Tea packaging bag production process
Tea packaging bag production process
China is the hometown of tea. It has a history of making and drinking tea for thousands of years. It has a collection of famous products. The main varieties include green tea, black tea, oolong tea, scented tea, white tea, yellow tea and dark tea. Tea has medicinal effects on keeping fit and curing diseases. It is also full of appreciation and can cultivate one's sentiments. Tasting tea and entertaining guests are elegant entertainment and social activities for Chinese individuals. Therefore, everyone is paying more and more attention to the packaging of tea. There are boxes and bags. DakinPack mainly introduces the material and production process of bagged tea bags, as well as some problems that arise later.
The materials of tea packaging bags include PET, PE, AL, OPP, CPP, VMPET, etc., but the most commonly used structure is PET/AL/PE.
Let us first look at the production process of tea packaging bags:
Printing--inspection--coding--compositing--curing--slitting--bag making
1. Printing
There are printed and non-printed packaging bags. The cost of non-printed bags is lower than the cost of printed bags. Because one color requires a plate roller, so several plate rollers must be made for several colors. When it comes to plate making, it is best to find a large company to do it, as the quality and service are relatively guaranteed.
The quality of the printing machine is also very important. If there are problems such as printing speed and deviation correction during printing, it will have an impact on the overall delivery time.
2. Inspection
Inspection is usually done after printing and during the process. That is to say, if there is no printed tea packaging bag, there is no need to inspect it. First of all, it must be clear that the inspection product is a machine, and the printed film is inspected according to the set data.
3. Coding
For customers who have coding requirements, products can be coded.
4. Compound
Lamination is to stick several types of films together with corresponding adhesives. Some of the parameters will not be emphasized here. Here we mainly talk about the classification of lamination. Lamination is divided into: dry lamination, solvent-free lamination, co-extrusion lamination, Extrusion compounding. They each have their own advantages and disadvantages.
5. Maturation
Ripening is to let the adhesive volatilize, mainly the adhesive remaining during the previous compounding. Different packaging and roll film packaging of different products have different curing times.
6. Cutting
Whether you are making bags or roll films, slitting can be used because the printed products are relatively wide. To produce the specifications required by customers, slitting is a key step.
7. Bag making
This is based on the needs of the user. Some require bag making, and some do not. Common bag types include: three-side sealing bags, fold-bottom self-standing zipper bags, insert pocket self-standing zipper bags, and double insert side bags.
How to judge whether tea packaging bag is qualified after production?
As we all know, the quality of a leaf tea packaging bag is directly related to the quality of the leaf tea product. It is involved in the entire process of leaf tea product production, circulation and even consumption by consumers. Therefore, for leaf tea companies, how to judge It is very important whether the quality of a leaf tea packaging bag is up to standard.
First of all, a qualified leaf tea packaging bag must not have defects such as bubbles, perforations, water lines, exposed ribs, poor plasticization, fish-eye stiffness, etc. that may affect its use. Once the leaf tea has the above phenomena, Bags should not be used to package leaf tea.
Secondly, a qualified leaf tea packaging bag should have good physical and mechanical properties, such as tensile strength, etc. This directly affects whether the leaf tea packaging bag is prone to breakage and damage during use.
Furthermore, a qualified leaf tea packaging bag must be able to protect the product while not contaminating the leaf tea itself. Therefore, the hygienic performance deserves attention. There must be no solvent residue after production to avoid contaminating the packaged leaf tea and affecting the leaves. Not only the color, aroma and taste of tea, but also the possible adverse effects on consumers' health should be taken into consideration.
While considering the hygienic performance of leaf tea packaging bags, green and environmentally friendly materials can be considered when selecting leaf tea packaging bags to respond to the sustainable development strategy and provide the possibility of recycling and reuse of packaging bags.