Dyeable Fibers: Coloring Is More Environmentally Friendly.

The research and development of < p > dyeable fiber is aimed at this topic. In order to meet the requirements of environmental protection, it is also aimed at reducing costs and enhancing competitiveness.

The dyeable fibers are improved by technology, and the polymerization and spinning temperature is lower than that of conventional polyester, reducing energy consumption by about 15%. Dyeing at normal pressure, and without alkali reduction, the fabric reduces water consumption and energy consumption by about 20%.

< /p >

Less than P, the island dyeable fiber is a representative work of dyeable fibers. It not only has high dyeing rate and low energy consumption, but also ensures the fabric's handle and can create beautiful colors and create a more colorful fiber world.

< /p >

< p > < strong > background > /strong > /p >

< p > < strong > solve the cost problem < /strong > < /p >

< p > < < a > href= > http://www.91se91.com/news/index_c.asp > polyester fiber > /a > has many excellent properties. At the same time, because of its close molecular structure, high crystallinity and orientation, and lack of polar groups, it can only be dyed with disperse dyes at high temperature (120 ~ 135 degree) or under the condition of carrier, so as to achieve higher dye uptake.

When blended with natural fibers or some chemical fibers, there are many problems such as poor dyeing process, increasing dyeing cost, increasing dye content in wastewater, and increasing the cost of wastewater treatment.

Therefore, the dyeing modification of polyester fiber has always been the focus of research and development.

< /p >

In the key projects of the national science and technology support program "new functional polyester fiber development and industrialization" in 11th Five-Year, P put forward the technical project of improving fiber dyeing.

The key technology of continuous polymerization of copolyester and soft dyeable fiber forming and energy saving dyeing and finishing completed by the Donghua University and Shanghai union fine Fiber Co., Ltd. broke the bottleneck of polyester production energy consumption and emissions.

The "super soft and dyeable polyester fiber product" developed by the project has low carbon environmental protection characteristics of atmospheric boiling dyeing and alkali free treatment, super soft handle, easy dyeing, deep dyeing, good hygroscopicity and remarkable anti pilling properties.

< /p >

< p > < strong > appearance < /strong > < /p >.

< p > < strong > has many advantages in one body < /strong > < /p >.

There are mainly two kinds of easy to dye fiber < p >.

One is a carrier free dyeable polyester at room temperature and pressure. It is made of copolymerization or block copolymerization and blending, so that polyester can be dyed with disperse dyes without carrier and dyeing temperature below 100 C.

The other is cationic dyeable polyester.

Cationic dyes are named as positive dyes due to their positive dyes. They have the advantages of complete chromatography, bright coloring, low price and simple dyeing process. They are synthetic dyes.

The dyeability of cationic polyester dyes can be given by copolymerization, graft copolymerization and additives.

Dyeable fibers enable the fabric to obtain rich and colorful colors through simple dyeing process, so the colorful fabric needs to be dyeable.

< /p >

< p > < a href= > http://www.91se91.com/news/index_c.asp > easy to dye fiber > /a > is also being constantly modified. In recent years, its comprehensive performance has been continuously improved.

The above mentioned super soft dyeable copolyester fiber and fabric dyeing technology first started with the design of polyester macromolecule structure, and optimized the esterification and condensation process. The research group solved the key technology of self catalysis and ionization aggregation of cationic dyeable groups, realized the molecular weight and sequence distribution of super soft soft dyeable copolyester, and selected a variety of modified combinations, which made the fiber soft handle and solved the key technology of deep dyeing of fiber and fabric under atmospheric pressure. The fabric made of super soft and easy dyeable copolypolyester fabric was composed of super softness, anti pilling, Hikaruzawa Youwa, bright coloring, and high color fastness.

Project polymerization and spinning temperature lower than conventional polyester, reduce energy consumption of about 15%, dyeing at normal pressure, fabric without alkali reduction treatment, reduce water consumption and energy consumption of about 20%.

< /p >

< p > easy to dye varieties in island fiber are the representatives of easily dyed fibers.

Island fiber is a polymer dispersed in another polymer, dispersed in the fiber section like "island" state, while the mother is equivalent to "sea", from the cross section of the fiber, is a component of the fine and dispersed state surrounded by another ingredient, as if there are many islands in the sea.

The "island" and "sea" components are continuous, dense and evenly distributed on the axial direction of the fibers.

In the production process, it has the fiber size of conventional fibers, but the superfine fiber bundles can be obtained by dissolving the components of the sea with solvents.

Island fiber components (general two components), islands generally use polyester (PET), polyamide (PA), polyacrylonitrile (PAN) and so on; sea components can be polyethylene (PE), polyamide (nylon 6 or nylon 66), polypropylene (PP), polyvinyl alcohol (PVA), polystyrene (PS), acrylic ester copolymer or modified polyester, etc. (COPET).

Island dyeable fibers are made of composite spinning, so that the islands of PET and PTT matrix are distributed orderly in the sea composed of polystyrene. When finishing the fabric, the composition of the sea is completely hydrolyzed by alkali reduction, and the components of the island are separated to form 0.06D superfine denier fibers. The surface has micropores, which is conducive to the absorption of dyes, so it has the characteristics of deep dyeing.

< /p >

< p > Jeter Suzhou dragon special fiber Limited by Share Ltd developed and produced Island dyeable fiber as new environment-friendly fiber, good antifouling performance, easy to dye, soft and elastic.

Introduction of the company's staff, this fiber compared with elastic fiber spandex, more easily processed, and with dry, neat, easy to iron, strong resilience, fabric has shape memory and restore memory function.

< /p >

< p > < strong > Application < /strong > < /p >

< p > < strong > < a > href= > http://www.91se91.com/news/index_c.asp > > energy saving > /a > style > /strong > /p >

< p > Island dyeable fiber can be more than 3 degrees deeper than ordinary Island silk, and its color fastness can reach more than 4 grade. It has completely solved the shortcomings of common Island silk.

In addition, through the design and processing of fabrics and the extreme fine fiber characteristics of island fibers, many special fabric styles can be obtained, such as imitation cashmere, suede and super high density fabrics.

These fabrics can be widely used in clothing, clothing, luggage, interior products and industry.

< /p >

< p > it is worth emphasizing that the performance of suede fabric developed by sea island fiber is no less than that of natural suede, and has many properties even better than natural suede.

< /p >

< p > at the same time, using dyeable characteristics of dyeable fibers can also create different fabric styles.

Dyeable fibers are interwoven or blended with wool, silk, protein fiber, spandex, acetate fiber and ordinary polyester to achieve the same bath dyeing. The fabric is of unique style. It is the ideal fabric for jackets, windbreaker, skirt, trousers and so on.

According to the relevant person in charge of Sheng Hong Company of Jiangsu, the cationic series dyeable fibers produced by Sheng Hong greatly improved the dyeability of polyester, increased softness, reduced crystallinity and improved dyeing effect.

Sheng Hong fully exerts the characteristics of dyeable fibers and interacts easily dyed fibers with ordinary polyester and other fibers to form a color effect. It can also change the proportion of cationic and polyester fibers and flower patterns according to customer needs, thus forming different colors.

< /p >