CR spandex jersey printing: full analysis of technology, functions and application trends

CR spandex jersey printed fabric is a functional knitted fabric made of viscose (CR) fiber and spandex fiber as core raw materials, combined with plain jersey structure and printing technology. It combines the moisture-absorbing, breathable, skin-friendly and smooth properties of viscose fiber with the high elasticity and rebound advantages of spandex. It has rich printing patterns and high color fastness. It is a mainstream fabric in the fields of underwear, casual T-shirts, fashionable women's clothing and other fields.

1. Principles: The core logic of elastic comfort and printing color fixation

1. Elasticity and skin-friendly principle The basic structure of the fabric is a plain jersey tissue, and the coils are arranged tightly and flatly to ensure the breathability and fit of the fabric; the spandex fiber is integrated into the viscose yarn in the form of core-spun yarn, and the high breaking elongation of spandex (up to 500%) is used to give the fabric horizontal and vertical stretch resilience. The viscose fiber relies on natural cellulose components to simulate the soft feel of cotton fiber, and at the same time absorb moisture much faster than pure cotton, achieving The dual effect of "high elasticity without tightness, moisture absorption without sweatiness".

2. Printing Fixation Principle The high hygroscopicity and porous structure of viscose fiber give it good adsorption capacity for dyes. When using reactive printing or digital printing technology, the dye molecules can penetrate deep into the fiber and covalently combine with the hydroxyl groups of the viscose fiber, greatly improving the color fastness of the printing and avoiding color fading in washing and rubbing. At the same time, the flat surface of the jersey cloth can better restore the details of the printing pattern, making the colors more vivid and the patterns clearer.

2. Craftsmanship: the fine process from raw materials to finished products

1. The mainstream ratio of raw material ratio and yarn preparation is viscose fiber 80%~90% + spandex 10%~20%. The viscose ratio determines the skin-friendly and moisture-absorbing properties of the fabric, and the spandex ratio controls the elasticity. Spandex yarn is used as the core yarn and viscose staple fiber is covered to make a core-spun yarn, which not only prevents the spandex from directly contacting the skin and creates a sticky feeling, but also improves the tensile strength of the yarn.

2. The jersey weaving process uses a computer-programmed single-jersey knitting machine to weave plain jersey tissue and control the knitting needle tension evenly to ensure a smooth surface of the fabric with no missed stitches or knots. During the weaving process, the stretch of the spandex needs to be accurately adjusted to avoid uneven elastic distribution causing local relaxation of the fabric.

3. The printing and finishing process first involves pre-shrinking and shaping to control the fabric shrinkage within 3% to prevent pattern deformation due to shrinkage after printing; then choose reactive printing (suitable for mass production) or digital printing (suitable for small batches of personalized patterns) according to needs. After printing, it undergoes high-temperature color fixing treatment; finally, soft finishing and anti-static finishing are performed to improve the slight fluffing problem of viscose fabrics and improve wearing comfort.

3. Application Category: Covering practical scenarios in multiple fields

CR spandex jersey printed fabric has a wide range of application scenarios and is highly targeted due to its skin-friendly, high elasticity and beautiful printing characteristics:

• Intimate underwear field: used to make seamless underwear, thermal underwear, underwear, etc. The moisture-absorbing and skin-friendly properties of viscose are suitable for close-fitting wear, the elasticity of spandex fits the body shape, and the printed patterns add to the beauty of the product.

• Casual clothing field: It can be used to make T-shirts, base layer shirts, home clothes, etc. The flat jersey surface and bright printing enhance the appearance of the clothing. The high elasticity makes wearing more comfortable, and the moisture absorption performance ensures dryness for daily wear.

• Fashion women's clothing field: used to design dresses, tank tops, leggings, etc. The printing patterns are rich and diverse, suitable for different styles of wear. The drape and elasticity of the fabric can better show the clothing pattern.

• Children's clothing: As the preferred fabric for children's T-shirts and pajamas, viscose fiber is naturally mild and non-irritating. Its high elasticity is suitable for children's lively and active characteristics, and its printed patterns are deeply loved by children.

4. Maintenance: maintenance skills to extend the life of fabrics

1. For washing requirements, it is recommended to wash by hand or machine in cold water (water temperature ≤ 30°C). When washing in a machine, put it in a laundry bag to avoid mixing with rough clothes such as jeans to prevent the printed pattern from being scratched and the fabric from fluffing. Use neutral detergent, and prohibit alkaline detergents and bleaches to prevent the viscose fiber from yellowing and the spandex elasticity to decay.

2. Drying and ironing: Dry in the shade or dry on the opposite side to avoid sunlight exposure. Viscose fiber is prone to aging and hardening when exposed to the sun for a long time, and prevents the printed pattern from fading. The ironing temperature is controlled at 110℃~130℃. When ironing, put a layer of damp cloth on it, and give priority to ironing the reverse side of the fabric to avoid direct contact with the printed pattern at high temperatures, which may cause smearing.

3. When storing, please fold and store it flat to avoid stretching and deforming the fabric caused by hanging for a long time; keep the storage environment dry and ventilated to prevent the viscose fabric from getting moldy; keep away from sharp objects to prevent snags from damaging the coil structure of the jersey fabric.

5. Technology: the core breakthrough direction of performance upgrades

1. Functional modification technology uses antibacterial and deodorant finishing to attach antibacterial agents to the fiber surface to inhibit bacterial growth and expand the application of fabrics in sports bras, medical underwear and other fields. It uses a cooling finishing process to give the fabric a cool feeling on contact, adapting to the needs of summer clothing.

2. Optimize the printing process and develop high-definition digital printing technology to achieve refined restoration of patterns and support the printing of gradient colors and complex patterns; explore waterless printing processes to reduce water consumption during the production process and conform to the concept of environmental protection.

3. The innovative raw material technology uses recycled viscose fiber to replace virgin viscose, combined with bio-based spandex, to create environmentally friendly CR spandex jersey printed fabrics; through the application of ultra-fine denier viscose fiber, the softness and fineness of the fabric is further improved.

6. Trend category: new direction of market development

1. Personalized customization trend As flexible production technology matures, the cost of small batch customization of digital printing is reduced. Brand LOGOs and personalized patterns can be printed on fabrics on demand to meet the needs of niche clothing brands and e-commerce customization.

2. Environmental protection trend: The application proportion of environmentally friendly raw materials such as recycled viscose and bio-based spandex continues to increase. Green processes such as waterless printing and low-temperature fixation are gradually becoming popular. Low-carbon and environmentally friendly fabrics are more favored by brands and consumers.

3. The trend of functional compounding combines CR spandex jersey printed fabrics with multiple functions such as moisture wicking, antibacterial and deodorant, cooling and sun protection, and will become the mainstream choice for sports and leisure clothing, achieving a triple upgrade of "appearance + function + comfort".

CR spandex jersey printed fabric relies on the performance synergy of viscose and spandex and its rich printing performance capabilities. Driven by consumption upgrades and healthy living concepts, it is developing steadily in the direction of customization, environmental protection, and functionality.