The difference between technical requirements for single-sided and double-sided lamination mainly includes:
(1) The surface temperature of the hot-coated film on the single-sidedly coated metal steel roll is 80 °C ± 2 °C, and the double-sided film is generally controlled at about 50 °C;
(2) It is best not to use calendered film for double-sided film products because of too much plasticizer;
(3) The pull-out force of the double-sided laminating paper-out part should be larger than that of the single-sided laminating film, otherwise air bubbles will be easily generated;
(4) Both sides of the plastic film on both sides of the film should be adjusted at any time, and must not be skewed;
(5) The temperature of the double-sided laminating process is low, and the fastness and gloss of the laminating products should be checked frequently.
The density of the travel bag is small and light
The material of the travel bag should have the effect of rainproof water
Polyester durable, good elasticity, not easy to deformation, corrosion resistance, insulation, crisp, easy to wash and quick drying, loved by the people. Now many travel bags are made of this kind of fabric, the most commonly used is the Double Shoulder bag that everyone knows about the camel card.The pull rod box refers to a suitcase with a pull rod and a roller. Because of its convenient use, carry clothes and so on to become travel, go out and be widely used. At the same time, the pull rod box also has a pull rod for the box, and it has the single pipe pull rod and the double pipe pull rod. The pipe of the pull rod also has the square tube and the circular tube's separation, so as to facilitate the walking while dragging, and lighten the burden greatly.
Waterproof Backpack,School Backpack,Tactical Backpack,Canvas Backpack
Gaobeidian Pengjie Leather Goods Co., Ltd. , http://www.pengjieluggage.com