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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 ...
Adhesives with water (inorganic solvent) as the solvent/carrier are called water-based glues, solute (glue) can be dissolved in water/or dispersed in water,Water-based glue can be miscible and dispersed in water, diluent is water. Adhesives with organic solvents as solvents/carriers are called oil-based adhesives (solvent-based adhesives). Oil-based adhesives are not soluble in water and cannot be...
◆ 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 ...
Color material gives printing rich and colorful colors,Connecting material as the carrier of color, also as a binder to make the color fixed on the substrate surface; Fillers give the ink the appropriate properties, so that the ink to meet the printing process of printing suitability.Ink should have a certain fluidity, and meet the requirements of the nature of various printing processes, can be q...
As the composition of waterborne UV curing ink china-africa photosensitivity, pigment and absorb UV light initiator competition, to a great extent, it affected the curing characteristics of the UV curing system in the system Due to the pigments can absorb part of the radiation energy, it will affect the light initiator for the absorption of light, and, in turn, affect the ability to gene...
Composition of pressure sensitive tape 1.Pressure sensitive adhesive, 2.substrate 3.Primer 4.Back treatment agent 5.Isolation paper The main components of the pressure sensitive adhesive and resin, including rubber such as polyacrylic acid ester or polyvinyl ether, homogeneous base material requirements, small scale and good to solvent invasive, including, (1) fabric such as cotton, glass cloth or...
First, pour the glue on the flat glass to observe its rheology, and wiggle it to observe its rheology,If the flow of glue is too fast, it means that the glue is too thin and poor, and too thick is not conducive to bonding. Secondly, with a hand dip to observe its viscosity if you can slowly draw, a little sticky hand is better. Then, pour it on a small piece of glass to observe its film forming ti...
The bonding effect can be achieved by applying pressure for a short time (non-aqueous solvent heating) It overcomes the solvent volatilization and drying time needed during the operation of structural adhesive, and can improve the working environment After stripping, it can be corrected without contamination and can be reused for many times Easy to operate, can greatly improve the production effic...
Waterborne Acrylic Resin Product Description: The water-based acrylic resin is made of acrylic acid and acrylate monomer through solution polymerization. Product purpose: This product can be used for water-based aluminum foil gloss and ink, water-based gravure printing paper gloss and ink, water-based carton ink manufacturing Product features:alcohol water as the main solvent, has no smell, no tox...
Water-based ink is composed of resin (water-soluble resin colloidal dispersion emulsion polymer) aqueous amine (mainly ammonia) pigment (organic pigment inorganic pigment) and additives.The so-called water-based ink is mainly water as a solvent by scientific processing, compared with other printing ink, water-based ink, because it does not contain volatile toxic organic solvents, so in the printin...
Water-based flexible printing ink is made of water-soluble pigment and water-based additives by a series of process grinding.Flexo water-based ink is suitable for printing various plastic woven bags, plastic handbags, non-woven bags, paper labels, kraft paper bags, corrugated paper, etc.It is non-toxic and odor free, it is not only environmental protection and safety but also can save 30% of the p...
Water-based adhesive is a one-component pressure sensitive adhesive of self-crosslinking acrylic ester at room temperature. It has adhesion to wood, PVC, metal, glass board and so on. It is suitable for wood skin, OPP tape, double-sided tape, aluminum foil tape and self-adhesive trademark paper. performance index Composition: acrylic polymer Solid composition: 55% 2 Viscosity: 6000 CPS/25 Crosslin...
Pigment is a white or colored fine powder substance which is generally insoluble in water, oil and solvents (some pigments are soluble), but can be evenly dispersed in water.Pigment and film forming material solution mixed on the surface of the material, can form a covering ability of various colors of the paint layer in wood products coating or finishing process, pigment has three functions. It i...
The difference between water-based gravure printing ink and other printing methods mainly lies in: its printing plate through corrosion or engraving, the formation of a lot of plate surface of different volumes of concave hole, known as the ink hole.The ink hole volume is large, the amount of ink filling in the printing process is large, and the ink layer thickness is transferred to the substrate....
Automobile seal strip is one of the important parts of the automobile, widely used in doors, Windows, body, seats, sunroof, engine case and trunk and other parts, with waterproof, sealing, sound insulation, dust, antifreeze, shock absorption, heat preservation and energy saving important role.The rubber flocking seal occupies a very important position in the automobile seal system. The rubber floc...
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