Pressure sensitive adhesive three main ways of packaging
Pressure sensitive adhesive is widely used in current life, many hospital tapes are also made of pressure sensitive adhesive.
So widely used, some people can not help but ask, pressure sensitive adhesive is how to pack it?
Is it in a bag or a jar?
Small make up for you to collect, let's take a look:
Pressure sensitive adhesive three main ways of packaging!
Pillow or sausage wrap
1. When the amount of adhesive is large or the melting rate is faster, the melting hot melt pressure-sensitive adhesive can be directly considered to enter the upper open-cover 55-gallon paper bucket coated with silicone anti-adhesion layer or the metal bucket coated with epoxy resin;
2, in the flow of glue in the barrel, the rubber surface and the barrel cover must be kept about 15-20 cm between the distance without glue.
The packing weight of each drum is about 150 to 200 kg.
3, the use of barrel packaging must be matched with a barrel - like glue melting system.
The glue fusion system consists of a disk with a fin-shaped heating device, which is implanted directly into the barrel to keep the space without glue.
The disk will melt the adhesive surface at the same time to press down, will have melted hot melt pressure sensitive adhesive through the gear pump will rubber into the throat tube and the back of the glue equipment.
Pillow or sausage wrap
1. The pillow or sausage packaging is an ultra-thin plastic film with no viscosity on the surface of the hot-melt pressure-sensitive adhesive.
Pillow or sausage packaging there are two common packaging systems on the market;
2. After the strip is cooled, blow dry the strip with the wind, and then tear each piece of pillow or sausage hot melt pressure sensitive adhesive on the strip with two wheels of unequal speed to obtain a single pillow or sausage adhesive.
The packaging machine directly pours the molten hot melt pressure sensitive adhesive into the pre-formed plastic belt mixed with PE/EVA. After sealing, it directly enters the ice water channel for cooling.
As it cools, it forms a single pillow or sausage strip with a non-sticky surface.
The massive packaging
This is the most common way of packing.
When glue flow, the hot melt pressure sensitive adhesive in molten state is directly divided into a pre-folded box, coated with high heat resistance on the separation paper or film.
2, there are also factories will guide hot melt pressure sensitive adhesive glue coated in metal with ptfe or silicone hard disk.
Wait for the hot melt pressure sensitive adhesive to cool after stripping the metal plate, directly or through a paper cut into small pieces, then mold or film packaging.
The usual packing weight is about 10 grams per 500 grams.
Pressure sensitive adhesive packaging method is mainly these 3, each method is to have its own place of application and applicable conditions, but are for the good use of the effect and a long storage time to prepare.
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