About packaging adhesive
in changchun, changchun German packaging adhesive how Germany and 6 according to the weight of the brackets than add hardener (
Today hardener added amount is accurate right amount, will affect the early stages of the water-based glue then force and heat resistance;
All landowners with pneumatic stirrer, set of mixing time, under the 300 ∽ 500 RPM speed, stirring for 10 minutes.
Search the public number: WPU -
88 China adhesive platform 8 water-borne pressure sensitive adhesive: stick on the tag is not enough, or early attachment is weak;
Vacuum suction plastic: positioning surface bubble, and the early strength is low;
Paper packaging glue: glue machine after become warped outlet, need to bale or weight.
Water-based glue to use plastic containers, do not use metal containers, otherwise it will affect the glue of resistance to yellowing coefficient.
About packaging adhesive changchun Germany 1, clear in pur polyurethane hot-melt adhesive machine, you must first make the hot melt adhesive plate away from the pur hot melt glue barrel and pur polyurethane hot melt adhesive glue barrel with pur hot-melt adhesive machine, after the hot dish out should be in keeping the lift cylinder under the condition of internal pressure, cut off all the power.
Water-based glue because volatilizes slower, must add 5% of waterborne curing agent, and mixing 5 -
8 minutes, mix evenly, add the curing agent of glue must be finished within 4 hours, do not use the next day.
Changchun German packaging glue? 5.
4 have cool and gathering acid amine type hot bright plastic aluminum plating film transfer paper plastic editor coating performance is good, high bonding strength of PH 7.
0 to 8.
0 the health and safety in use process should be tightly covered at any time, in case the glue liquid crust, do not entry should be paid attention to, can not let the child contact antifreeze, will destroy the performance under 0 ℃ storage for a long time operation performance is good, easy to besmear to brush, easy to clean, wet cloth to wipe off the glue PH 5.
5 to 7.
0 by all sorts of acrylate monomer copolymerization of acrylate copolymer and is an important type of resin pressure-sensitive adhesive.
In practical application, a complete emulsion pressure sensitive adhesive formula may have to add antifreezing agent, defoaming agent, fungicide, paste and so on.
In the 50 - water-based glue drying temperature
3-60 ℃, drying time
About 5 minutes.
If it be adhesive content itself to the color no special requirements, it is recommended to use yellow hot melt adhesive, generally speaking, yellow hot melt adhesive is better than white sticky.
Water-based glue cannot add oil curing agent, otherwise easy to cause death glue or glue agglomerate, cannot use.
About packaging adhesive changchun Germany as a result, over the past 20 years, this kind of pressure sensitive adhesive is developing very rapidly, and have replaced the dominance of natural rubber pressure-sensitive adhesive.
5, pur hot melt adhesive machine in the transport and handling process, must always keep pur hot melt adhesive machine is vertical, if inclined handling or transportation will damage the positioning precision of pur hot melt glue machine, may also be damaged pur hot melt adhesive machine.
To thin and uniform, water-based glue coating is too thick, after drying, can clearly see the underlying material, if see is the white layer and the brush glue is too thick.
In addition, emulsifier dosage has a great influence on the stability of the emulsion, in early when the dosage of emulsifier emulsion polymerization stability is poor, prone to demulsification phenomenon, with the increase of emulsifying use, gradually tends to a stable emulsion.
About packaging adhesive changchun Germany 4, clean up the pur hot melt adhesive machine heating platen, workers must wear special high temperature resistant protective clothing, with high temperature resistant gloves, do not make the skin contact with hot melt glue barrel, molten pur hot melt adhesive and hot plate and high temperature parts, to avoid.
Hot melt adhesive main components, namely basic resin is ethylene and acetic acid ethylene copolymerization under high pressure, and combined with viscous agent, viscosity regulator, antioxidant and so on to make hot melt adhesive.
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