The Working Principle of Easy Care and Wrinkle-Proofing Finishing Agent
I. The mean of easy-care finishing
Compared with chemical fiber, natural fiber has excellent moisture absorption, air permeability, and anti-static properties. It is an ideal material for clothing, but it is easy to wrinkle after washing and needs ironing. With the accelerating pace of modern life, people generally have no time to iron clothes, thus easy-care finishing has become one of the indispensable and important processes in the textile dyeing and finishing.
The easy-care textile on the market mainly includes shirts and pants, uniforms and other clothing, and bed sheets, pillowcases, curtains, tablecloths and other household textiles.
II. The causes of wrinkle of textiles
Cellulose fibers are divided into crystalline and amorphous areas, and amorphous areas determine the softness of the fibers. Under the action of the external force (washing or wearing process), the fiber is bent and deformed, the inner part of the amorphous region is broken by hydrogen bonds, and a new hydrogen bond is formed at the new position, and the relative displacement is produced in the crystalline region. When the external force is eliminated, the system undergoes creep recovery. When the external force is large enough and long time effect on it, the newly formed hydrogen bonds generated resistance is greater than the restoring force, so that the system can not completely eliminate deformation in the external force to recover the original shape, and the deformation will not restore as a permanent deformation, i.e. forming wrinkle.
III.The working principle of textile's easy care and anti-wrinkle finishing
Wrinkle mainly includes two kinds of performance: ①improve the anti-wrinkle of textiles, refers to the deformation of the fabric requires a larger force, it needs to be achieved mainly by increasing the fiber stiffness;② improve textile wrinkle resilience, which accelerated the recovery rate of fiber, enhance its elasticity.
We know that the wrinkle is caused by low recovery rate high elastic deformation permanent deformation, If we heat or swell the stretched permanent deformation of fiber, it would make the fiber part of the attractive force between the molecules is weakened. Thereby reducing the blocking effect of the new bond, to return to its original shape of the fiber. At present, anti-wrinkle principle includes two principles as follows:
1. Resin deposition theory
In the early days of anti-wrinkle finishing, the theory of resin deposition is mostly used in condensed resins. They are multifunctional compounds. Using this kind of finishing agent for textile processing, after baking, the early shrinkage will further condensate to form a network structure, and deposit between in the amorphous region or fibrils, In this theory, by mechanical action, the relative slip of cellulose fiber can change the molecules or the basic structural units, namely by mechanical friction or hydrogen bonding, it will change the rheological property, thereby improving the anti-wrinkle property of textiles.
2. Covalent cross-linking theory
This theory is more convincing than the theory of resin deposition. It is suitable for crosslinking finishing agent. Under certain conditions, the finishing agent can not only polycondensation by itself, but also react with hydrogen bonds on cellulose. Therefore the textile finishing agent crosslinking after finishing agent by the single molecule or polycondensate form covalent cross-linking molecular chain in the amorphous region between cellulose fibers, like two powerful finishing agent out of the "hand" seize the chain in the amorphous region, which contain and fixed effects the fiber between molecular chains, limits the relative slip between the molecular chains of two, thus reducing the deformation without immediate recovery, so as to improve the recovery ability of fiber deformation, which improves the fabric elasticity, the smoothness can be improved.
Compared with chemical fiber, natural fiber has excellent moisture absorption, air permeability, and anti-static properties. It is an ideal material for clothing, but it is easy to wrinkle after washing and needs ironing. With the accelerating pace of modern life, people generally have no time to iron clothes, thus easy-care finishing has become one of the indispensable and important processes in the textile dyeing and finishing.
The easy-care textile on the market mainly includes shirts and pants, uniforms and other clothing, and bed sheets, pillowcases, curtains, tablecloths and other household textiles.
II. The causes of wrinkle of textiles
Cellulose fibers are divided into crystalline and amorphous areas, and amorphous areas determine the softness of the fibers. Under the action of the external force (washing or wearing process), the fiber is bent and deformed, the inner part of the amorphous region is broken by hydrogen bonds, and a new hydrogen bond is formed at the new position, and the relative displacement is produced in the crystalline region. When the external force is eliminated, the system undergoes creep recovery. When the external force is large enough and long time effect on it, the newly formed hydrogen bonds generated resistance is greater than the restoring force, so that the system can not completely eliminate deformation in the external force to recover the original shape, and the deformation will not restore as a permanent deformation, i.e. forming wrinkle.
III.The working principle of textile's easy care and anti-wrinkle finishing
Wrinkle mainly includes two kinds of performance: ①improve the anti-wrinkle of textiles, refers to the deformation of the fabric requires a larger force, it needs to be achieved mainly by increasing the fiber stiffness;② improve textile wrinkle resilience, which accelerated the recovery rate of fiber, enhance its elasticity.
We know that the wrinkle is caused by low recovery rate high elastic deformation permanent deformation, If we heat or swell the stretched permanent deformation of fiber, it would make the fiber part of the attractive force between the molecules is weakened. Thereby reducing the blocking effect of the new bond, to return to its original shape of the fiber. At present, anti-wrinkle principle includes two principles as follows:
1. Resin deposition theory
In the early days of anti-wrinkle finishing, the theory of resin deposition is mostly used in condensed resins. They are multifunctional compounds. Using this kind of finishing agent for textile processing, after baking, the early shrinkage will further condensate to form a network structure, and deposit between in the amorphous region or fibrils, In this theory, by mechanical action, the relative slip of cellulose fiber can change the molecules or the basic structural units, namely by mechanical friction or hydrogen bonding, it will change the rheological property, thereby improving the anti-wrinkle property of textiles.
2. Covalent cross-linking theory
This theory is more convincing than the theory of resin deposition. It is suitable for crosslinking finishing agent. Under certain conditions, the finishing agent can not only polycondensation by itself, but also react with hydrogen bonds on cellulose. Therefore the textile finishing agent crosslinking after finishing agent by the single molecule or polycondensate form covalent cross-linking molecular chain in the amorphous region between cellulose fibers, like two powerful finishing agent out of the "hand" seize the chain in the amorphous region, which contain and fixed effects the fiber between molecular chains, limits the relative slip between the molecular chains of two, thus reducing the deformation without immediate recovery, so as to improve the recovery ability of fiber deformation, which improves the fabric elasticity, the smoothness can be improved.
Hydrophilic Finishing Agent 8068B
This product is a kind of multi-functional finishing agent, suitable for cotton, polyester, blended fabric etc.hydrophilic finishing.
【Main composition】 Polyester-polyether type of block copolymer
【General properties】
Apperance: milky white or beige emulsion
Ionicity: nonionic
PH value： 6～8
Solubility: dilute with water at any ratio
【Product features】
1. Strong adaptability, not only suitable for rolling - roasting - baking finishing process, also suitable for high temperature dyeing finishing with bath,
2. Give polyester and its blended fabric dirt resistance, air permeability and durable;
3. Color fabric color affect basic no effect;
4. Dyeing and finishing bath can prevent polyester in overflow dyeing machine for a long time extrusion and produce line, chicken paw prints to prevent the disease, with dyed fabric bulk, soft handle,
5. Particularly suitable for knitting sweater, sports socks etc.fabric.
【Application】
1.High temperature high pressure dyeing with bath use: add 2 ~ 4% (owf), add other additives and dye;
2.Rolling - roasting - baking finish: 10 ~ 40 g/l, two dip two rolling, 90 ℃ drying,170 ℃ baking 30 - 60 seconds.
【Packaging and storage】
125 kg/polyethylene drum, 12 months in sealed container at room temperature.
【Notes】
The data contained in this literature are based on our current knowledge and experience. It is imperative that it be tested to determine, to your satisfaction, whether it is suitable for your intended use and application. We shall not take any responsibility in any situation for improper use.
【Order MOQ】
Normally, order MOQ is 3 tons per model and we can offer lowest price with more quantity.
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