Correct use of self-adhesive labels

1, the preservation method of self-adhesive

(1). Self-adhesive labels should be protected from direct sunlight, moisture-proof, sun-proof, high-temperature and ultra-low temperature.

(2). Self-adhesive labels cannot be mixed with flammable and volatile dangerous goods.

(3). The self-adhesive labels should be packed and sealed with moisture-proof paper or film. The rolls should be stacked upright, and the flat sheets should be stored flat. The height of each board should not exceed 1m, and the goods should be more than 10cm from the ground (wooden board).

(4). It can be stored for one year at 23±2℃ and RH65±5% relative humidity, and some glues can reach two years.

2. Analysis of common problems of self-adhesive labels:

(1). The choice of permanence and removability of self-adhesive label paper According to the performance of adhesives, it can be divided into two categories: permanent adhesives and removable adhesives. (Permanence is generally used in electronic machinery, such as electronic labels, typical: mobile phone battery labels, removability is generally used in food, personal care, etc., such as: wet tissue labels, fruit labels, labels on clothes, etc.) and other products that need to be removed.

(2). The surface of the self-adhesive label paper is attached to the surface of the object because the label processed with the self-adhesive material may be labeled on the surface of various materials, such as glass, metal, cardboard and plastic. And plastics can be further divided into: polyvinyl chloride, high density polyethylene. Tests have shown that different label surfaces have the greatest impact on performance, and we must pay attention to the material of the label surface when choosing.

(3). The surface structure of the self-adhesive label paper and the base material of the label is intuitively speaking, the rough label surface needs the glue with stronger viscosity, on the contrary, the glue with weaker viscosity can be selected.

(4). The surface shape of the sticker base material of the self-adhesive label paper The surface of the sticker base material is divided into flat and curved surfaces. If the surface of the label has a certain curvature (for example, the surface of a medicine bottle with a diameter of less than three centimeters), a surface may be required. The paper has good fit or strong viscosity glue. It is also necessary to choose materials with better flexibility and stretch resistance, such as PVC. The flat surface of the object to be attached is more suitable for the labeling material. If the surface of the object to be attached is uneven, the material will be much smaller than the selected surface.

(5). The cleanliness of the surface of the self-adhesive label paper The self-adhesive material is most suitable for the label substrate with a clean, dry, oil-free and dust-free surface. (When labeling, it is necessary to keep the surface of the sticker dry, free of oil and dust, so as to achieve the best labeling effect. If the surface cleaning is poor, it will first affect the stickiness of the self-adhesive label paper) .

Correct use of self-adhesive labels

Adhesive labels are often seen in many product packaging. In addition to identifying the properties of the product, you can also see the product’s combined ingredient content, etc.

Before using different types of sticker stickers, it is very important to test the type of adhesive to see if the adhesive is self-adhesive, heat-sealed or glued paper. Some adhesives chemically react with certain substances. For example, under certain conditions, self-adhesive labels used as signs can stain some special fabrics. Some labels that require a short viscosity will develop a persistent viscosity under exposure conditions. On the other hand, some labels that require long-lasting tack will lose tack on certain surfaces.

Problems often arise when using self-adhesive stickers and other labels on the surface of recycled paper. There are many different papers in the process of cyclic processing, and some papers can be contaminated with silicon or wax coatings, so mixed processing can contaminate the final recycled product. Adhesives tend to lose their effectiveness when labels are applied to these contaminated recycled paper surfaces. NOTE: The purpose of the silicone coating in the self-adhesive label is to ensure that the self-adhesive can easily come off the liner.

The problem of too low temperature occurred. The low temperature reduces the bonding speed and the label may peel off the surface before the adhesive sticks to the surface. If labels are not stored properly—with large ambient temperature differences, fluctuating humidity, or improper placement—the labels quickly lose their viscosity, and one of the main factors that also contributes to self-adhesive labels is the proper peeling of the adhesive from the surface of the liner.

Reminder: Many people mistakenly remove from the left and right corners of the label, which will weaken the viscosity of the dry glue in the contact part, but also destroy the surface fibers in the material, causing the label to curl. The proper way to stick a dry glue label sticker is: keep the label as straight as possible, and peel the backing paper from the center of the top or bottom to ensure the label adheres well to the surface of the object.

Self-adhesive label is a very common and practical advertising label, Hangzhou Sinoco Industry Co.,Ltd in order to meet the brand upgrade and customization of general packaging, if you do not want to meet unscrupulous manufacturers, you can contact us, we will be happy to At your service, look forward to cooperating with you, thank you!