Look at the color design of color printing packaging

  Wear resistance of Dalian color printing packaging paper: The strength and toughness of paper are poor. After cutting and grinding indentation processing, there are obvious or recessive cracks on the indentation of the upper part of the color printing packaging. After pre-folding, folding, bonding, pressing and stabilization treatment, the dominant explosion cracks are formed. It is important to understand the performance of various printing machines and the calculation standard of work price, otherwise, high cost may be adopted. The unreasonable printing process will also reduce the quality of printing and packaging and increase the cost.

  When choosing more exquisite printing and packaging materials, we should control the use of leather, cotton, linen, silk, wool and other fabrics, and replace them with tough paper, lacquer paper or lacquer cloth as far as possible. Besides special needs, we should try to avoid using real gold foil as hot stamping materials. All pulp fibers of base paper are made of bleached chemical wood pulp, and the amount of surface pulp is increased, and the coverage of mechanical pulp with lining is strengthened. Degree.

  The neutral alkaline sizing process was adopted to reduce the amount of aluminium sulfate in the pulp and increase the 13H value of the base paper. The experiment proves that the pH value of base paper surface layer is better between 6.5 and 8.0. In order to improve whiteness as much as possible, reduce the amount of fluorescent whitening agent, balance different chemical raw materials to achieve the required color. In order to reduce yellowing of coated white board paper.

  Choosing toner pigments requires not only easy operation, good affinity, but also high sunshine resistance. In order to prevent and solve yellowing phenomenon of coated white board paper, it is almost impossible to use single styrene-butadiene latex as coating adhesive under the requirement of balancing formulation cost and product performance.

  If the color design of color printing packaging is not diversified enough, it will weaken the grade of gifts in a certain form, and give consumers a sense of loss of dignity. Color printing packaging can not only upgrade the grade, but also represent the corporate image and connotation. Therefore, we should make a good choice when choosing its color.