With the increasingly fierce market competition, manufacturers are trying hard to improve the function and quality of their products, and on the other hand, improve the packaging quality of their products. Printing with pearl paper occurs under this condition.
First, the basic knowledge of pearl paper
1. The structure of pearl paper
The composition of pearl paper is the same as ordinary whiteboard paper, which consists of three parts: bottom fiber, filler and surface coating. Different from ordinary whiteboard paper, there are pearlescent effect particles in the surface coating. The particles consist of titanium dioxide (or other metal oxides) and mica particles which are formed by the encapsulation of titanium dioxide (or other metal oxides). This structure is in the form of flakes.
2. The characteristics of pearl paper
(1) Low surface energy and poor ink adsorption
Due to the smooth surface of the sheet structure composed of mica and titanium dioxide (or other metal oxides), and the relatively smooth paper surface during the papermaking process (so that the pearlescent effect can better penetrate the coating into the human eye), the pearlescent paper is more than normal The surface energy of whiteboard paper is much smaller. In printing, the ink is not easy to adhere and absorb, and it is not easy to dry.
(2) The surface pearl effect is easily destroyed
3. Problems often caused by pearlescent paper printing
(1) Adhesion and dryness of the ink lead to low density in the printed field, loss of small dots, slow drying, easy sticking on the back surface, and easy scratches.
(2) The pearlescent effect is easily lost, and white spots, flowers, and creases are easily formed in printing.
Second, pearl paper offset printing
1. Process design
(1) Design and plate making
Since pearlescent paper is mainly a gorgeous effect that embodies the pearl of paper, if the area of ​​printing ink is large, a pearl effect of paper cannot be reflected, and the pearl effect of the second paper is greatly weakened by the ink layer. Therefore, when designing plates, we should try to avoid large-area field pattern printing according to the characteristics of pearl paper. The general design of some simple lines, patterns, text, can highlight the focus of the contents of the package, but also show the gorgeous effect of paper.
(2) Production process
Since pearlescent particles of pearlescent paper are easily broken, semi-finished products cannot withstand repeated sequence and friction, so the production route should be as short as possible, and some unnecessary technological steps should be eliminated, especially those that involve more manual participation. Can not be printed twice at once, can be printed with offset printing without screen printing, and can be applied offline without polishing, but of course it can not be glossless, because the coating will greatly weaken the pearlescent paper. Pearl effect.
2. Printing
At present, there are three kinds of inks that can be used for printing pearlescent papers. According to their printing effects, they are: UV inks, non-absorbent paper printing inks, and common inks. Here are the issues that should be noted when printing each type of ink.
(1) UV ink printing
UV printing uses UV drying, and each printing unit is equipped with an ultraviolet drying device. When the UV ink passes through the drying device, the drying time under the initiation of the photo-initiating group is very short, and it can be said to be instantaneous drying, so that it is completely dry after entering the next printing unit or the receiving portion. We can increase the ink, reduce the ink viscosity and other methods to improve the ink on the pearl paper surface of the ink, while the ink is also a superimposition of a "dry-dry" overlay method, can greatly improve the overprint rate.
First, the basic knowledge of pearl paper
1. The structure of pearl paper
The composition of pearl paper is the same as ordinary whiteboard paper, which consists of three parts: bottom fiber, filler and surface coating. Different from ordinary whiteboard paper, there are pearlescent effect particles in the surface coating. The particles consist of titanium dioxide (or other metal oxides) and mica particles which are formed by the encapsulation of titanium dioxide (or other metal oxides). This structure is in the form of flakes.
2. The characteristics of pearl paper
(1) Low surface energy and poor ink adsorption
Due to the smooth surface of the sheet structure composed of mica and titanium dioxide (or other metal oxides), and the relatively smooth paper surface during the papermaking process (so that the pearlescent effect can better penetrate the coating into the human eye), the pearlescent paper is more than normal The surface energy of whiteboard paper is much smaller. In printing, the ink is not easy to adhere and absorb, and it is not easy to dry.
(2) The surface pearl effect is easily destroyed
3. Problems often caused by pearlescent paper printing
(1) Adhesion and dryness of the ink lead to low density in the printed field, loss of small dots, slow drying, easy sticking on the back surface, and easy scratches.
(2) The pearlescent effect is easily lost, and white spots, flowers, and creases are easily formed in printing.
Second, pearl paper offset printing
1. Process design
(1) Design and plate making
Since pearlescent paper is mainly a gorgeous effect that embodies the pearl of paper, if the area of ​​printing ink is large, a pearl effect of paper cannot be reflected, and the pearl effect of the second paper is greatly weakened by the ink layer. Therefore, when designing plates, we should try to avoid large-area field pattern printing according to the characteristics of pearl paper. The general design of some simple lines, patterns, text, can highlight the focus of the contents of the package, but also show the gorgeous effect of paper.
(2) Production process
Since pearlescent particles of pearlescent paper are easily broken, semi-finished products cannot withstand repeated sequence and friction, so the production route should be as short as possible, and some unnecessary technological steps should be eliminated, especially those that involve more manual participation. Can not be printed twice at once, can be printed with offset printing without screen printing, and can be applied offline without polishing, but of course it can not be glossless, because the coating will greatly weaken the pearlescent paper. Pearl effect.
2. Printing
At present, there are three kinds of inks that can be used for printing pearlescent papers. According to their printing effects, they are: UV inks, non-absorbent paper printing inks, and common inks. Here are the issues that should be noted when printing each type of ink.
(1) UV ink printing
UV printing uses UV drying, and each printing unit is equipped with an ultraviolet drying device. When the UV ink passes through the drying device, the drying time under the initiation of the photo-initiating group is very short, and it can be said to be instantaneous drying, so that it is completely dry after entering the next printing unit or the receiving portion. We can increase the ink, reduce the ink viscosity and other methods to improve the ink on the pearl paper surface of the ink, while the ink is also a superimposition of a "dry-dry" overlay method, can greatly improve the overprint rate.
Equip with a cargo bed or basket that make our golf carts more practical for these peoples with demand of place on the golf carts for stuff transportation,like luggages,,etc, you can also custom the cargo bed to do a harder work,this mainly mean transport much heavier stuffs, our ulitity vehicle realy capable for all these due to its big power motor equiped and we can increase its torque should you need it for heavy work,like farm work by reducing its max speed a little bit, also the size and shape of the cargo bed or basket can be custom made, however,we would better suggest our gas powered utiltiy car should you intend it for heavy work.
Gas Utility Vehicle,Electric Utility Vehicle,2 Seats Electric Utility Vehicle,Utility Golf Carts
Yongkang Jinghang Sightseeing Vehicle Co., Ltd. , http://www.jhgolfcarts.com