Black Recycled Regenerated Cellulose Fiber

2025-04-01News 320

Reasons for recommendation

The amount of deforestation of forest resources can be decreased by

recycling and reusing waste cotton or cellulose products to make pulp,

either fully or partially. Green upgrading is accomplished when dope-

dyed technology is included.

Preparative technique

Recycled pulp is wet spun with color paste added to create the black recycled regenerated cellulose fiber product.

Features of fibers and finished products

Main Specifications

Staple: 1.33dtexx38mm, 1.67dtexX38mm

Relative Standards

Viscose staple fiber (GB/T 14463-2008)

Performance indexes of black recycled regenerated cellulose fiber

Specifications	Dry breaking strength (cN/ dtex)	Wet breaking strength (cN/dtex)	Dry elongation at break(%)	Wet modulus(cN/dtex)	Color fastness(grade)
1.33dtexx38mm	2.3	1.2	21.4	0.3	4

Properties of fibers and features of finished products

.The pulp made from partially or completely recycled materials is used as raw material, which is green and environmentally friendly.

.The dope-dyed technique eliminates the subsequent dyeing process and

reduces the production cost.

.The traceability technology makes the whole industry chain transparent from products to end brands.

.Biodegradable, coming from nature and returning to it.

.Soft, skin-friendly and breathable fabrics.

The downstream application guidance

Pre-setting:120°C pre-setting temperature; no dyeing agents are needed.

Pre-treatment: Refer to the cotton treatment process, which requires blanking, washing,burning, washing, setting, and secondary setting.

Post-finishing: The recommended post-setting temperature is 160~ 180°C, with acid, penetrating agent and softeners added.

Examples of downstream applications of black recycled regenerated cellulose fiber

Terminal field	Raw material ratio	Fiber specifications	Fiber specifications
Woven fabrics	70%dacron/cotton/hemp/30% black recycled regenerated cellulose fiber	1.33dtex/38mm	Compared with knitted fabrics, it has multiple advantages such as strength,abrasion resistance, easy handling and wrinkle resistance
Warp knitting fabric	50% black recycled regenerated cellulose fiber /28% dacron / 22% chinlon 70% black recycled regenerated cellulose fiber/30% chinlon	1.67dtex/38mm	Comfortable, adaptive, warm, breathable,elastic, versatile

Application of fibers

Clothing textiles:Baby clothes/Jeans/Sweater/High-end ready-to-wear

Q : How much does black recycled regenerated cellulose fiber lower carbon emissions? What is the significance of its elimination of the printing and dyeing process for carbon emission reduction in the industry chain?

A: The product is LCA certified, and SGS evaluated its cradle-to-gate impact on climate change, eutrophication, abiotic depletion, water consumption, human toxicity, and ecotoxicity. The basis and methodology of the assessment is in line with the Worldly MSI standards. The Worldly MSl data shows that the global average carbon emission of 1kg of viscose fiber is 8.36kg CO2-eq, while the carbon emission of 1kg of black recycled regenerated cellulose fiber is 3.10kg CO2-eq,

which is 5.26kg CO2-eq lower than the global average. The product eliminates the printing and dyeing processes, shortening the textile industry chain, and helping the industry chain reduce carbon emissions.