What is a waterproof self adhesive label? What is a self adhesive label?

With the continuous maturity of printing technology and the continuous improvement of hardware operation, self-adhesive printing has been able to integrate waterproof technology. However, in order to achieve a good use effect, we must consider from multiple angles when choosing waterproof self-adhesive printsHere are three areas that need to be measured and compared.

First, according to the different classifications of waterproof self-adhesive printing materials and their respective characteristics. Different types of materials have different printing adaptability, transparency, tearability, softness, stiffness, heat resistance, cold resistance, etc., so it is necessary to consider the use of waterproof self-adhesive printing, such as being used for commodity identification in supermarkets. You should choose paper-based, gelatinous waterproof self-adhesive printing materials.

The label on the product in the freezer or cold storage should be made of a low-temperature resistant face material. At the same time, these must be waterproof.

Water resistance test. Second, selected according to the characteristics of the substrate of the substrate. Waterproof self-adhesive prints and substrates are used together, and in order to make the two seamless, it is necessary to fully consider the characteristics of the substrate or packaging material of the substrate.

For example, the composition of the substrate is different, so the ability to combine with the waterproof self-adhesive printing label is also different, the shape of the substrate is different, and the softness and stretch of the label are also different.

Freeze labels. Third, depending on the environment. For example, the storage environment and transportation environment of the product.

Temperature, humidity should be considered. Temperature range, indoor or outdoor, whether there is direct sunlight, etc. Although waterproof self-adhesive printing has the ability to be waterproof, the adhesion and firmness cannot be ignored.

Huayi Label specializes in dry adhesive label sticker printing。With more than 10 years of experience in packaging and printing management and printing technology, it has reached a high level in the industry, with a good reputation and stable product quality.

A waterproof self-adhesive label is a label paper that can be waterproof.

When it comes to self-adhesive labels, there may not be a few people who understand what this is all at once, but when it comes to the word label, most people can say a rough idea. The label is nothing more than a small piece of paper used to indicate the name, quantity, specification, production date, instructions for use, manufacturer, factory address, **, related patterns, etc. As a result, you can often see good product labels, defective product labels, finished product labels, product labels and other small labels on the production line in the factory.

This is the raw material label, processed product label, finished product label, inventory management label, and so on. It seems that my common business cards, including psoriasis on telephone poles, walls, kiosks, fences, etc., are also a kind of label. Even the driver's license, ID card, admission ticket, etc. can be said to be a kind of label.

Self-adhesive labels, also known as self-adhesive labels, timely stickers, sticky notes, pressure-sensitive paper, etc., are composite materials made of paper, film or special materials, coated with adhesive on the back, and coated with silicon liner as protective paper, and become finished labels after printing, die-cutting and other processing. When applied, it can be applied to the surface of a variety of substrates with a single touch by simply peeling off the liner and automatically labeling on the production line using a labeling machine. The printing of self-adhesive labels is very different from the printing of traditional printed matter, and self-adhesive labels are usually printed and processed on the label linkage machine, and multiple processes are completed at one time, such as printing, die-cutting, waste discharge, cutting and rewinding.

It can be seen that self-adhesive labels have high requirements for printing process and printing equipment.

Self-adhesive labels are composed of three parts: face material, adhesive and liner paper. A typical self-adhesive label is made up of five layers of painting.

1.Matte writing paper, offset paper labels.

Multi-purpose label paper, used for information labels, barcode printing labels, suitable for high-speed laser printing, also suitable for inkjet printing.

2.Coated paper self-adhesive labels.

The general label paper of multi-color product labels is suitable for information labels of medicines, food, edible oils, wines, beverages, electrical appliances, and stationery.

3.Thermal paper self-adhesive labels.

Suitable for informational labels such as markings and other retail uses.

4.Self-adhesive labels can be removed.

The surface materials include coated paper, mirror coated paper and PET (polyester) and other materials, which are especially suitable for tableware, household appliances, fruits and other information labels. After tearing off the self-adhesive label, the product does not leave a trace.

5.Shredded self-adhesive labels.

It is suitable for anti-counterfeiting labels such as electrical appliances, mobile **, medicines, food, etc., and the label paper is broken immediately after tearing the self-adhesive label and cannot be reused.

6.Thermal transfer paper self-adhesive labels.

It is suitable for printing labels in microwave ovens and computer printers, and requires high-temperature resistance.

7.Chemically synthesized paper labels.

Product labels with important performance such as water, oil and chemical resistance, and information labels for high-end products and environmental protection products.

8.Aluminum foil self-adhesive labels.

The universal label paper for multi-color product labels is suitable for high-end information labels for medicines, food, and stationery.

9.Laser film self-adhesive label ......

Self-adhesive label material, also known as self-adhesive label material, is a composite material that uses paper, film or special materials as fabrics, coated with adhesive on the back, and coated with silicone protective paper as the backing paper. It prevents the prepreg from sticking and protects the prepreg from contamination of the anti-stick paper. Most of them use high-strength whiteboard paper as the base paper, and become self-adhesive after being coated with self-adhesive.

Application: OEM, sticker.

Paper can be divided into: coated paper, special light paper, thermal paper, embossed paper, writing paper, kraft paper, etc., and film can be divided into: PET self-adhesive, PP self-adhesive, PVC self-adhesive, PE self-adhesive, etc. It can also be subdivided into matte silver PET, bright silver PET, pearlescent film, synthetic paper, laser film and so on.

The self-adhesive attached to the bottle is called coated paper self-adhesive label, and the material is coated paper.

Coated paper is generally used for high-gloss colorful self-adhesive printing, and its typical main uses are such as cosmetics labels, pharmaceutical labels, food industry labels and marketing labels, carton outer layer stickers, delivery labels, certificate labels, etc. It should be affixed to the floor plan and simple slope of most boards, including cardboard, plastic film and glassware.

Washable adhesive self-adhesive label The surface material has coated paper, mirror coated paper, PE (polyethylene), PP (polypropylene), PET (polypropylene) and other materials Especially suitable for beer labels, tableware, fruits and other information labels. After washing with water, the product does not leave traces of self-adhesive.

In order to avoid the printing failure of the self-adhesive label caused by the quality problem of the self-adhesive material itself as much as possible, it is necessary to carefully check the appearance quality of the self-adhesive material before printing processing, so that the defects that may cause the quality of printing processing can be found in time before printing.

Check whether the self-adhesive material has burrs, the edge of the roll self-adhesive material is smooth and clean, no damage, is the basis for ensuring the printing quality of self-adhesive labels, therefore, before printing processing, we must carefully check whether the slitting edge of the roll self-adhesive material has burrs, whether it is damaged due to improper storage and transportation, and roll the roll self-adhesive material down 4-5 times, carefully check its slitting edge. Check whether there are cracks on the self-adhesive material. When slitting the self-adhesive material, if the slitting tool is not adjusted properly or the blade is not sharp enough, cracks will appear on the face paper or liner of the self-adhesive material, and the fibers pulled out of the cracks will be stuck by the adhesive.

The occurrence of cracks may be continuous, or random, may appear on one side of the roll self-adhesive material, or both, so before the self-adhesive material is printed on the machine, it may be necessary to carefully inspect whether there are small cracks on the bottom paper and face paper. Then, take a piece of sample paper that has passed the above inspection, peel it off the bottom paper and check again whether there is a crack on the paper and the bottom paper, because the crack is sometimes very small, and can only be found after separating the bottom paper and the face paper. It is important to note that the inks and adhesives can accumulate on the guide rollers of the press during the printing process, which can also cause cracks on the edges of the self-adhesive material.

Therefore, even if printing has already begun, the above problems cannot be ignored. Check whether the slitting end face of the roll self-adhesive material is straight and whether the rewinding tightness is consistent. If the slitting end face of the roll self-adhesive material is not aligned, it will not only affect the registration during printing, but also cause difficulties in waste discharge due to the change of die-cutting position; Inconsistent tightness during rewinding will cause changes in paper tension during printing, and uneven tension will also cause printing quality problems.

Check whether the edges of the self-adhesive material are sticky and whether the liner is leaking silicone. The edge of the self-adhesive material is adhered or some areas of the bottom paper are leaked with silicone oil, which will cause the tissue to break during the waste discharge process and cannot be produced normally. Therefore, before printing, it is necessary to take a piece of self-adhesive material about 1 meter long, peel it off by hand, and see if there are any parts on the edge or other parts that cannot be peeled off smoothly and consistently.

Usually, the edge adhesion of the face paper and the bottom paper occurs on a slitting roll of the whole roll of coated self-adhesive material, and generally only occurs at the outer layer of 7 meters and 10 meters, so if there is adhesion on the edge of the slitted roll self-adhesive material, do not immediately assert that the whole roll of paper has this problem. In addition, it should be noted that lightweight sheets (e.g. 60g m2 and 80g m2) require more force to peel off heavier sheets, and the lighter the paper, the tighter it feels to peel off. Because of this, it is sometimes impossible to die-cut the self-adhesive material selected by the customer in the shape required by the customer, and it cannot be completed at the regular printing speed.

Before using different types of self-adhesive labels, it is important to test the type of adhesive to see if this adhesive belongs to self-adhesive, heat sealant or glued paper. Some adhesives react chemically with certain substances. For example, self-adhesive labels used as signage can contaminate certain special fabrics under certain conditions.

Some labels that require ephemeral stickiness can develop long-lasting stickiness under ** conditions. On the other hand, certain labels that require long-lasting stickiness lose their stickiness on certain surfaces. Self-adhesive refers to the printed matter printed with paper, film or other special materials as the fabric, coated with adhesive on the back, and a composite material with silicone protective paper as the bottom paper.

1. What is self-adhesive label printing and what are the characteristics compared with traditional label printing.

Self-adhesive labels, also known as self-adhesive labels, timely stickers, sticky notes, pressure-sensitive paper, etc., are composite materials made of paper, film or special materials as fabrics, coated with adhesives on the back, and coated with silicon-coated protective paper as the backing paper, and become finished labels after printing, die-cutting and other processing. When applying, the liner can be removed with a single touch to the surface of various substrates, and it can also be automatically labeled on the production line using a labeling machine. Compared with traditional labels, self-adhesive labels do not need to be brushed, pasted, dipped in water, and have no pollution, which can save labeling time and be easily and quickly applied in various occasions.

Different fabrics, adhesives and liners can be processed into various types of labels, which can be applied to materials that are not capable of general paper labels. It can be said that self-adhesive labels are a type of label.

2. When was the self-adhesive label material invented, and what is the history and current situation:

Self-adhesive label materials were invented by the American, Stanton Alley. It started by hand, and later, Mr. Avery invented a coater and label production equipment and began to mechanize production. Self-adhesive materials are a huge challenge to traditional label materials and a revolution in the field of labels.

Since then, self-adhesive material technology has spread rapidly around the world. Some have built factories to research and develop a variety of different kinds of label materials. The history of the development of self-adhesive materials is also the history of the development of science and technology in this century

Fabrics are mainly paper-based and develop into a variety of materials and special purposes, such as synthetic materials, anti-counterfeiting materials and transfer materials.

Adhesives: from solvent-based and hot-melt adhesives that pollute the environment to water-soluble emulsion adhesives that do not pollute the environment.

Coating technology: There are a variety of coating methods, and the current development direction is from the traditional roller coating, scraper Xu cloth to high-pressure cast coating, in order to ensure the uniformity of coating to a greater extent, avoid the generation of bubbles and needle eyes, and ensure the quality of coating.