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What are the common problems with the box box facing the enamel process?

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What are the common problems with the box box facing the enamel process?

Date of release:2018-08-23 Author:admin Click:

What are the common problems with the box box facing the enamel process?

1. Oxidized starch and water glass glue. These kinds of glue are cheap and have certain viscosity. Therefore, they are still used in some low-end packaging and low-cost manufacturers. However, because such glue has strong alkalinity, sometimes the packaging will be Yellowing, softening, moisture absorption, and brittleness appear, which affects the quality of ink card making and membership card production. It occurs in various types of failures in the production of card and membership cards, so it should be eliminated. Low-grade viscose.

2. Polyvinyl acetate emulsion modified glue, this kind of glue is environmentally friendly adhesive, with high bonding strength and fast drying. It is widely used at present, but the price is relatively high, among which it is also high, medium and low. In general, the higher the price, the greater the strength, the smaller the water content, and the high-grade packaging products generally use such high-quality glue.


In the actual processing and production process, there are generally the following quality problems common to the enamel process:

1. The product has a warp angle. The main reason for this is that there are too many sheets attached, and the glue on the edge of the cardboard is dry and cannot be stuck. Therefore, it is usually appropriate to press 20 sheets.

2. The humidity of the product is too large, especially for the flat card of the gold card. It is mainly due to the poor penetration and dissipative ability of gold cardboard to moisture, while the ordinary flat-adhesive has a higher water content. Therefore, it is usually solved by using quick-drying glue or drying the product in the sun.

3. If the product is tiled or flat, if it is placed in a high humidity environment, it will turn yellow for a long time. Mainly because some manufacturers use a large amount of water-glass glue or starch glue. Therefore, in order to ensure the quality of the products, we should use better quality flat and corrugated plastic.

4. The delamination of the packaged product is mainly due to the insufficient strength of the adhesive. It is recommended to use some regular manufacturers' products, which can ensure the strength, reduce the humidity, increase the stiffness, and improve the quality and grade of the package. .

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