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Laminated oil magnetic cards, Identification Card and other cards used in water-based adhesive. The card is both a document and a form or carrier of the document's existence, although it has entered the 5G era,Many things exist in electronic form, such as electronic balance cards, electronic driver's licenses, electronic health care cards, etc.But the physical card such as id card bank card is als...
Printing mucilage requirements The requirements of printing mucilage for manual plate printing Manual table printing is to press the screen on the fabric of the table for manual scraping, and the pressure extrusion on the scraper will print the glue through the mesh hole of the pattern part to the fabric. The shear stress of the binder is small, so thePrinting mucilageis required to have good...
Solvent selection In the printing ink manufacturing process, considering the overall solvent system of the volatile ladder, improve the printing ink solvent release and reduce printing solvent organic solvent residue, the solvent used is often a mixture of several volatile solvents. In the printing ink manufacturing process, the main organic solvents are toluene butyl ketone cyclohexanone ethyl ac...
On January 26, 2022, SINOGRACE Chemical Co., Ltd. will hold the year-end summary meeting and annual convention, and wish everyone a happy New Year.
Food packaging is divided into ordinary packaging and high-performance packaging, the corresponding waterborne polyurethane adhesive can be divided into four categories: general use, steaming boiling, transparent cooking, aluminum foil cooking.Usually such adhesives are two-component solvent-based polyurethane adhesives, the main agent is polyether or polyester polyol After the aromatic isocyanate...
When waterborne polyurethane is used as adhesive, it must be mixed generally. Based on waterborne polyurethane, crosslinking agent, thickening agent, filler, plasticizer, pigment and other additives can be added. Other types of waterborne resin and water can be added.In order to obtain higher resistance to water Heat resistance and bonding strength, at present a lot of waterborne polyurethane syst...
Waterborne polyurethane adhesive is a kind of high-grade adhesive, with excellent flexibility, impact resistance, chemical resistance and wear resistance, the most important is its low temperature resistance.It has adsorption and chemical bonding effect on many kinds of materials. It can not only bond porous materials, but also bond smooth surface materials. It is widely used. Polyurethane adhesiv...
The most important application indexes of water-based adhesives in the packaging and printing industry mainly include four aspects: bonding strength, high/low temperature resistance, moisture resistance and viscosity holding.In practical application, defects such as weak adhesion and brittle degumming film are basically caused by the above four application indicators are not up to standard.In prac...
Water-based adhesives are environmentally friendly adhesives made of natural or synthetic macromolecule as adhesives and water as solvent or dispersant instead of toxic organic solvents that pollute the environment.Existing water-based adhesives are not 100% solvent-free and may contain limited vocs as additives for their aqueous media in order to control viscosity or fluidity.Advantages are mainl...
Water-based plastic composite ink is a product with water as the solvent. From the perspective of printing mode, water-based ink is not suitable for offset printing at present. Its main application fields are flexographic printing gravure printing and screen printing. Printing costs are related to the raw materials selected by ink manufacturers, such as the size of the molecular weight of the resi...
From the development of printing industry in developed areas of the future development track can be considered in China's packaging and printing industry to take the road of environmental protection is an inevitable trend, and the environmental protection of ink plays an increasingly important role.Although the stage has not yet established green ink or environmental protection ink discrimination ...
Water-based ink resin is suitable for intaglio printing ink. The ink coating prepared with this product has good film forming ability, quick drying, high gloss, high hardness and scratch resistance, good film forming ability on the surface of paper foil and good compatibility with water-based pigment. Application characteristics 1 Good film formation 2 Suitable for a variety of substrates, good ad...
With the continuous enhancement of human awareness of environmental protection, environmental laws and regulations are constantly introduced and improved all industries are working together in the direction of environmental protection, green and health.With the development of flexible packaging industry, it has become an inevitable trend to reduce and remove organic solvents used in compounding.Wa...
Acrylic pressure sensitive adhesive is a large range, PUR is one of them, most of the acrylic pressure sensitive adhesive is heated operation, can be reheated after bonding, is reversible.And PUR is wet reaction acrylic pressure sensitive adhesive, heating operation, after bonding and moisture in the air reaction, after the reaction is irreversible (that is, heating will not melt). So PUR is more ...
◆ The procedure of bonding process:◆ The adhesive surface should be evenly coated to ensure infiltration, as far as possible to avoid bubbles, due to the porosity of the adhesive strength greatly reduced, resulting in degumming.Attention should be paid to the alignment of the position, not staggered, can be pressurized, air exclusion, make it close contact. Time is three important parameters of cu...
The chemical composition of glue, the polymer in the water environment glue (vinyl acetate in white glue is a kind of petroleum derivatives) are round particles, the radius of the general particle is between 0.5~5μm.The bonding of objects is achieved by the tension between the polymers in the glue.In the glue, water is the carrier of the polymer, and the water carries the polymer slowly into ...
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