Analysis of the Glueing Process Essentials for Covering World Boxes

The booming market has extended the application of cartons to various fields. In addition to the need to produce beautiful pictures, the production of cartons also requires the processing of lining paper, die-cutting, forming, and facial paper. The quality of each process has a direct impact on the quality of the final product. Therefore, each process is critical. At present, paste processing of many cartons in China is still produced by hand. This article will focus on the paste of the world cover paperboard process points and operational precautions.

Paper

1. Equipment and accessories

The required equipment mainly includes gluing machines and flattening machines; the required accessories are latex.

2. Process points

(1) Check the production order and check the quality of the boxboard paper. The standard water content of the boxboard paper is 12%.

(2) For the preparation of adhesive, the quality ratio of each component is: white latex: water = 3:1.

(3) Gluing the white paper inside, stacking the linerboard on the platen before the gluing machine, and pushing the paper to the operators on both sides according to the speed of the gluing machine by the paper-pulling personnel. Pass the linerboard paper, and then glue the coated paper to align the two rules of the linerboard paper. When the two sides meet the paper, they must cooperate with each other. A slight oversight may cause the paper to break or wrinkle.

(4) Press and flatten the paper in the cardboard of the paper and put it into the flattener. The pressure is set to 20MPa and the time is 5 minutes.

(5) The end of production, self-inspection of quality, inventory of quantities and suspension of production signage, and production of the next process.

(6) Inspection items include: Cleanliness of the paper surface, such as glue overflow, adhesion and cleanliness.

3. Precautions

(1) Note the effect of the adhesive ratio on the flatness of the paper surface, and grasp the uniformity when gluing.

(2) Make sure the paper is flat and in place. Note that the paper cannot exceed the rules of the linerboard.

(3) The formulated adhesive must not be too thin to prevent creases in the paper.

(4) Wash your hands frequently to ensure that the paper surface is clean.

Forming and facial paper

Forming and facial paper are the most demanding and cumbersome processes in the box making process. Only careful and responsible production processes can ensure quality.

1. Equipment, molds and accessories

The required equipment is a gluing machine and a puncher.

The required mold has scraper, auxiliary block, punching die, plastic container, brown brush.

Required accessories are 168 glue, rubber, rubber band, anhydrous ethanol, cotton cloth.

2. Process points

(1) Check production orders and production samples and check whether the materials are qualified.

(2) Make the first inspection before batch production.

(3) Combination box body. Put die-cut board papers on the desk case, and apply evenly the glue on both sides; push the glued cardboard paper on all four sides, press the small edge on the large side, and tighten it with two rubber bands. , The wrong angle of 45 ° stacked on the pallet, self-qualified, hanging signs, to be dried and transferred to the next procedure.
(4) The box body. Spread the box body paper evenly, place the box type exactly in the frame line on the back of the tissue paper, put on the auxiliary block, and bend the four sides down at an angle of 90°; take out the auxiliary block and fold the bleeding edge inwards. , And use a bamboo scraper to scrape the four sides of the box to make it fully bonded; straighten the box, scrape the edges and corners with a thumb; then put on the auxiliary block, and use the flannel to push out the paper from the inside out, if there is glue stains. Use a flannel to wipe with a little ethanol to clean; drain the air to make it tightly combined;

(5) The self-inspection quality is qualified, the world cover is buckled, the quantity is counted and the identification plate is hoisted, and the inspection package is handed over.

(6) Inspection items include: molding effects, adhesion effects, surface cleanliness, such as the flatness of the box body, firmness, cleanliness, and brightness.

3. Precautions

(1) When assembling the box body, the four corners of the box must be tight and seamless, and the four corners and the top must be flush. Excessively relying on the inside or outside will bring troubles to the facial tissue, and the adhesive must not be transferred to the next process. .

(2) When scribing paper, be sure to use a flannel to wipe it and make it stick firmly, and make the surface smooth without bubbles or glue stains.

(3) When scraping with a scraping ruler, the four sides must be scraped in place to prevent the four-corner connector from lifting or wrinkling.

(4) Keep your hands clean and clean the desk to prevent unclean handling of the liner in the smear box.