Hot melt adhesives are a mixture of basic polymers, tackifying resins (tackifiers), waxes and antioxidants. In order to improve their adhesion, fluidity, heat resistance, cold resistance and toughness, a certain amount of plasticizers, fillers and other low molecular polymers can also be added as appropriate.

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The development of the hot melt glue industry and the development of the hot melt glue coating tools and equipment industry is synchronized, the two promote each other, cooperate with each other and develop together. Without the innovative development of the hot melt adhesive industry, there would be no development of the hot melt adhesive tools and glue coating equipment industry, likewise, without the innovative development of the hot melt adhesive coating tools and glue coating equipment industry, there would be no rapid development of the hot melt adhesive industry.



With the increase in manpower costs and the rapid development of automated production, as well as the development of the Internet, Internet of Things, robotics and 5G technology, more and more automated production lines are replacing manual operations. Hot melt adhesives are widely used in sanitary products, medical supplies, labeling tapes, printing and binding, food packaging, woodworking homes, beverage packaging, beer packaging, automotive interiors, electronic appliances, electronics, shoe manufacturing and many more. Hot melt gluing equipment has developed rapidly and hot melt gluing machines have become part of automated packaging production lines, bookbinding production lines, nappy production lines, automatic beer and beverage production lines, automotive production lines, mobile phone production lines and other production lines, and are responsible for accurate gluing in the production line, playing a key role.



1. Manual gluing tools:

In the production of light industrial products, in DIY assembly, much of the gluing cannot be achieved in an automated way. In the early days of China's reform and opening up, the manufacturing industry was not well developed and the manufacturing process was not highly automated. Hot melt glue guns, hot melt glue ovens and other manual glue application methods were widely used in the manufacture of Christmas toys, craft flowers, ceramic dolls, telephones, speakers and stereos, packaging and sealing boxes and other products. The actual application requires that the glue gun does not drip, does not pour glue, heats up quickly, the glue furnace can be temperature controlled, the temperature is precisely adjustable, does not fog up and so on, and now all these problems have been solved very well.


2. Hot melt adhesive coating equipment classification:

Hot melt pressure-sensitive adhesive coating equipment according to different elements have a variety of classification methods, commonly used classification methods are the following:
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(1) according to the production scale, according to the size of the production scale, hot melt pressure-sensitive adhesive coating equipment can be divided into experimental equipment, small glue coating equipment, medium-sized glue coating equipment and large glue coating equipment.

(2) According to the relationship between the equipment and the production line, according to whether the coating equipment is on the production line can be divided into off-line equipment and online equipment.

(3) According to the coating process, the hot melt pressure sensitive adhesive coating equipment can be divided into roller coating equipment, (pattern) roller coating equipment, spraying equipment, slit coating equipment, extrusion coating equipment and screen coating equipment.

(4) By the structure of the equipment, according to the characteristics of the structure of the equipment can be divided into single-arm equipment and double-support equipment, etc.

(5) According to the production line products, hot melt glue equipment can be divided into beer and beverage automatic packaging production line glue coating equipment, all kinds of paper box packaging production line glue coating equipment, PET transparent box production line glue coating equipment, sanitary napkin production line glue coating equipment, nappy production line glue coating equipment, sanitary pad production line glue coating equipment, label material glue coating production line glue coating equipment, book binding production line glue coating equipment, composite materials production line gluing equipment, shoe hot melt glue equipment, handbag production line gluing equipment, leather box manufacturing gluing equipment, etc.

(6), according to the type of hot melt glue, there are EVA hot melt glue coating equipment, there are SBC type hot melt glue coating equipment, there are PUR type hot melt glue coating equipment, there are PA type hot melt glue coating equipment, etc.
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The working principle of the hot melt adhesive coating machine is actually very simple, even if we do not have the expertise of the industry, as long as we understand a little knowledge of physics and chemistry, etc., we can easily master, in fact, to put it simply is thermal expansion and contraction. Although the principle of use is not very complicated, but after the emergence of the process, to some of our life production work to bring convenience is really huge, a big feature is the elimination of drying equipment, which not only saves the extra procedures, save the cost of equipment such as dryers, which can be said to be a one-two punch. Another big advantage is the low energy consumption, the melting point of the hot melt glue is not very high. There is a fixed and rapid conversion into liquid. And solid hot melt glue in the usual transport and storage is relatively convenient, these processes and the previous to compare can be said to have incomparable advantages. This is the reason why hot melt machines have been so popular in the market since their introduction.
Since the introduction of hot melt coating machine technology, it has become prevalent in the market with its green concept. The universal application of hot melt adhesive technology plays a big role in our energy saving and environmental protection, so that our national governments are also vigorously supporting this industry, opening up a lot of roads for the industrial development of hot melt adhesive coating machines.

Keeping the amount of hot melt glue applied stable, balancing the curing time of the hot melt glue with the speed of the production line and controlling the temperature of the equipment accurately are the keys to hot melt glue application equipment. The increasing speed of production lines and the increasing quality requirements of consumers have posed a challenge to manufacturers of hot melt glue application equipment. Hot melt glue coating equipment manufacturers can only develop hot melt glue coating equipment that is suitable for future high-speed and refined production lines if they work closely with hot melt glue manufacturers and are clear about the characteristics of hot melt glue. In the future, hot melt adhesive coating equipment will play an important role in the production lines of various light industrial supplies and demand will grow rapidly, with considerable market prospects!

Hot melt adhesive coating machine and other hot melt adhesive machine working principle is much the same, there is a heater, in the process of heating, because of the different thermal conductivity, in the process of use, the temperature of the glue shown on the thermometer may have a certain error with the actual, in the process of use, we can not be based on a one-time reading of the temperature, it is best to measure the temperature in a certain interval of time, many times, in this way, the measured temperature will be more accurate, can be more accurate in our called temperature side, the use of the time will be more convenient.



The current hot melt glue process in China is mainly used in the traditional process of hot melt glue machine, hot melt glue on machine, hot melt glue over glue machine, hot melt glue dispensing machine, hot melt glue coating machine, hot melt glue coating machine, hot melt glue spraying machine and so on. We believe that in the near future, the technology of our hot melt glue coating machine can be taken to a higher level and can compete for more markets in the high-end industry.



Nanjing Sumino Precision Machinery Co., Ltd. specialises in the production of release paper coating machines. The company is committed to creating coating machine lines with uniform coating, high flatness and cleanliness. The company mainly deals with coating machine production lines such as release paper coating machine, optical film coating machine, car insulation film coating machine, water treatment film coating machine, aluminium foil coating machine, dimming glass coating machine, film coating machine, PDLC dimming film coating machine, lithium battery extrusion coating machine, laboratory lithium coating machine, etc.

Company Address:No.11, Mailing Road, Jiangning District, Nanjing, Jiangsu Province
Tel:025-5183 9686/133 9078 0291