Moisture absorption coating for single plastic film label, label and preparation method of label

Abstract

The invention discloses a moisture absorption coating for a single plastic film label, the label and a preparation method of the label. By improving the formula of the moisture absorption coating, ammonia gas and organic amine released in adhesive and moisture in the environment are adsorbed by utilizing a moisture absorption coating layer obtained through the drying of the moisture absorption coating, so that the label is good in drying effect and firm in gluing; moreover, the label also has excellent moisture-proof water resistance and can be iced for a long period of time; the label has higher strength, and is not influenced by transportation and storage; the label has excellent glossiness, is suitable for automatic labeling at a high speed, and meets various printing technologies and innovation requirements.

Description

technical field [0001] The invention belongs to the field of labels, and in particular relates to a hygroscopic coating for a single plastic film label, a single plastic film label and a preparation method thereof. Background technique [0002] With the development of the commodity economy, the added value of the label is gradually increasing. It not only increases the branding of the product, but also reflects the grade and cultural taste of the product. Therefore, the design style of the label is gradually diversified. [0003] Taking beer labels as an example, at present, its printing materials mainly include paper labels (including coated paper, wet strength paper, aluminized paper, laser paper, etc.), aluminum foil and plastic film labels. [0004] Among them, the performance indicators such as water content, curling property, and back water absorption of paper labels directly affect the normal printing and labeling smoothness of beer labels. In addition, paper labels ...

AI Technical Summary

Problems solved by technology

[0005] At present, plastic film labels, especially single-sheet plastic film labels, are mostly provided with a primer adhesive layer on the bottom of the label, and are bonded through the primer adhesive layer and the adhesive brushed on the bottle body. Due to the release of glue in the adhesive Ammonia or organic amines are prone to produce bubbles, resulting in blistering on the label and unsatisfactory labeling effect

Moreover, the cost of the primer adhesive layer is relatively high, it is difficult to degrade, and it will cause secondary pollution to the environment

In addition, when manufacturers recycle bottles and reuse them, quality problems such as residual glue from washing bottles often occur, which not only affects the use of secondary bottle stickers, but also increases the difficulty of operation, and the process is relatively complicated, with low output rate and high cost.

[0006] At the same time, generally beer, food, beverages, etc. are labeled on glass, plastic, and metal substrates. Because they are often in a cold environment, the humidity in the labeling environment is high, and moisture enters. The traditional label using the primer adhesive layer, due to The label is airtight, and it is difficult for wet water vapor to escape, and it is easy to generate air bubbles on the label

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