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Self Adhesive Labeling Machine：A Powerful Assistant for Efficient Labeling

2025-07-25

1. Working Principle

The working principle of a self-adhesive labeling machine is based on the peeling and pasting process of labels. Usually, a roll of self-adhesive labels is installed on the unwinding wheel of the labeling machine, and a set of rollers controls the conveying and tension of the labels. When the product is conveyed to the labeling position, the sensor detects the arrival of the product and triggers the labeling action. Driven by the base paper, the label passes through the peeling plate. Due to the rigidity of the label itself, the front end is forced to separate from the base paper, ready for labeling. At this time, the labeling wheel evenly and smoothly applies the label that has separated from the base paper to the product surface, completing the labeling process. Different types of self-adhesive labeling machines may differ in the installation position of the labeling device, the conveying method of the product, the positioning method, and the form of labeling, but the basic principles are similar.

2. Scope of Application

Self-adhesive labeling machines have a very wide range of applications, covering almost all industries that require product identification.

Food and Beverage Industry: In the food and beverage industry, self-adhesive labeling machines can be used for bottle labels and cap sealing labels of bottled beverages, production date and barcode labels of various food packaging bags, and circumferential labeling of canned food, etc. Whether it is PET plastic bottles, glass bottles, aluminum cans, or carton packaging, the equipment can ensure that the labels are flat and firm, without wrinkling or edge warping.

Pharmaceutical and Daily Chemical Industry: The pharmaceutical industry has extremely high requirements for label accuracy and hygiene standards. Self-adhesive labeling machines have become the ideal choice for pharmaceutical companies due to their non-contact labeling characteristics. From small labels for vials and ampoules, to large-area labels for medicine boxes, and wrap-around labels for hose packaging, they can be accurately completed. In the daily chemical industry, such as the back labels of shampoo bottles, the wrap-around labels of shower gel bottles, and the anti-counterfeiting labels of cosmetic boxes, the equipment's unique traceless labeling technology can ensure the perfect presentation of high-end cosmetic packaging.

Electronics, Hardware and Industrial Products: Industrial products such as electronic components and hardware tools also rely on self-adhesive labeling machines. Parameter labels on circuit boards, specification labels of hardware tools, identification labels of cables, etc., all need to be accurately attached. Self-adhesive labeling machines equipped with high-precision visual positioning systems can ensure accurate labeling of tiny electronic components. For industrial products of different materials such as metal and plastic, there are also special label solutions to ensure firm adhesion on various surface materials. Specially designed industrial-grade label heads can also adapt to harsh industrial environments such as oil stains and dust.

3. Characteristics and Advantages

Efficient Automation: Self-adhesive labeling machines can realize a series of operations such as automatic label feeding, labeling, and label collecting, which greatly improves labeling efficiency. Compared with manual labeling, it is faster, can work continuously, effectively shortens the production cycle, and improves the production capacity of enterprises.

Precise Positioning: Through advanced sensors and control systems, self-adhesive labeling machines can accurately control the position and pasting angle of labels, ensuring that labels are attached to the specified position of the product with minimal deviation. This is particularly important for products with strict requirements on label positions, such as medicines and electronic products.

Strong Adaptability: Self-adhesive labeling machines can adapt to products of various shapes and sizes, whether they are round, square, flat bottles, or cartons, packaging bags, etc. At the same time, it can also handle labels of different materials, such as paper labels, plastic labels, metal labels, etc.

Reliable Quality: The labeling process is stable, and the labels are pasted firmly, which is not easy to have problems such as edge warping and bubbling, ensuring the aesthetics and durability of product identification. This helps to enhance the overall image and brand value of the product.

Clean and Hygienic: Using self-adhesive labels, there is no need to use adhesives such as glue, avoiding glue residue and pollution, and meeting the strict hygiene standards of food, medicine and other industries.

Easy Operation: Modern self-adhesive labeling machines are usually equipped with user-friendly operation interfaces, such as touch screens and buttons. Operators can easily complete labeling tasks by simply setting parameters. The maintenance of the equipment is also relatively simple, reducing the use cost.

4. Model Classification

Flat Surface Labeling Machine: Mainly used for labeling and film pasting on the upper plane and upper arc surface of workpieces, such as boxes, books, plastic shells, etc. There are two methods: rolling pasting and suction pasting, and you can choose according to efficiency, precision and bubble requirements. The rolling pasting method is suitable for pasting large-area labels with high speed; the suction pasting method is more suitable for situations with high precision requirements and small label areas, which can effectively avoid bubbles.

Round Bottle Labeling Machine: Used for labeling or film pasting on the circumferential surface of cylindrical and conical products, such as glass bottles, plastic bottles, etc. It can realize functions such as circumferential, semi-circumferential, double-sided circumferential, and circumferential positioning labeling. According to the structure and working mode of the equipment, there are mainly vertical labeling and horizontal labeling methods. Vertical labeling machines are suitable for labeling small-sized round bottles and occupy a small area; horizontal labeling machines are more suitable for labeling large-sized round bottles, and the labeling process is more stable.

Side Labeling Machine: Used for labeling or film pasting on the side plane and side arc surface of workpieces, such as cosmetic flat bottles, square boxes, etc. It can be matched with round bottle labeling equipment to realize round bottle labeling at the same time. This kind of labeling machine can meet the side labeling needs of products of different shapes and has high flexibility.

5. Purchasing Guide

When choosing a self-adhesive labeling machine, it is necessary to comprehensively consider multiple factors to ensure that you select a cost-effective equipment that meets your own production needs.

Main Functions and Control: Priority should be given to equipment with the "automatic calculation of label length" function, which can effectively make up for the weakness of traditional labeling machines that need to adjust the position of the electric eye or labeling time due to different bottle diameters. At the same time, the equipment should be able to automatically complete the synchronous adjustment of conveyor belt speed, label output speed, label output length, etc., to ensure the stability of labeling quality. In terms of control systems, (PLC + human-machine interface) control systems are preferred. Compared with early single-chip microcomputers, they are more stable, reliable, easy to maintain, simple to upgrade, and can be easily connected with upper and lower stations for online control. In addition, you can also consider adding a visual system to conduct real-time detection, control and alarm on the integrity of printing, the status of characters, and whether the label after labeling is present or complete.

Label Feeding Speed, Printing Speed and Output: When choosing a labeling machine, you should not only pay attention to the labeling output, but also comprehensively consider indicators such as label feeding speed and printing speed. The label feeding speed determines the label length and labeling output that the equipment can handle. You should choose equipment with an appropriate label feeding speed according to actual production needs. For labeling machines used in the pharmaceutical industry, it is particularly important that the labels can be printed with batch numbers in place. Therefore, it is also necessary to consider the printing speed of the equipped printer, and the minimum value can be regarded as the actual labeling production capacity value.

Special Purposes: According to the characteristics and needs of your own production products, choose a labeling machine with corresponding special functions. For example, enterprises that need to label special-shaped bottles should choose equipment that can adapt to special-shaped bottle labeling; for the electronics industry with extremely high requirements for labeling precision, you can choose a labeling machine equipped with a high-precision visual positioning system.

Labeling Quality: Inspect the labeling quality of the labeling machine, including the flatness, firmness, and position accuracy of label pasting. You can learn about it by watching the actual operation demonstration of the equipment or referring to the user reviews. At the same time, it is also necessary to consider the stability and reliability of the equipment in different working environments to ensure that it can continuously provide high-quality labeling effects during long-term use.

In conclusion, as an indispensable equipment in modern industrial production, self-adhesive labeling machines, with their efficient, precise and flexible characteristics, provide strong support for product identification and packaging in many industries. When selecting and using self-adhesive labeling machines, fully understanding knowledge in aspects such as their working principles, scope of application, characteristics and advantages, model classification, and purchasing guides will help enterprises make reasonable decisions according to their own needs, improve production efficiency and product quality, and enhance their market competitiveness.

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