The manufacturer of anti scratch film briefly discusses the reasons and solutions for the problems that occur during the pre coating and lamination process. Below is a detailed answer for you.
1. Reasons and solutions for snow spots on laminated products:
When the capsule pressure or temperature is not appropriate, it should be adjusted appropriately;
If there are dust and impurities on the printing or pre coating film, it should be ensured that the surface of the printing and pre coating film is clean, and the lamination should be carried out in a closed and clean workshop.
2、 Reasons and solutions for weak adhesion and detachment of the coating film:
The ink used is metal ink, and an adhesive pre coating film is selected;
When the ink layer is thick, the thickness of the ink layer should be controlled or an adhesive pre coating film should be selected;
If the ink is not dry, it is necessary to extend the drying time of the printed matter appropriately to ensure that the ink has completely dried;
Ink contains too much paraffin, silicon and other components, and the ink should be replaced or a pre coated film with good adhesion should be selected;
When the surface tension of the printing material is insufficient, below 36mN/m, the surface treatment of the printing material is carried out before coating, and the surface tension reaches 38mN/m;
Excessive powder spraying (anti adhesion) on the printing surface should be reduced appropriately;
The moisture content of the paper is too high. After covering, the water evaporates and the paper and ink film separate. The moisture content of the paper must be adjusted to balance
Fast covering speed, low pressure, and low temperature. Increase the covering temperature appropriately, increase the covering pressure, and reduce the covering speed
When the coating tactile film is overloaded, a new tactile film should be replaced.
3、 Reasons and solutions for wrinkling of laminated products:
When laminating, the tension control at both ends of the unwinding is unbalanced. When there are wavy edges, the unwinding tension should be adjusted appropriately to achieve balance;
The uneven pressure between the heating roller and the rubber roller causes uneven coverage and wrinkles, and the pressure should be adjusted appropriately;
Excessive pressure on the rubber roller can cause deformation of the pre coated film, so the pressure on the rubber roller should be appropriately reduced;
The surface of the rubber roller is damaged or uneven, and a intact rafter rubber roller should be replaced.
Zhejiang Kangfa Film Technology Co., Ltd. is a new type of enterprise with a certain scale. Founded in 2005, the company is engaged in the research and development, production, and sales of various special pre coated films, and can independently develop new products. Its production process is specialized, and the product quality is excellent.
Our main products include anti scratch and matte film, golden onion film, matte film, tactile film, golden sand film, flash film, skin feeling film, and wire drawing film.
Contact information:
Zhejiang Kangfa Film Technology Co., Ltd
Address: Building 52, Zone E, Longgang New City Entrepreneurship Park, Longgang City, Wenzhou, Zhejiang Province
Helpline: 18857792955
Contact person: Ni