Accurately speaking, self-adhesive is a kind of material, also called self-adhesive label material, which is a composite material with paper, film or other special materials as the fabric, adhesive coated on the back and silicon-coated protective paper as the backing paper. Self-adhesive is a general term for materials with this characteristic. In China, many people confuse stickers with labels. In fact, the two are essentially different. There is no word "sticker" in English, only labels and labels (or labels). Generally, it is called label abroad, and it is called various at home. More common are: stickers and labels.
There are many kinds of adhesive materials! Used in different fields!
What is a label?
The word "label" originally refers to the cloth belt or strip tied on the bishop's hat of Christian leaders, which is a symbol of power and status. As early as 1700, Europe printed the first batch of labels used on medicines and fabrics as commodity identification. Therefore, strictly speaking, tags are used to mark the classification or content of your goals, such as the keywords you set for your goals, so that you and others can find and locate your goals easily.
The labels referred to by the printing industry are mostly printed materials used to identify the description of their products, most of which are printed with glue on the back, but some of them are printed without glue, which can also be called labels. For example, most beer labels are printed without glue, which is also called glue-brushing label by manufacturers, so the label is not necessarily glue, and the label with glue is commonly called "self-adhesive label"
Classification of labels? According to the processing technology:
Flexo printing label: Letterpress printing, also known as flexo printing, is the mainstream processing method of label printing today. Representative models are: Lindecke, Xinmin Sun, Wan 'an, KO-Pack, Teras, Luotie, etc. ............
Gravure label: Gravure printing is the main printing method of plastic film printing today, which is mainly used for printing various plastic packaging bags and peripheral labels of cola, cooking oil and other styles (there is no glue on the back of such labels), and there are not many gravure self-adhesive labels, so this website will not go into details.
Screen-printed labels: Screen-printed labels are mainly used in electronic/mechanical industries, and membrane switches are typical products. The advantages of screen printing are thick ink layer, bright color, concave-convex feeling and strong visual impact. Suitable for restoring simple patterns such as lines, color blocks and characters. , and the total number of printed colors generally does not exceed 4 colors. The disadvantage is that the printing gradient effect is poor and the exquisite multi-color printing effect cannot be realized.
Digital label:
The use of digital direct printing technology does not require traditional film production and plate making. Representative models are: HP HP Indigo,
Saikang, VIP color and digital label printing machines can print on special materials such as plastic/paper, and are suitable for live parts with few short editions and short time. Digital label printing has great development potential.
In-mold label: refers to the special label paper whose surface is processed with PP synthetic paper and whose back is coated with special hot melt adhesive and printed into a trademark. The printed label is picked up by the manipulator and put into the mold, and the vacuum hole on the mold firmly absorbs the label in the mold. When the raw material of the plastic bottle is heated and droops like a hose, the mold with the label is quickly closed, and air is blown into the hose to make it close to the mold wall. At this time, the temperature in the whole mold is still relatively high, and the label glue stick close to the prototype of the bottle body begins to melt and combine with the plastic bottle body in the mold. So when the mold is opened again, the plastic bottle body is formed, and the label and the bottle body become a whole. The beautifully printed trademark is firmly embedded in the product surface, and the label and the bottle body are on the same side. There is no label in the feeling, and the color graphics and texts are directly printed on the bottle surface, giving people a fresh feeling.
Offset label: the most traditional printing method, which can only print ordinary paper, mostly paper labels. Plastic label offset printing has many defects, which are rarely used by enterprises! Generally, a small amount of paper is solved by offset printing.
By material:
Paper label:
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, cotton wool paper and so on.
Non-paper label:
Mainly plastics, including transparent/opaque PET, transparent/opaque PE, transparent/opaque PVC,
BOPP and OPP have various commercial names, including gold/silver Teflon, brushed silver, brushed gold, polyester silver, reflector, transparent Teflon, electrostatic film, laser trademark film and so on.
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 the signal through its own antenna, and uses the energy obtained from the signal to start the integrated circuit chip on the tag. The reader also consists of antenna, signal transceiver and decoder. Once the chip on the RFID tag is activated and started, it can read and write data as needed. The reader can decode the data in the tag chip obtained through the antenna and send it to the host for processing.
With the help of computer, the anti-counterfeiting effect of RFID tag is better than other means; But in fact, its original intention is not anti-counterfeiting, but to achieve a high degree of automation of logistics management. At present, the domestic market is immature and the assembly equipment is expensive. We are still looking forward to the development of the market.
Shenzhen Boyi Exhibition Paper Co., Ltd. Adhesive Printing Factory. Specializing in the production of self-adhesive labels, self-adhesive stickers, self-adhesive printing, crystal glue dripping, glue dripping signs, glue dripping processing, glue dripping stickers, cosmetics labels, wine labels and so on.