Color box packaging molding opening is too large causes and solutions

Color box packaging molding opening is too large causes and solutions

At present, people are not only the connotation of the product quality requirements are high, but also on the product packaging more and more exquisite; on the other hand, the producers are also paying attention to the packaging of their own products, and find ways to improve the level of the product. Therefore, the color box packaging not only to colorful, generous planning, but also requires the carton molding beautiful, four-square rules, indentation line clear and smooth, not burst line.

But in the production process often presents some thorny problems, such as the molding of the carton, the opening part of the opening is too large has always been plagued by enterprises. Drug packaging carton is more so, it is faced with millions of patients, packaging carton packaging low-quality, it directly affects the consumer’s trust in the product; together, the number of drug cartons, small standard, the corresponding processing difficulty. Now combined with their own practical work experience, for the drug carton molding after the presentation of the opening of too large a situation to discuss with peers.

Constitutes the carton molding after the opening of the opening is too large for a variety of reasons, the decisive factor in two aspects:
  1. The reason on the paper (including the use of roller paper, the water content of the paper, the direction of the fiber of the paper);
  2. technical reasons, such as the appearance of the treatment, stencil manufacturing, indentation line depth and collation pattern. If these two major problems can be well dealt with, then the problem of carton molding can be dealt with accordingly. The element of paper is the primary cause of carton molding. As we know, now most of the use of roller paper, some are still imported roller paper, due to the place and transportation problems, the requirements of the domestic slitting, slitting the paper storage time is short, coupled with some manufacturers of capital turnover difficulties, sell now buy now, so most of the slitting of the paper is not completely flat, there is still a tendency to zigzag. If the direct purchase of cut flat paper, the situation is much better, at least it is cut after a certain storage process. In addition, each sheet of paper containing water is necessary to spread evenly, and it is necessary to balance with the surrounding temperature and humidity, or else, after a long time, will also be deformed. If the cut paper stacked for too long, the four sides of the water content is greater or less than the middle of the water content, not timely use or overnight production, the paper will have a zigzag, so in the process of using cardboard, the day of the day cut the day of the use of the day, should not be piled up for too long a period of time, and cause deformation of the paper. Caused by the opening of the carton after molding is too large the direct cause of the fiber direction of the paper is still the decisive factor. Once the opening direction of the carton parallel to the direction of the fibers of the paper, the phenomenon of this opening rise is very significant, due to the paper in the printing process to absorb water, after UV varnishing, polishing, laminating and other exterior treatment, paper in the production process more or less to attack deformation, deformation of the paper due to the appearance and the bottom of the tension is not the same, the paper, once deformation occurs, due to the molding of the carton on both sides has been glued good! Fixed, only to open outward, the phenomenon of opening too large after molding. Craft elements are also important elements of the color box molding opening too large. 1 in the pharmaceutical packaging of the appearance of the general selection of UV varnishing, laminating, polishing and other processes, among them: varnishing, laminating, polishing, etc. After high temperature paper dehydration, water content decreased significantly, and then after stretching, part of the paper fiber brittle, and constitutes the majority of the paper through the appearance of the treatment of the paper will be attacked deformation. Between the water-based machine laminating 300g or more cardboard, paper stretching is more significant, generally 2-3mm, laminating out of the product are some of the phenomenon of inward zigzagging, generally have to artificially calibrate over. Polishing product temperature should not be too high, generally controlled at 80 ℃ or less, after polishing generally to be placed about 24 hours, to be fully cooled products before the next process of production, otherwise there will be a burst line of the situation occurs. 2 in the die-cutting version of the manufacturing process also affects the same carton molding, handmade version of the manufacturing is inferior, the standard, cutting, bending knife all over the mastery is not good, the general manufacturers are basically screened handmade working version and choose the laser cutter model company manufactured beer plate. But sometimes the scale of anti-lock buckle and bump line is set according to the grams of paper, whether the standard of knife line is applicable to all the thickness of paper, together with the depth of the die-cutting line also affects the role of carton molding. Die cutting line is through the die plate and the pressure between the machine in the paper’s appearance of the traces, at this moment the paper fibers will be deformed due to pressure, if the die cutting line is too shallow, the paper fibers are not completely pressed through. Due to the elasticity of the paper itself, when the carton is formed on both sides and folded back, the opening edge of the notch will expand outward, constituting the phenomenon of opening.

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