Kraft paper bags manufacturers of essential performance and process knowledge
The development of the packaging industry is bound to run in the form of economic, environmentally friendly burst, so the food packaging industry manufacturers performance requirements performance is also increasingly high. Food quality unqualified phenomenon in China now see a lot, sometimes it is not necessarily the product is unqualified, but lies in the packaging production, such as paper bag production, etc., the paper bag production process is economic, whether or not hygiene, into the quality inspection department is bound to check things.
Want to become a qualified paper bag manufacturers must go through a number of quality checks, if you can pass these quality assessment, then congratulations, such a manufacturer will be judged as a qualified manufacturer, what are the specific assessment, here we look at it.
Examination one: the safety and protection performance of food quality
This involves shielding, protection, stability, hygiene and safety.
Appraisal two: mechanical processing performance
This involves processability, printability, heat sealability, etc.;
Kraft paper bag manufacturers
Appraisal three: ease of use performance
Requirements for lightweight, easy to carry, storage, open, open, marked obvious easy to buy;
Assessment four: economic performance
That is, the simplicity of production, rationality, energy saving;
Assessment five: environmental performance
Recyclability and degradability. According to the above requirements, in the existing variety of packaging materials, the industry is generally optimistic about the paper packaging. This packaging is very hygienic and reliable, economical and practical, easy to use and conducive to environmental protection.
Paper bag process knowledge:
Paper bag production process is generally divided into hot stamping, laminating, uv three. Today is not to introduce the characteristics of the various processes, but to introduce the various processes applicable to which requirements of the paper bag.
First of all, we most often use the laminating film, laminating film is generally divided into sub-film and light film, white cardboard bags and coated paper bags must be laminating film, light film with the effect of glossy, sub-film, then the sense of luster is more introverted, if you lose the laminating film there are other processes then it is not suitable to use the light film to be used with the sub-film. Kraft paper bag lamination and white cardboard is not the same, the film is covered in the inside, used to do the effect of waterproof freshness.
Hot stamping process is divided into two kinds of hot stamping and hot stamping silver, the essence of the best recognition is the color, generally more upscale paper bags will use this process, commonly used in logos or some more special patterns.
UV itself is no color, generally used for dark base paper bags, in the light will be flooded. Relative to the hot stamping, this process appears to be low-key introverted, more taste.
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