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Polyurethane is the short form of polyurethane (PU). It is a block polymer formed by addition polymerization. It is a polymer compound with flexible and elastic polyether or polyester as soft segment and rigid and hard carbamate as hard segment. It contains a considerable number of ammonia ester bonds. Waterborne polyurethane has been successfully applied in the textile printing and dyeing industr...
Water-based adhesion enhancer Product introduction Water-based adhesion enhancer, a water-based chlorinated PP acrylic emulsion, used to improve the adhesion effect of water-based paint and ink on polypropylene (PP) material. Suitable for PP substrate, can do bottom, surface coating paint. Product specifications Composition: acrylic modified emulsion Appearance: Milky white viscous liquid Non-vola...
Environmental protection pressure has prompted some traditional solvent-based products to gradually withdraw from the market and replace them with water-based, high solid content, powder products, etc.Waterborne polyurethane, as an important member of waterborne products, is facing unprecedented development opportunities with its unique excellent properties.In addition to the leather industry, it ...
First: Teflon coating introduction Industrial Teflon coating is suitable for plastic rubber mold, ball mold, glove mold, latex mold, roller, conveyor belt, mechanical parts and other surface treatment, containing "FEP" and "PTFE" polytetrafluoroethylene ingredients with high-performance resin, divided into the bottom coating and surface coating a total of two layers, has the best anti-corrosion, h...
The primer sprayed on the plastic surface can promote the effective adhesion between the glue and the material, increase the adhesion between the adhesive and the plastic, and solve the problem of degumming, and the main role of the primer is to solve the problem of degumming in the adhesive process. One: The definition of primer? The base coating agent is a base coating treatment agent that assis...
The foam problem in water treatment has troubled many people, debuting the initial foam, surfactant foam, impact foam, peroxide foam, circulating water treatment with non-oxidizing fungicide generated foam, etc., so the use of defoamer in water treatment is more common, this article comprehensively introduces the principle, classification, selection and dosage of defoamer! Methods of foam eliminat...
Let's take a look at the characteristics of water-based acrylic emulsion! 1.Excellent adhesion The polymer structure of the aqueous acrylic emulsion contributes to the flow and wettability of the molecular chains on the surface of the substrate, making the coating and the substrate molecules in close contact to achieve high adhesion. 2.The high bearing capacity of the filler can significantly redu...
First, environmental performance VOC content Needless to say, water-based wood paint is perfect in this respect, water-based wood paint is based on water as a solvent with ultra-low VOC content, and will not produce pungent odor during construction. Nitrocellulose paint and polyester paint add organic solvents, and their products contain benzene, toluene, xylene and its derivatives, whic...
The difference between water-based paint and paint: Compared with paint, water-based paint, its wear resistance, and aging resistance have been significantly improved, compared with traditional paint, water-based paint is more affordable, more easily used by people, and less harmful. Water-based paint, water as diluent, with wear-resistant, aging resistance, easy to use and other characteristics, ...
There are four common waterborne polyurethane thickeners: ①Inorganic thickeners, such as flake silicates, fumed silica, etc.; ②Natural organic thickeners, such as cellulose ethers; ③Synthetic organic thickeners, such as polyacrylates, polyvinylpyrrolidone; ④associative thickener. This paper mainly introduces the associated emulsion thickener. Associative emulsion thickeners are non-ionic synthetic...
In gravure printing, ink resolubility is also a key indicator to test the performance of ink. Especially in the color ink printing, the moderate resolubility can not only make the color fully displayed, but also solve the problem of shallow plate mesh blocking and overprinting cross-color. In color ink printing, according to the different hue requirements, the depth of the ink hole mesh of the pri...
After the ink is stored for a period of time, the upper part of the ink appears thin in the container, the viscosity is small, and the color and concentration are relatively poor; The lower part is thick, the viscosity is large, and the color and concentration are also relatively good. Intaglio printing inks are thin and have a small viscosity, because the pigment is poorly dispersed in the connec...
In order to prevent ink delamination and pigment precipitation, users must be fully stirred before printing. The following summarizes the faults and elimination methods of screen printing ink in use for your reference. 1.Poor adhesion: the reason is improper selection of ink, insufficient pre-press treatment, impurities in the substrate, insufficient drying temperature, insufficient time, improper...
With the development of the application of digital inkjet printing technology in the clothing industry, environmental monitoring is more stringent and the demand for small batch production and personalized customization is increasing. Therefore, the requirements for textile coating ink are becoming higher and higher, and the raw materials for the production of textile coating ink are bec...
What is a peelable resin? Strippable resin is a special resin material with strippable properties (also known as removable film resin). It is often used in the preparation of protective films for electronic products, packaging of semiconductor devices, etc., which can protect these products more intact, and it is easy to peel off when it needs to be replaced or disassembled. When prepari...
As an important material for printing, ink is composed of resin, pigment, filler and auxiliary. Due to many industries such as books, packaging, construction, and circuit boards, with the gradual increase in social demand, the use of ink is also increasing. However, in the production and use of ink, due to the addition of surfactants, equipment stirring operation and environmental changes will cau...
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