Lenzing Modal recycled polyester spandex rib fabric: full analysis of performance, technology and application

Lenzing Modal recycled polyester spandex rib fabric is a new type of environmentally friendly knitted fabric woven from Lenzing Modal fiber, recycled polyester fiber and spandex fiber through a rib structure. It combines the skin-friendly properties of natural fibers, the environmental properties of recycled fibers and the comfortable ductility of elastic fibers. It has outstanding application advantages in the fields of clothing and home textiles.

1. Principles: Fiber characteristics and structural advantages

1. Fiber synergy principle: Lenzing Modal is derived from natural wood pulp and is made using a closed-loop production process. It has the characteristics of moisture absorption, breathability, softness and smoothness; recycled polyester is made from waste polyester materials through recycling, reducing resource consumption and carbon emissions; spandex fiber provides high elasticity and anti-wrinkle properties. The three fibers are blended in scientific proportions to achieve the superposition of "skin-friendly + environmental protection + elasticity".

2. Principle of rib structure: Rib tissue adopts a "one-by-one" interlaced coil weaving method. The surface of the fabric forms concave and convex longitudinal lines. Compared with plain weave fabrics, it has a higher transverse stretch rate, fits the curves of the human body and is not easily deformed. At the same time, the pattern structure improves the breathability and three-dimensionality of the fabric.

2. Technology: Key points of weaving and finishing techniques

1. Blending process: Lenzing modal fiber and regenerated polyester fiber are first opened and carded according to a preset ratio to make blended yarn, and then combined with spandex bare yarn to ensure that spandex is evenly distributed inside the yarn to avoid elastic failure or local uneven elasticity.

2. Rib weaving process: A double-sided rib knitting machine is used to weave rib fabrics with different grain widths by adjusting the alignment relationship between the needle cylinder and the dial, controlling the size and density of the loops; the tension must be strictly controlled during the weaving process to prevent yarn breakage or fabric defects.

3. Environmentally friendly post-finishing process: Use formaldehyde-free softeners for skin-friendly treatment, stabilize the fabric size through pre-shrinking and shaping processes, and reduce shrinkage after washing; some high-end products will also add anti-bacterial finishing processes to improve the anti-bacterial performance of the fabric, and follow green production standards throughout the process.

3. Application Category: Multi-field Adaptation Scenarios

1. Apparel field: It is the preferred fabric for underwear, base layer shirts, yoga clothes, and home clothes. It is skin-friendly and breathable, suitable for close-fitting wear. The elastic rib structure meets the needs of limb extension during exercise; it can also be used on T-shirt collars, cuffs, hems and other parts to enhance the fit and durability of clothing.

2. Home textile field: It can be used to make pillowcases, sheets, towels and other products. The soft touch improves sleep comfort. The hygroscopic performance can quickly absorb sweat and keep bedding dry. The ribbed texture can also increase the beauty of home textile products.

3. Children's clothing field: With the advantages of being environmentally friendly, non-irritating and having good elasticity, it is suitable for making children's underwear, crawlers, etc. It fits children's delicate skin, is durable and washable, and complies with children's clothing safety standards.

4. Maintenance: washing and maintenance skills

1. Washing method: It is recommended to use cold water hand washing or gentle machine washing. Avoid using high-temperature hot water to prevent the elastic fiber of the fabric from aging. Choose a neutral detergent and do not use bleach or strong alkaline detergent to avoid damaging the fiber structure.

2. Drying and storage: After washing, lay it flat to dry or dry in the shade. Avoid exposure to the sun to prevent the fabric from fading and hardening. When storing, fold it flat and do not pull hard to avoid deformation of the rib pattern. When storing for a long time, you can put a desiccant to prevent the fabric from getting damp and moldy.

3. Ironing precautions: If you need to iron, you need to set the low temperature mode (the temperature does not exceed 110°C) and put a layer of wet cloth on the surface of the fabric to avoid direct contact of the iron with the fabric, causing iron marks or elasticity failure.

5. Technology: core performance indicators and innovation directions

1. Core performance indicators:

• Elastic index: transverse stretch rate can reach 30%-50%, rebound rate ≥90%, no obvious deformation after multiple stretches;

• Moisture absorption index: The moisture absorption rate is better than that of pure cotton fabrics, and it can quickly transfer sweat from the skin surface to the outer layer of the fabric to evaporate;

• Environmental indicators: Recycled polyester content accounts for ≥30%, complying with GRS global recycling standards, and Lenzing Modal fiber has passed the EU Ecolabel environmental certification.

2. Technological innovation direction: develop a high-proportion recycled polyester blend formula to improve the strength and durability of the fabric; explore intelligent temperature-controlled rib fabrics, realize the temperature-regulating function of the fabric by adding phase change materials, and expand the application scenarios of outdoor clothing.

6. Trend Category: Market Development and Industry Direction

1. Environmental protection trend: Driven by the "double carbon" goal, the application proportion of recycled fibers continues to increase. Lenzing Modal recycled polyester-spandex rib fabric conforms to the concept of green consumption and has become a key purchasing category for brand clothing companies.

2. Functionalization trend: Consumers’ demand for functional clothing is growing day by day. Composite rib fabrics with antibacterial, sunscreen, moisture absorption and quick-drying functions will become the core direction of market competition.

3. Differentiation trend: Fabrics with customized rib patterns, colors and functional combinations can meet the personalized needs of different brands. Small batch and quick-return production models will gradually become the mainstream of the industry.