing? Pajamas cotton yarn can be divided into carded and combed yarn.

Carded yarn: A yarn that is generally spun by a carded spinning process, or an uncombed yarn.

Combed yarn: Generally used as a fabric made of high-quality cotton fiber, which will increase the yarn produced by the combing process than the carded yarn. The surface of the fabric is relatively clean and the hand feels very soft.

3. Classification of pajamas fabrics:

(1). Ordinary pajamas cotton fabric casual pajamas mostly use ordinary cotton materials, this original pajamas are comfortable to wear, but the stiffness is slightly poor. Easy to wrinkle, easy to deform after launching.

(2). Mercerized cotton fabric is made of ordinary cotton fabric. This raw material pajamas are made of comfortable mercerized cotton fabric with cotton as raw material. After 3 passes, finely woven into high-yarn yarn, followed by singeing, mercerizing, etc. The processing process produces a high-quality anti-wrinkle mercerized yarn that is smooth, soft and wrinkle-resistant. The high-quality fine knitted fabric made of this raw material not only completely retains the natural characteristics of raw cotton, but also has silky luster and softness. The fabric is soft to the touch, moisture absorbing and breathable, and the elasticity and drape are quite good; The pajamas thus made are comfortable and casual to wear, and fully reflect the taste and temperament of the wearer.

(3). Pure cotton double-silk fabric Pure cotton double-silk fabric is a “double-burned double-filament” pure cotton product. It is made of singeed and mercerized mercerized yarn, using CAD computer aided design system and CAM computer. The auxiliary production system can quickly weave the design of the flower fabric, after the scouring and mercerizing of the grey fabric, after a series of finishing, the high-quality knitted fabric is produced, and the brand pyjamas made of the fabric are used. The surface is bright and lustrous, the hand feels smooth, the lines are clear, the pattern is novel, and it is better than the mercerized cotton, but the price is generally slightly more expensive due to the need for two mercerizing finishes.

(4). Ultra-high-yarn cotton fabric, this kind of fabric is rarely used by enterprises, because the price is very expensive, the price of 122 yarn cotton pajamas fabric is as high as 220 yuan a kilogram, and 200 yarns of cotton T-shirt The price of fabrics is even higher, reaching more than 3,200 kilograms, and the cotton brand pajamas fabric of about 240 yarns needs to be as high as 1700 pounds, and China has not yet produced the fabric level of this fabric.


Commonly used fabrics for pajamas and t-shirts include: polyester-cotton hexagonal, square-corner mesh, herringbone pattern, composite rib, cotton jersey, polyester-cotton single-sided and double-sided, as well as pure cotton, and mesh. Not easy to deform, but wearing comfort is worse than pure cotton. The characteristics of common polyester-cotton fabrics: washing is not easy to deform, the hand feels thick and soft, but the wearing comfort is slightly worse than pure cotton. The common polyester cotton is 81% cotton, 19% polyester or 60% cotton, and 40% polyester. Features of cotton fabric: good hand feeling, comfortable and environmentally friendly, weight between 170 grams and 300 grams, too thick will be stuffy, too thin will be very transparent, generally choose between 170-270 grams weight, the count is generally It is 22 and 31 or so, which means the average length of cotton fiber, the higher the softer, and the veil is divided into general yarn, semi-finished yarn and fine yarn. The surface of the fabric is rough, especially the color comparison. Deep fabrics have white yarn points. The surface of the finished fabric is neat and tidy, and the hand feel is soft.
Second, the common techniques of pajamas


1. What are the techniques for pajama printing?

Pajama printing is basically divided into two parts: screen printing and transfer printing.

Screen printing: The technology is more complicated, mainly designed, out of the film, printing, printing, drying several steps. The advantages of screen printing are high color fastness, long lasting and washable. Screen printing has a high cost, so mass production is required to reduce costs, and it is generally not possible to print in single or very small batches.

Transfer printing: also known as heat transfer. The advantage is bright color, the technology is relatively simple and easy to use. The disadvantage is that the pattern has poor durability, is not wear-resistant, and is not washable.


2. How is pajamas burned?

The characteristics of singeing treatment are: removing the bristles formed on the surface of the yarn by the unwound fiber and the protruding fibers, so that the fabric of the pyjamas is smoother and more beautiful, and the fabric of the pyjamas is evenly colored, and the clear and fine pattern can be printed.
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