A kind of finishing agent and its preparation method and application
A technology of finishing agent and thickener, which is applied in the field of leather surface treatment liquid, which can solve the problems of affecting adhesion fastness and poor water resistance of coatings, and improve adhesion fastness, cohesion, and adhesion fastness increased effect
Active Publication Date: 2021-08-10
东莞市华印网信息科技有限公司
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Problems solved by technology
[0006] CN105442384A discloses a new type of digital inkjet non-woven base paper. The coating material is composed of the following components by mass: 20-18 parts of water, 35-28 parts of calcium carbonate, 3-5 parts of ultrafine silicon dioxide, and 32 parts of china clay -22 parts, 2-0.8 parts of leveling agent, 1.5-0.5 parts of active agent, 30-35 parts of latex agent, its smoothness is relatively high, but the main components of the printing coating are some filler powder and water-soluble adhesive, the Such coatings have poor water resistance and can only be applied to paper-based materials
CN102501673A discloses a method for preparing a nanocomposite ink-absorbing material for printing, using nano-titanium dioxide, nano-silicon dioxide, and graphene powder as adsorption materials, and matching suitable coupling agents and adhesives to improve the water resistance of the printing coating However, the inorganic powder in the coating will still affect the adhesion fastness
Method used
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Embodiment 1-5
[0058] Prepare the finishing agent by the components shown in Table 2, and the preparation method is as follows:
[0059] (1) In the stirring device, stir the water, defoamer, and dispersant evenly, and then mix them evenly with the toner powder;
[0060] (2) Use a sander (containing 0.5mm zirconium beads), grind at 3000r / min, use a 1 micron glass fiber membrane to filter the dispersion, take the filtrate, and the particle size of the polyacrylate after grinding is shown in Table 2;
[0061] (3) The filtrate was mixed with the modified polyurethane, and a thickener was added to adjust the viscosity to obtain a finishing agent. The viscosity is shown in Table 2.
[0062] Table 2
[0063]
[0064]
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Abstract
The invention provides a finishing agent and its preparation method and application. Based on the total mass of the finishing agent as 100%, the following components are included in mass percentage: modified polyurethane 45-70%; ink absorbing powder 6 ‑12%; defoamer 0.1‑0.5%; dispersant 0.2‑2.0%; deionized water balance. The finishing agent provided by the invention can solve the phenomenon of oozing, ink accumulation and shrinkage of the water-based paint inkjet ink on the leather surface; and after the water-based paint ink is solidified, it can improve the adhesion with the ink.
Description
technical field [0001] The invention belongs to the technical field of leather surface treatment liquid, and relates to a finishing agent and its preparation method and application. Background technique [0002] The leather industry covers the main industries such as tanning, shoemaking, leather clothing, leather goods, fur and its products, and is closely related to the daily life of residents. The printing market potential of leather and its products is great. The printing methods of leather and its products include dye printing, pigment printing, inkjet printing and transfer printing. [0003] The biggest advantage of dye printing is that the hand feeling is not affected, but leather cannot withstand high temperature steaming, so the process cannot be copied from textiles; non-steaming dyes are mainly 1:2 type metal complex dyes, which do not need to be steamed for printing leather , Just dry it, but this kind of dye is expensive, and its strength is only 30% to 50% of o...
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IPC IPC(8): C09D175/04C09D175/14C09D7/65
CPCC09D175/04C09D175/14C09D7/65C08L33/04
Inventor 陈镜宏林侨阳
Owner 东莞市华印网信息科技有限公司