Five aspects of packaging material knowledge will give you a comprehensive understanding of self-adhesive labels!
The adhesive label is an important embodiment of the company's image and brand, which plays an important role in reflecting the product quality and arousing consumers' desire to buy. Here are five aspects to fully understand the adhesive label
Packaging material knowledge to improve the quality of printed matter and several key points of printing paper
The quality of printed matter depends on many factors, of which the characteristics of paper is undoubtedly an important factor. The paper with excellent performance can complete the ink transfer completely, so that the image and text can be clearly and fully reproduced on the paper, thus obtaining a satisfactory reproduction effect.
How much do you know about the four ways of measuring the color of printed matter?
The purpose of color detection and control is to find out the difference between the actual printing color and the standard proof color, by adjusting the amount of ink supply, so that the printing truly reproduce the original color. The following is a brief description of the four printing color measurement methods,
Regarding the quality of printing materials, these factors should be paid attention to
Printed matter displays its value by imprinting on the surface. Glazing is a processing technology in which a colorless transparent coating is coated on the surface of printed matter and a thin and uniform transparent bright layer is formed on the surface of printed matter after leveling and drying. Glazing can not only enhance the brightness of the printed matter surface, protect the printed text and text, but also will not affect the recycling of paper.
Polypropylene is a thermoplastic resin made by polymerization of propylene. Copolymer PP material has a lower thermal deformation temperature (100℃), low transparency, low gloss, low rigidity, but has a stronger impact strength, the impact strength of PP increases with the increase of ethylene content.
What are the characteristics of PP
1. Crystallized material, small hygroscopic, easy to melt rupture, long-term contact with hot metal easy to decompose. 2. Good liquidity, but the shrinkage range and shrinkage value is large, easy to occur shrinkage hole. Dents, deformations. 3. The cooling speed is fast, the pouring system and cooling system should dissipate heat slowly, and pay attention to control the molding temperature. When the material temperature is low temperature and high pressure, it is easy to Orient. When the mold temperature is below 50 degrees, the plastic parts are not smooth, easy to produce poor fusion, flow marks, and easy to warp and deformation above 90 degrees 4. Plastic wall thickness must be uniform, avoid lack of glue, sharp corners, to prevent stress concentration.