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The Role of Raising Agent and How to Use It

Apr 12, 2021

The function of the raising agent is to make the fabric soft and fluffy, and it is easy to raise the fabric when it is processed by the raising machine. Some modified silicone oils and water-dispersible polyester derivatives can all be used as raising agents.

The fabric passes through a series of raising rollers covered with steel wire card clothing. The needle points of the metal card clothing pick up the fibers in the weft yarn of the fabric and generate fluff after being hooked. These raising rollers rotate on their own axis and revolve around a large passive roller. By controlling the speed and tension of the raising roller, normal raising is carried out.
This product is a weak cationic surfactant, non-toxic, resistant to acids, alkalis and hard water. Used for raising and sanding aids for cotton, linen fabrics, knitted fabrics, polyester-cotton blends, etc. After treatment, the surface of the fiber is smooth and the fabric is bulky. After the fleece of the steel wire raising machine or sanding roller sanding machine, a short, uniform and dense fluff on the surface can be obtained after sanding, and it can also be used for soft finishing. Finishing makes the product feel smooth and plump, and it is not easy to cause pinholes when sewing.

    Technical index:
    Appearance: white or light yellow emulsion
    Ionicity: weak cationic
    PH value: neutral
    Solid content: 18-25%
    Solubility: any mixed solution with water
    Application method:
 20*10, 42*40, double-sided raised flannel at room temperature, padding raising agent DH-171 working fluid-drying-steel wire raising machine fleece-washing at 80 ℃-drying and printing or dyeing. The hair effect of the fabric should be measured before raising, and the dosage of raising agent DH-171 should be determined according to the height of the hair effect, the general amount is 8-15g/L

Grinding fur 16*20, 128*60 twill sanding padding raising agent DH-171 is used as liquid, drying and sanding, the general dosage is 5g/L
Anti-pilling and pilling agent is a kind of low-temperature environmentally friendly water-based polyurethane emulsion. Through the introduction of double bond-containing hinge component copolymerization in multiple monomers, special fabric macromolecules are introduced in the polymerization process, so that the main body has considerable The pre-crosslinked network structure can effectively prevent pilling of the surface fibers after the clothes are worn for a long time, thereby greatly improving the anti-pilling and pilling performance of the fabric.

It involves the production process of a raising agent. The steps are as follows: (1) Add octamethylcyclotetrasiloxane and a catalyst to a glass-lined reactor, replace the air in the reactor with nitrogen, and then close the reactor; (2) Use clamps The steam is heated to 100~125℃ for ring-opening polymerization for 2~10 hours, and then at 120℃~130℃, the vacuum degree is controlled at 600~700mmHg, and the time is 0.5~2.0 hours; (3) Cool to 60~70℃. The materials are transferred to the emulsifier, the emulsifier is added and mixed uniformly, and then deionized water is added to prepare an emulsion with a specified content, and then transferred to the mixing pot to add supporting auxiliary agents to prepare the product fluffing agent. The advantages of the present invention are: The emulsification equipment is made into emulsion, and then combined with supporting auxiliaries and compounded to achieve the synergistic effect of each component, so that the pure polyester leather base fabric can be raised and raised; the invention process is simple, the production cost is low, and there is no three wastes. Industrial production.

1 First of all, raising oil is generally called raising agent. Since many Hong Kong dyeing factories and masters and dyeing and finishing technologies have entered the Pearl River Delta during the reform and opening up of Guangdong, Hong Kong people believe that oil is more expensive than water, and many additives are used. Call it oil.
2. Whether it is polyester, cotton, acrylic and other fabrics, all raising agents should generally have three functions: one is fluffy, the other is slippery, and the third is to have a certain feel after treatment.
3 Fluffy and slippery is for the steel needle on the raising roller to easily enter the cloth surface and pull up the hair when raising. Hand feel is for the suede surface after fluffing to have a smooth hand feel and feel comfortable to the touch.
4 It is not difficult to see from the above 2nd point that the components of the raising agent must have these characteristics. The smoothness of simethicone is not to be said, very good, but the stability of the emulsification performance of simethicone is not good, and it is relatively easy. Demulsification.
5 The same additives have many different formulas, as long as they can achieve the goal. The main reason is to consider safety. The demulsification of silicone emulsion has a relatively large impact on production and fabrics. My personal recommendation is to use less. This is only a recommendation. Raising agent can reduce the fiber friction coefficient, prevent static electricity generation, improve the uniformity of bristles and reduce the number of bristles; give the fabric a dry, bulky and rich raising effect; high temperature resistance, used for dyeing fabrics, does not affect the shade and fastness of the dyed material Degree; can be used together with cationic and non-ionic processing aids.

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