Random talk on the hottest self-adhesive label mat

2022-09-23
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Random talk on self-adhesive label materials

self adhesive labels are widely used in all walks of life because of their convenient use. Judging from the market of self-adhesive labels in China in recent years, the consumption of self-adhesive labels is growing rapidly and has great market potential. At present, with the continuous expansion of application fields, the requirements for the performance of self-adhesive labels are also developing in the direction of complexity, diversity and high refinement. This article mainly talks about various self-adhesive label materials and their applications

first, the structure of self-adhesive label material

self adhesive label material is basically composed of three elements: surface substrate, adhesive, anti sticking paper or anti mucous membrane. According to the purpose and purpose of use, there are many kinds of three elements. Through different combinations, label materials that can meet a variety of different performance requirements can be produced

1. Adhesives

according to whether the label is permanently affixed to the commodity or product or must be removed after being affixed, or it is expected that the label must be affixed again after being removed in a short time, adhesives can be roughly divided into three types: permanent adhesion (strong adhesion), re uncovering (weak adhesion) and heavy adhesion. When using, it can be selected from many varieties according to the types of surface substrates and substrates and the use requirements (such as cold food, water resistance, heat resistance, etc.). Adhesives are classified according to their principal components and forms. Adhesives can be divided into the following types (as shown in Figure 1, the non machined surface of the base is painted without flow marks); According to the functional classification, adhesives can be divided into the following types (as shown in Figure 2)

1: emulsion type

a propylene type

2: solvent type

advantages: excellent weather resistance, heat resistance, oil resistance and other properties, it is a rubber type suitable for wide applications

1: emulsion type

can't have slip phenomenon

adhesive B rubber type 2: solvent type

3: hot-melt type

advantages: for polyethylene that is not easy to paste Polypropylene adhesive can give play to its advantages

C special adhesive silicone adhesive and other

advantages: it has heat resistance Adhesive type with excellent moisture resistance and weather resistance

a permanent bonding (strong bonding) type advantages: suitable for permanent bonding

adhesive B re uncovering (weak bonding) type advantages: suitable for the purpose of uncovering after sticking for a certain period of time

c heavy bonding type advantages: suitable for pasting the removed label again

2 Anti sticking paper, anti mucus

anti sticking paper, anti mucus anti sticking, surface smoothness, warpage resistance, dimensional stability, die cutting suitability and other characteristics are of great importance. In addition, some companies (such as Japan's Lintec company) can also produce self-adhesive anti sticking paper that is convenient for waste paper recycling without polyethylene coating

3. Surface substrate

in order to improve the added value of goods and carry out reliable product management, when selecting label materials, the most important thing is to correctly select the surface substrate of labels. It should not only meet the requirements of color, texture and pattern, but also meet the conditions of heat resistance, weather resistance, water resistance and so on. In addition, the surface substrate should also meet the requirements of diversified printing and printing methods. There are many kinds of Jinan experimental machines

the requirements for the performance of label materials are as follows: inking, ink coloration, dimensional stability and smoothness are required during printing processing; During die cutting, dimensional stability, tensile strength, appropriate peeling force, uniformity, cushioning, glue breaking, waste discharge, etc. are required; When labeling with an automatic labeling machine, it requires tensile strength, appropriate peeling force, photocell adaptability, etc

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