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[Key Product No. 04 of China Textile Chemicals] Meeting the dyeing requirements of nylon/spandex blended fabrics—specialized dyes for high-foam wet fastness

2026-09-14

Nylon‑spandex blended fabrics are widely used in the market for manufacturing fashion apparel, swimwear, sportswear, high‑end lingerie, automotive interiors, and other textile products. At the same time, consumer demands for product comfort and functionality continue to rise, with particular emphasis on wet‑rubbing fastness in nylon/spandex dyeing. In response to these specific market needs, our company has developed a specialized series of dyes that deliver exceptional wet‑rubbing fastness, thereby meeting end‑market requirements for colorfastness in such textiles.

　　Nylon–spandex blended fabrics are widely used in the market for producing fashion apparel, swimwear, sportswear, high‑end lingerie, automotive interiors, and other textiles. At the same time, consumer demands for product comfort and functionality continue to rise, with particular emphasis on wet‑rubbing fastness in nylon/spandex dyeing. In response to these specific market needs, our company has developed a specialized series of dyes that deliver exceptional wet‑rubbing fastness, thereby meeting end‑market requirements for colorfastness in such textile applications.

　　In response to the widespread market demand for red‑tone varieties, we have launched products including Ceril Crimson N‑HGL, Ceril Bright Red N‑GR, Ceril Rose Red N‑WB, and Ceril Red N‑RS.

　　This type of product meets the specific requirements for various performance characteristics and color fastness across different shade depths in textiles such as nylon/spandex. In particular, it effectively addresses the issues of poor wet‑rub fastness and cross‑coloring that often arise in multi‑fiber fabrics after dyeing. It exhibits excellent compatibility, color‑light stability, and reproducibility, elevating the dyeing process for nylon/spandex products to a new level and significantly enhancing the quality of textile fabrics.

Results of the color‑transfer resistance testPost-staining blister assay result image

Dyeing Formulation and Process

Dye X: 2%

Leveling agent FK-462: 2%

Acetic acid: 2% (pH 4–5)

Process conditions: 98°C × 60 min

Post-dyeing color-fixing treatment

Nylon color-fixing agent NL-47: 2%

Acetic acid: 2% (pH 4–5)

Process conditions: 80°C × 20 min

Bubble‑forming process conditions (Type 2)

Category 1: Steep in boiling water for 30 minutes.

Category 2: Blue Moon cleaning solution, 5 g/L, 60°C for 60 minutes.

　　Beijing CTA Tex Chemicals Co., Ltd. (CTC)  is a high-tech enterprise controlled by China Textile Science Research Institute Co., Ltd., a subsidiary of General Technology New Materials. The company focuses on the research, development, production, sales, and service of textile chemicals, multifunctional finishing agents, and biotechnology‑related products. In recent years, it has invested heavily in the development and commercialization of environmentally friendly water‑repellent agents, nylon‑series auxiliaries, printing pastes, and chemical formulations for lyocell fibers, earning strong brand recognition and significant market influence.

　　If you are interested in our products, please contact: 010-67832928-8216.

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