RUIAN LOYAL MACHINERY CO., LTD.
RUIAN LOYAL MACHINERY CO., LTD.
Mobile:+86 183 6775 0188 Tel: +86 0577-65652602 , +86 0577-58823960 E-mail: ly@lyslitter.com, 
Our Services
  • How does the Adhesive Slitter Rewinder Machine Save Working Time? 2017-09-01 The adhesive slitter rewinder machine consists of a rack, a raw material mechanism including air expansion shaft uncoil, rectifying mechanism, regulating wheel and oil pressure material handling devic...
  • HCS Overhead Path Slitting Rewinding Machine for Labels and Film 2023-12-16 The upgrade version of the HCT slitter is presented to you this time."HCS Slitting Rewinding Machine" is a newly innovated model based on the HCT series.The HCS model,adopts the overhead path, ensurin...
  • How to Solve the "ink drop" in Label Printing? 2022-07-09 Due to the thicker ink layer in letterpress printing,it is more prone to printing ink drop. What are the common causes of “ink drop” in printing?1. Material Surface TensionPrinting materials have su...
  • LABELEXPO EUROPE 2022 Exhibitions 2021-11-05 Bring the latest innovation label converting equipment!Ruian Loyal Machinery Co. will attend the LABELEXPO EUROPE 2022 in Brussels on 26-29th April. Booth number: 5D50 (Hall 5, Stand D50 ),Warmly welcome...

How to Avoid Self-adhesive Labels' Glue Overflow After Die Cutting? How to Avoid Self-adhesive Labels

Adhesive overflow is one of the most common problems of self-adhesive labels, which can easily lead to label appearance defects, print contamination, poor peel, etc.. Therefore, it is particularly important to identify its cause, and develop appropriate solutions.

1. Correct choice for the die cutting environment

Adhesives for self-adhesive label materials are acrylic resin and rubber-based resin, both of which belong to pressure-sensitive adhesives. It is easy to deform under the influence of high temperature, high humidity and pressure, etc. Excessive temperature will make the fluidity of the adhesive greatly increased, especially in summer and rainy season. In addition, the amount of adhesive coating also may cause adhesive overflow, such as tire labels with relatively large amount of adhesive coating, more likely to overflow adhesive.

Therefore,in the summer, the workshop should maintain the appropriate temperature in the production of self-adhesive labels. Generally speaking, the temperature of the label processing and storage environment should be controlled at 23°C ± 3°C and the relative humidity should be controlled at 55% ± 5%.

2. Quality controlfor die-cutting machinery

When die cutting self-adhesive labels, the blunt edge of the knife will cause the label adhesive to flip and squeeze, resulting in overflow of adhesive on the edge of the label during die-cutting. Therefore, you must use a sharp knife for die-cutting.

 

In addition, the die-cutting pressure will also have a certain impact on the overflow of glue. Strictly control the die-cutting pressure. Too large die-cutting pressure will cause excessive extrusion of the label adhesive, while too small die-cutting pressure will cause adhesive wiredrawing in the process of die-cutting, thus forming glue overflow on the edge or surface of self-adhesive labels.

3. Rewinding tension control for self-adhesive label

Excessive rewinding tension will cause excessive extrusion of the label adhesive, and even cause the label to slip on the backing paper, resulting in glue overflow.

Related News