What is a self-adhesive label?

What is self-adhesive?

To be precise: self-adhesive is a material, also called self-adhesive label material, which is made of paper, film or other special materials. , a composite material with adhesive on the back and silicon-coated protective paper as the base paper. Self-adhesive is a general term for materials with this property. In China, many people confuse self-adhesive with labels/labels. In fact, they are essentially different. In English, there is no word "self-adhesive". There are only label and labeling, which are generally called labels by foreigners. There are many domestic titles. The more common ones are: self-adhesive, label, label, self-adhesive. , self-adhesive, etc.

There are many kinds of self-adhesive materials! Used in different fields!

What is a tag?

The word label originally refers to a cloth belt or strip tied to the hat of a Christian bishop. It is a symbol of power and identification. As early as 1700, Europe printed a label with a They are the first labels for product identification on medicines and cloths. Therefore, strictly speaking: labels are used to mark the classification or content of your goals, such as the keywords you determine for your goals, so that it is convenient for yourself and A tool for others to find and locate their own goals.

Most of the labels in the printing industry are printed materials used to identify relevant instructions for their products, and most of them are self-adhesive on the back, but there are also some that are printed without adhesive. It can also be called a label. For example: most beer labels are glue-free when printed. They are affixed by the manufacturer by brushing glue, and this is also called a label. Therefore, the label does not necessarily have glue. Adhesive labels are commonly known as "self-adhesive labels". The labels mentioned on this website all refer to this type of label

What is the classification of labels? Divided by processing technology:

Flexographic labels: Letterpress printing, also known as flexographic printing, is the mainstream processing method of label printing today. Representative machine models include: Lintec, Xinmin Taiyang , Wanshen, KO-Pack, Gallus, Luo Tie, etc. ． ． ． ． ． ． ． ． ． ．

Gravure label: Gravure printing is the main printing method for plastic film printing today, mainly for the printing of various plastic packaging bags and the printing of peripheral labels for cola, edible oil and other styles (such labels do not have glue on the back) ), not many people use gravure printing for self-adhesive labels, so this website will not go into details.

Silk screen labels: Silk screen labels are mainly suitable for the electronic/machinery industry. Membrane switches are typical products of its technology. The advantages of silk screen printing are thick ink layer, bright colors, concave and convex feeling, and visual impact. Strong. It is suitable for restoring simple lines, color blocks, text and other patterns, and the total number of printing colors generally does not exceed 4 colors. The disadvantage is that the gradient color printing effect is poor and it cannot achieve exquisite multi-color printing effects.

Digital label:

Using digital direct printing technology, no need for traditional film production and plate making. Representative models include: HP Indigo,

Xeikon, VIP Color, a digital label printing machine, can print on special materials such as plastic/paper. It is suitable for short-run, small-volume, and time-sensitive jobs. Digital label printing has huge development potential.

In-mold labeling: refers to a special label paper that is processed with PP synthetic paper on the surface and coated with a special hot-melt adhesive on the back, which is printed and made into a trademark. Use a robot to pick up the printed label and place it in the mold. The vacuum holes on the mold will firmly adsorb the label into the mold. When the raw material of the plastic bottle is heated and droops like a hose, the mold with the label quickly closes, and air is blown into the hose to make it close to the mold wall. At this time, the temperature in the entire mold is still relatively high, close to the bottle body. The prototype label's solid adhesive begins to melt and combine with the plastic bottle body in the mold. So when the mold is opened again, the plastic bottle is formed and the label and bottle are integrated into one. The beautifully printed trademark is firmly embedded on the surface of the product. The label and the bottle are on the same surface. It feels like there is no label. The colorful graphics and text seem to be printed directly on the surface of the bottle, giving people a fresh feeling.

Offset labels: The most traditional printing method, which can only print flat sheets, and mostly paper labels. Plastic label offset printing has many defects, and few companies use it! Generally, paper jobs with a small number of parts are processed by offset printing.

By material:

Paper labels:

The main materials used are: mirror coated paper, molded paper, coated paper, fluorescent paper, aluminum foil paper , synthetic paper, thermal paper, fragile paper, textured paper, kraft paper, suede paper, etc.

Non-paper labels:

Mainly plastic, including transparent/non-paper Transparent PET, transparent/non-transparent PE, transparent/non-transparent PVC,

BOPP, OPP, their commercial names are various, including gold/silver polyester, brushed silver, brushed gold, polyester Light silver, reflective sheet, transparent Tedolon, electrostatic film, laser trademark film, etc.

Electronic tag (RFID tag):

RFID tag usually consists of three parts: reader, tag or RFID card and related antenna. The reader antenna transmits a radio signal to the tag, and the RFID tag receives this signal through its own antenna and uses the energy it gets from the signal to start the integrated circuit chip on the tag. The reader is also composed of an antenna, a signal transceiver and a decoder. Once the chip on the RFID tag is activated, the required reading and writing data operations are performed. The reader can decode the data in the tag chip obtained through the antenna and send it to the host computer for processing.

With the help of computers, radio frequency identification tags have better anti-counterfeiting effects than other means; but in fact, their original intention is not mainly to prevent counterfeiting, but to achieve a high degree of automation in logistics management. At present, the domestic market is not yet mature, and assembly equipment is expensive. We are still looking forward to the development of the market.

Shenzhen Boyizhan Paper Products Co., Ltd., self-adhesive printing factory. Specializing in the production of self-adhesive labels, self-adhesive stickers, self-adhesive printing, crystal glue, glue signs, glue processing, glue stickers, cosmetic labels, wine labels, etc.