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1. Polyvinyl alcohol (PVA) has water solubility, mechanical properties, film-forming properties, emulsification, organic solvent resistance, etc. It is widely used in textiles, papermaking, wood processing, daily chemicals, medicine, sewage treatment and other fields. It is a functional polymer material with a wide range of uses. In addition, PVA is considered to be a truly biodegradable synthetic polymer that can be completely degraded by a single microorganism or symbiotic population in nature to produce CO2 and H2O. It is a promising environmentally friendly material. Therefore, using PVA as the sea phase of water-soluble sea island fibers can completely solve the problems of human harm and environmental pollution caused by benzene reduction and alkali reduction of traditional sea island fibers from the source.
2. Polyvinyl alcohol (PVA) can be used with PA6, PET, PTT, PP, PLA, PA56 and other polymers through composite spinning to produce sea island fibers with different island phase resins. It can also be used with PA6, PET, PTT, PP, PLA, PA56 and other polymers through composite spinning to produce orange segment fibers, sandwich fibers, and skin-core fibers. After adding functional masterbatch to the island phase, different composite spinning products such as antibacterial and anti-ultraviolet, flame retardant, and coloring can be produced.
3. Water-soluble sea island fiber can replace traditional benzene-reduced and alkali-reduced sea island fiber to produce ultrafine products, and the water-reduced sea island fiber color yarn has bright color and better color fastness after water reduction, and will not produce color migration. At the same time, it can also produce products that cannot be produced by benzene-reduced and alkali-reduced sea island fiber. For example, a regenerated leather product "cow fiber leather", wool products, etc.
4. The sea phase resin (PVA) dissolved by water-soluble sea island fiber can be recycled and reused through recycling equipment. It can produce fibers, spinning industry sizing, advanced water-absorbent sponges, etc. The use of water-soluble sea island fiber to produce ultrafine fiber products can solve the problem of commercial pollution caused by dissolving sea phase resin pollution from the source
5. The world's technical difficulties in the composite spinning of new sea island fiber materials. The modified materials undergo a series of processes to compound the sea phase and island phase materials into silk. After cooling, oiling, curling, drying and other process flows, 95-degree hot water is used to dissolve the sea phase (polyvinyl alcohol) component in the fiber, leaving the island structure of the ultrafine fiber. During the entire water fiber opening process, no chemicals are used, the hot water can be recycled, and the dissolved polyvinyl alcohol can be recycled and reused. The water-soluble sea island fiber is truly pollution-free and green from the source to the finished product.
