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Guangzhou food-grade plastic industry complaints

by:Sinograce Chemical     2021-02-09
Guangzhou food grade rubber industry complaints guangzhou food grade rubber industry complaints due to the test of synthesis of pressure sensitive adhesive, in the ratio of different materials can synthesize different performance in the case of the pressure sensitive adhesive. At present good quality hot melt adhesive can be used in the field of industrial manufacturing, heat resistance performance and flame retardant performance is guaranteed, the current can reach the quality requirements must be big brand products, such as ke, Moore, focus on the study of the hot melt adhesive, provide customized hot melt adhesive application solutions, wide range of USES, can be applied to new energy, military industry, aviation, shipbuilding, electronics, automobiles, instrument, power supply, high iron, and other areas of the industry. Used by the tool before drying of glue can be used warm water to clean. High purity, low toxicity and excellent weather resistance. Hot melt adhesive is a kind of plasticity strong adhesive, and the adhesive can be adhesive, and a variety of substances can changes with temperature changes in the nature, after curing adhesion, adhesive strength is big, so many industries can use this kind of adhesive. If the adhesive is for ordinary families, the quality is not important. If it is used in the industrial field, requires attention to quality, so how to determine the quality of the hot-melt adhesive? ( 5) Vinyl emulsion dispersion modified isocyanate (can be Or its pre polymers) Organic solution dispersed in the aqueous solution of polyvinyl alcohol, carboxymethyl cellulose food, beverages, instant noodles, basic resin, beer, etc. Packing sealing, mostly using hot melt adhesive sealing machine to complete. 1, can under the professional instrument for testing analyzing the composition of hot melt adhesive, so that we can get the accurate data. General coating concentration control in 20% 16-30%, viscosity It is advisable to 20 seconds. 2, can also be observed in appearance, if the hot melt adhesive glue type, do manual work is coarser, then the quality. Guangzhou food-grade plastic industry complaints should be soft monomer and hard monomer, they modified functional monomer on the composition of interdependence. Composite glue in solvent can cause more bad, bubbles, poor fastness. 3, can put the hot melt adhesive melts tested on tensile strength, tensile strength of hot melt adhesive is not qualified. Guangzhou food grade glue complaints book binding industry have been swept away the old line, binding, using hot melt adhesive technology, not only improve the quality of bookbinding, more important is greatly speed up the binding, which USES hot melt glue technical indicators are as follows: thickness: 0. 1 - 0. 205MM3. No crack, long service life, cold resistant high temperature; Acrylic adhesive silicone type: single-component or two components, can be a solid, is friendly to users. 4, hot melt adhesive, observe whether there is a powdery material after melting, if there are captions powdery material packing, adhesive performance is poor. Because the resin is the main material of plastic tightly adhering, so paint viscosity fastness with the size of the printing ink viscosity, choosing the appropriate viscosity, size of pigment adhesive fastness. Guangzhou food-grade plastic industry complaints is suitable for BOPP, PET substrate transfer of aluminized layer to the paper combined with technical indicators notice if the glue stick on the skin, can clean water and soap. If the printing ink, glue composite viscosity is too small, excessive solvent content in the ink, glue, and resin, pigments and other components are relatively less, so can't form a smooth layer when dry, so white, become dull, lack of gloss.
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