As research and development investments continue to strengthen, the company's products have gained increasing popularity in the market, propelling the company onto a fast track of development." Yao Shusheng said, "Currently, the company has hired technical experts from Japan, South Korea, and other countries for product development, including waterborne polyurethane adhesives. The company's R&D team alone consists of over 80 members. It's due to the bold investment in R&D that the company, as a waterborne polyurethane manufacturer, has grown increasingly influential in the industry. Currently, products like solvent-free resins, waterborne polyurethane resins, waterborne coatings, and environmentally friendly carbon black, produced by the company, are at the forefront of the industry and are well-received by both domestic and international clients.

Acid dyes are widely used in dyeing materials like wool, nylon, silk, and velvet, but they commonly suffer from poor color fastness. To address this issue, a new generation of formaldehyde-free acid dye fixing agent, PCF, has been researched. It is an odorless, transparent liquid that can be diluted with water to any degree. The pH value of a 1% PCF solution is 2.0. After treatment, the dyed materials exhibit significantly improved wash fastness, no color change, and no concerns about contamination or sticking after processing. It features minimal color change, notable improvements in soap wash, perspiration, and abrasion resistance.

PCF can be used in a bath with various cationic, non-ionic surfactants, or cationic synthetic resin prepolymers.

Technical Specifications: Fabrics treated with acid-fixing agent PCF meet standard requirements for both dry and wet rub fastness, as well as for Henan water-based polyurethane and other water wash and perspiration resistance.

Application Range: Fixation and finishing for various fabrics such as wool, nylon, silk, leather goods, etc. Recommended product: Germany NBS Acid Fixing Powder. Chemical and Physical Properties: Appearance: Yellow-brown powder; Ionicity: Anionic; pH: [No Chinese content provided]

Value: 7.0-8.0 (1% water solution)

Most waterborne polyurethane is thermoplastic polyurethane, which can be bonded using hot melt adhesive methods. In this case, it's necessary to master the melting viscosity characteristics of polyurethane. Generally speaking, a melting viscosity of around 104 Pa·s is a suitable hot melt bonding temperature.

5. Other

(1) Velvet Processing: In velvet processing, the adhesive must have strong adhesion to PVC plastic substrates or fabrics. The fabric velvet requires a formed velvet layer with resistance to both dry and wet washing, as well as adaptability to secondary processing. Electrostatic velvet processing poses a fire hazard, so water-based adhesives must be used. Water-based polyurethane has excellent flexibility, soft adhesive layers, and can be used as a velvet adhesive. The performance of water-based polyurethane with internal cross-linking or water-based polyurethane adhesives with added cross-linking agents exceeds that of ester adhesives. As a velvet adhesive, it must be thickened.

For example, an anionic polyurethane made from polyether diol, DMPA, polyester plasticizers, a small amount of trihydroxyl cross-linking agent, antioxidant, and triethylamine is thickened to 48 Pa·s with a polyacrylic thickener. It is applied to diagonally woven cotton fabric, with a wet adhesive layer thickness of 0.25mm. Artificial silk fibers 1mm long are sprinkled within 15-30 seconds, and the nap is定向 by a beater. After drying at 150-155℃ for 5 minutes and blowing off any unadhered fibers, a plush product with a soft fabric feel is obtained. The performance evaluation, after dry and wet wiping tests, is rated as Grade A.

Water-based Polyurethane Manufacturer - Henan Water-based Polyurethane - Block Silicone Oil supplied by Zhejiang Luoxing Chemical Co., Ltd. Journeying Farther, Striving Forward. Zhejiang Luoxing Chemical Co., Ltd. is committed to becoming a strategic partner that wins together, coexists, and progresses with you, and is dedicated to becoming a competitive enterprise in polyurethane raw materials. Let's soar together and achieve success! Meanwhile, our company also deals in Guangdong Polyurethane, Jinjiang Water-based Polyurethane wholesale, and Linhai Water-based PU Resin manufacturing. Welcome to call for inquiries.