Why Glue Quality Control?
Glue is used to form surface attachments between discreet materials and can be can be used for furniture, plumbing, shoes, books, buildings. It is certainly very important in the society; so important that great care needs to be taken when producing it.
Glue quality control in China should be really robust given that it is used by virtually all the manufacturing firms in the country.
A good number of aspects need to be seriously considered when it comes to glue quality control. These factors need to be checked right from the manufacturing stage of the product.
The material used in manufacturing glue is important in determining the quality of the final product. Glue quality control services must understand the different glue types.
Solvent glues comprise of an adhesive base mixed with a chemical solvent that makes the glue spreadable. Water-based glue uses water as a solvent (instead of chemicals).
Animal hide glues are useful for woodworking and veneer work, while cynanoacrylate glue (usually referred to as C.A) which is typically the newest and strongest of modern glues, is made from synthetic polymers.
Since glue is adhesive, it glue must be reliable enough to stick to the surface and not easily come off. Glue quality inspection must therefore be carried out to be sure that the product works as it should.
It is important to note that the polymerization of monomers in glue production is a universal reaction; it spreads throughout the amount of glue put on a surface so that by the time the reaction has ended, there is no glue left unpolymerized.
Careful glue production checks should therefore be carried out to avoid any flaws in the manufacture process. Should flaws occur, they could quite some damage in the manufacturing industry in China.
Quality Control of Glue Mixing
Glue quality control check services must place great emphasis on the duration of the mixing. Ethyl cyanoacetate (C.A) is the initial ingredient in glue manufacture used to create the polymer.
Mixed with formaldehyde in a lined kettle with revolving blades, the two chemicals combined, trigger condensation that produces water. After the water evaporates, what is left is the polymer.
The amount of the mixture placed at each stage is something which must be constantly inspected. The temperature of the mixture should not be neglected by glue quality control services, and they should be ready to adjust the machines in the factory if necessary to avoid errors.
Hardening is an important aspect which must be taken into serious consideration by glue factory check services.
When glue gets in contact with moisture, it has the tendency of beginning to harden. And when this happens, the little space left by evaporation is filled with a non reactive gas like nitrogen.
Quality Control of Packaging
If you are a glue manufacturer or importer, you should understand that its packaging is different from any other. Glue quality check services must ensure that the product does not harden.
They could at this point insert some additives to reduce the viscosity of the glue. Glue packaging must be well inspected. Glue manufacturer evaluation services must pay close attention as the glue is added into tubes using conventional methods or humidity free techniques.
Once a tube is filled, quality inspectors must see that the top and bottom of the tube is crimped properly. Some metal tubes are known to react poorly with cyanoacetate (C.A). Glue quality control services could as a result, look for alternatives like plastic material such as polyethylene or aluminum tubes.
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