How to avoid white cardboard gift boxes dark sore defect

1. white cardboard gift boxes manufacturing process common problems - dark sores

The white cardboard gift boxes process is a multi-process multi-step process, due to the long process of white cardboard gift boxes, the control of each step is related to the quality of each product. However, in practice, there are still some problems that affect the smooth production of white cardboard gift boxes.

Through 5 issues, I analyze the common problems in the process of white cardboard gift boxes - high and low angle, dark sores, dewy gray, blistering, embossing. In this issue, we will focus on the defects of white cardboard gift boxes.

2. Dark sore, refers to white cardboard gift boxes in the laminating process

Dark sore, refers to white cardboard gift boxes in the laminating process, there are particulate matter residue in the lower layer of white cardboard gift boxes package material, will white cardboard gift boxes surface local propped up, forming a raised and irregular bubble, like the human skin surface of scabies, very ugly, seriously damage the white cardboard gift boxes. It is very ugly and seriously destroys the flatness and beauty of the surface of the white cardboard gift boxes. To avoid white cardboard gift boxes this phenomenon, there are the following issues need to be concerned about. 3.

3. die-cutting of white cardboard gift boxes

white cardboard gift boxes gray board card in the molding must first go through the die-cutting process, the advantage of die-cutting is the size of stable, no deviation, the cross-sectional surface to ensure vertical smooth, this process plays a key role in the stability of the quality of white cardboard gift boxes, but the disadvantages also appear from time to time, such as die-cutting knife will be used for a long time Blunt knife in the die-cutting, will bring up the impurities inside the gray card card, and then adhere to the surface of the white cardboard gift boxes gray card, generally will not fall off by themselves, and the particles that have not fallen off will form dark sores. To reduce these off impurities and particles, the most effective way is to check the sharpness of the die-cutting knife blade, timely discovery of dull knife and replacement, so that white cardboard gift boxes die-cutting process is always in the best condition, so that the die-cut white cardboard gift boxes can be clean and shiny, paper impurities can be reduced to a minimum.

4. white cardboard gift boxes slotting problem.

white cardboard gift boxes slotting process, the new knife blade is relatively sharp, to ensure that the wall of the V groove is clean, rejects will not remain in the V groove, some impurities will also rotate with the rollers, fall off on their own on the conveyor belt, but when the knife appears blunt state situation, the smoothness of the blade walking will be affected, open the slot and the bottom, there will be stuttering wavy pattern Phenomenon, V slot wall is no longer clean, part of the white cardboard gift boxes boxes gray board card in the dust will remain in the V slot, when the gray board card into the paper receiving table, the dust raised attached to the surface of the gray board card, if not found or not timely treatment, can leave hidden problems. In order to reduce the dust impurities appear, to check the white cardboard gift boxes V slot state, to find out whether the tool is no longer sharp, as long as the white cardboard gift boxes V slot walls appear rough, V slot mouth edge torn lace phenomenon, V slot bottom stuttering ripple, should be timely replacement of the tool or tool grinding, sharp tool The sharpness of the tool can reduce the appearance of white cardboard gift boxes dust.

5. white cardboard gift boxes using the glue has the problem of glue particles

white cardboard gift boxes laminating is the glue through the transfer roller coated on the surface of the package, and then laminated to the gray card box body, but if white cardboard gift boxes glue impurity particles are too much, these impurities will be coated with the glue to the package, this small particles are not easy to be found, only white cardboard gift boxes framing is completed, white cardboard gift boxes surface will only appear protruding round bubble, as long as white cardboard gift boxes round bubble appears can not be saved, can only do scrap processing. For the glue particles propped up dark sores, first of all, the white cardboard gift boxes glue to observe, whether the glue box mixed with impurities; secondly, observe whether the jelly glue block is not fully melted, measure the temperature of the glue, appropriate to improve the dissolution temperature and time, so that it is fully dissolved, while appropriate stirring; finally, the mouth of the glue delivery tube with a filter device, whether it is white glue or jelly Finally, a filtering device is installed at the mouth of the glue delivery pipe, no matter it is white glue or jelly glue, the device can filter the fine impurities and completely meet the process requirements.

6. white cardboard gift boxes laminated paper problem

Some white cardboard gift boxes have to be laminated beforehand. After laminating the double-gum paper on one side, the glue still stays between the paper and the cardboard in a gummed state due to insufficient drying time, and when white cardboard gift boxes are slotted, the glue blends with the paper scraps in the gray cardboard, and the impurities are raised and stay on the surface of white cardboard gift boxes during the movement. cardboard gift boxes cardboard surface, when stacked, impurities stick to the back of the last one, this mixed with impurities and glue of different sizes of particles, after drying firmly adhered to the surface of white cardboard gift boxes gray board card, white cardboard gift boxes outer package material laminated dark sores will appear .

In order to avoid the particles raised, must be in white cardboard gift boxes laminated paper after the completion of drying, drying time of not less than 24 hours in summer, not less than 36 hours in winter, only the water molecules in the glue fully volatilized, white cardboard gift boxes slotting will not have particles raised, white cardboard gift boxes dark sores phenomenon will appear. cardboard gift boxes dark sore phenomenon will not appear.