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Composite flexible packaging industry is thinner, the influence of purity

Published :2012/7/17 17:56:00 | information source:

Thinner purity is not enough, will affect composite composite strength, this point in small businesses often is ignored, investigate its reason, is the purity of solvent testing equipment--gas chromatograph relatively expensive, some businesses reluctant to investment. The role of the thinner is to increase the flow of the adhesive degree, improve spread sex, better coating even, make its glue better and base material happen infiltrates, and if the thinner purity is not high, contain water, alcohol and active substances, will consume part of curing agent, cause in the adhesive agent and curing agent in the actual ratio imbalance, felt down. Thus in the selected solvent, should pay attention to the following three points:

1, purchase, must choose regular, quality guaranteed producers;

2, purchase a barrel after sampling inspection, found to contain water or alcohols active substances, must be banned, only use high purity solvent, to guarantee the composite film has strong stick relay;

3, before the use to visual solvent, requirements must be clear and clean, and if there is pollution problems such as dirty, best filter or further processing.


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