Glue opening phenomenon of box gluing machine

Why do many packaging and printing enterprises often burst boxes and have glue opening phenomenon of box gluing machine and after pasting boxes, causing great losses to enterprises. But there is no good way to eliminate and reduce! Because printing enterprises do not fundamentally find out the causes, quality accidents continue to occur. Based on our perennial contact and research on the front, middle and rear processes of carton machining, let’s explain why the glue opening phenomenon of box gluing machine sometimes occurs after the box gluing machine pastes the box?

一.There are probably the following reasons for box bursting and glue opening phenomenon of box gluing machine: improper operation >  inaccurate selection of glue type > the user has no experience and awareness to prevent box bursting > problems with key raw materials such as paper and film > the user does not understand the technical parameters of coke water.

二.Solutions to the glue opening phenomenon of box gluing machine

Improper operation can be improved from the following aspects.

1.Pay attention to the glue amount.

The glue amount is small and can not be effectively bonded. For thick paper and boxes with large rebound force, increase the glue amount based on the standard that the glue is not extruded.

2.Insufficient pressure

To increase the pressure, use a mechanical flattening or air cylinder flattening machine. For uneven wine boxes and special-shaped boxes, pay attention to 5-10 positive and negative positions for flattening and packaging, so as to make them in effective seamless contact.

3.Glue delamination

Customers should fully stir before use, because the raw materials of glue have different specific gravity, and precipitation and stratification will occur after long-time storage.

4.Glue selection is very important, and scientific use is the key

No glue is omnipotent, so you must select and use glue scientifically, such as film coating, polishing, UV, kraft paper, freezing, gold and silver card, double-sided film coating, medicine box, etc. select the appropriate glue according to the product attributes.

5.The operators and managers of the factory have no awareness of risk prevention, which is easy to cause a large number of box explosion.

It should be noted that small batch tests should be carried out before mass production to achieve quality process control, prevent box explosion risk and take preventive measures. In particular, small tests should be carried out for new materials, different batches of raw materials and new process products.

6.Problems with key materials such as paper film

There are many varieties and specifications of paper and film. This printing industry is also one of the materials commonly used in large quantities. Its quality directly affects the entire color box, and it is relatively easy to neglect and difficult to inspect the raw materials, so take the following measures to prevent.

(1)Procurement of double-sided corona light film from film supplier, requiring dyne value 36-38, or install a plasma processor on the box gluing machine. The surface roughness of the matt film has a dyne value of 36-38. The base rate of the matt film is very small.

(2) Use scotch tape to detect whether the paper has fallen powder, and whether the paper coating has fallen powder.

(3) Use scotch tape to check whether the printing and glazing is firm.

(4) The technical parameters of the glue must be clearly grasped.

(5) High temperature resistance of adhesive.

(6) Low temperature resistance of adhesive.

(7) Aging resistance of adhesive.

(8) Application scope of adhesive.

(9) Storage conditions of adhesive.

(10)Characteristics and environmental protection index parameters of adhesive.