White cardboard concept
Single or multi-layer bonded paper made entirely of bleached chemical pulp and fully sized, suitable for printing and product packaging, generally at a basis weight of 150 g/m2 or more. This type of paper jam is characterized by high smoothness, good stiffness, a neat appearance and good formation. Can be used for business cards, menus or similar products.
In the past, some people planned to use quantitative basis as the basis: paper, cardboard and cardboard; white cardboard has high requirements on whiteness, whiteness of A and so on is not less than 92%, B is not less than 87%, and C is not lower than 82%.
White cardboard is a kind of white cardboard made of thick and solid pure wood pulp. It is calendered or embossed. It is mainly used for printing and printing substrates. It is divided into A, B and C grades. At 210-400g/m2. Mainly used for printing business cards, invitations, certificates, trademarks, and packaging and decoration.
White cardboard is a kind of paper that is firm and thick. In the past, it was intended to be based on quantitative basis: paper, cardboard and cardboard.
In the early years, the white thick paper with a basis weight of about 200g/m2 was smoothed on the Shanghai shopping mall. After calendering, the stiffness was higher. Some people also called thin cardboard.
Blue and white double-sided copper plate jam
It is made of fully chemical bleached wood pulp with a basis weight of about 150 g/m2. The uncoated ones are called the sika paper, and the double-coated ones are the copper sika.
Main use: Sika paper is mainly used for business cards, wedding invitations, postcards, cards, data cards. Copper Sika is mainly used for book covers, postcards, cards, wedding invitations, merchandise tags, cosmetics and other necessities.
White copper plate paper
The white copper card is mainly used in the production of higher-grade cartons.
Therefore, the paper surface must have high whiteness, smooth paper surface, good ink acceptance, good gloss, etc.
High whiteness and good printability are required for back printing, and delamination cannot occur when the carton is rolled. Vacuum packaging has the effect of displaying and protecting goods, and is relatively light, so it is widely used. The most important quality requirement for white copper cards for vacuum packaging is the adhesion to PVC plastic shells. If it can’t be effectively adhered, it will not be accepted by customers. Since the adhesion effect between the cardboard and the PVC plastic shell is affected by the adhesive processing conditions (adhesive concentration, heating temperature, heating time) and printing ink, the factory can only guarantee the adhesion effect of the cardboard before the brush, and the customer is using it. The test should be carried out before the test to confirm the adhesion effect.
Main use: a variety of high-grade carton, vacuum blister packaging.
Gray bottom copper paper jam
The surface layer uses bleached chemical pulp, and the core layer and the bottom layer are unbleached kraft pulp, ground wood pulp or clean waste paper, which is suitable for high-grade carton color printing, so it is necessary to pay attention to the quality of folding resistance, color printing effect and stretchability.
Main use: Suitable for making all kinds of carton and hardcover book covers.
1. The whiteboard paper has small stretchability, toughness, and is not easy to break when folded.
2. Strong and thick, high whiteness, smooth paper, good ink acceptance and good gloss.