[Precautions for sealing carton with hot melt adhesive for packaging]

Packaging hot melt adhesive mainly refers to the hot melt adhesive used in automatic packaging, bonding the side and seal of the carton. With fast curing, strong initial adhesion, low melting viscosity, easy to flow, has a certain low temperature resistance and high temperature resistance.

Packaging hot melt adhesive is mainly used in the following packaging fields:

1, package sealing adhesion: such as beer, instant noodles, cola, drinks, fruits and vegetables and other can/bottle products carton sealing package.

2, straw paste: such as milk, tea drinks, Vitasay and other paper wrapped with straw paste.

3, paper tray carton adhesion: such as Red Bull, soy milk, cans of drinks, drinking water, etc.

4, carton sealing: such as packaging candy, cookies, frozen food, ice cream with carton, soap box, towel box, etc.

5, other: such as transparent PET box, household appliances, ceramic tile building materials, etc.

Hot melt adhesive for packaging, adhesive technology, field, material, etc., the adhesive performance is different. Guangzhou Jiayan Adhesive Co., Ltd. will understand the requirements of customers in order to provide or develop suitable products. Packaging hot melt adhesive in the carton sealing probably need to pay attention to the following matters:

A, temperature resistance

Hot melt adhesive is more sensitive to temperature. When the temperature reaches a certain level, the hot melt adhesive begins to soften. Below a certain temperature, hot melt adhesive will become brittle, so the choice of hot melt adhesive must fully consider the change of environmental temperature.

B. Operation time

Fast operation is a major feature of hot melt adhesive. The operation time of packing hot melt adhesive is generally less than or equal to 15 seconds. With the wide application of modern production mode -- assembly line, the operation time of hot melt adhesive is required to be shorter and shorter, most of which are about 1 second.

C. Material of the bonded material

The common form of bonding substrate in the field of packaging is: film/film; Film/paper; Paper/paper; Foam/paper; Pearl cotton/pearl cotton, etc. The corresponding type of hot melt adhesive should be selected for different bonding substrates.

D. Bonding strength

The viscosity of hot melt adhesive is divided into early bonding strength and late bonding strength. Only early viscosity and late viscosity as much as possible, in order to make the hot melt adhesive and the adhesive to maintain stability.

E. Color

Because of the adhesion of different products, the product color requirements of hot melt adhesive need to be taken into account: if you need to produce beautiful and clean, then you use white hot melt adhesive, on the contrary, the color of the adhesive object is not required, it is recommended to use yellow hot melt adhesive, because the adhesive is better.