What are a few points of paper bag customization?
First of all, the most common paper is white cardboard, because of its firm texture, the general 210 grams of thickness bearing 3 ~ 5 kilograms enough, of course, if it is heavier leather or other items, with 250 grams of white card bearing effect will be better, and the printing effect is good, the price is moderate, generally for the selection of medium- to high-grade products. Copperplate paper is an uncommon material, its texture than the white cardboard soft some, the conventional thickness of 175 grams, the same printing effect and white cardboard, the same need to laminate, the price is about the same as the white cardboard.
In recent years, many foreign large brands of clothing bags popularized the use of 180 grams of white kraft paper, they use the white kraft paper is mostly foreign production, this paper bag with more lightweight, not particularly large, because it is not as heavy as white cardboard, but printing is not easy to discoloration, and do not need to be laminating, the price of a variety of materials in the highest, hand-held paper bag manufacturers are often imported this material. Of course, there is also the use of yellow cowhide material, its price is relatively cheaper than the following coated paper, but the printing effect is not as good as other materials, of course, imports are better than domestic.
If the product output value is not high, the choice of cheap packaging can save a lot of cost. Gray board and double-sided white material prices are more cost-effective, can be said to be the cheapest material in the paper category. Gray board, as the name implies is that one side is white, one side is gray paper, the minimum thickness of 250 grams, the hardness to be softer, the printing effect and the white cardboard is almost the same, but also need to be laminated. Double-sided white and gray paper is almost the same, just two sides are white, the middle is gray material, the price is a little more expensive than gray paper, can also be used to “fill” under the white cardboard.
About the paper material first add so much, there will be time to introduce in detail. However, in the selection of materials at the same time, first of all, pay attention to match the grade of the product, and secondly, can not blindly pursue the cheap, be sure to confirm the samples with the manufacturer, pay attention to the effect of matching with the product, so as not to cause “disharmony” of the impact.
Now that we already know the material of the paper bag customization, now we can go together to look at a few points of the paper bag customization.
The most important part is the production cycle, because the paper bag in the customization needs a certain period, and the production of the workshop can not be empty, etc., there will now be in the production of paper bags, generally recommended that customers at least 1 month in advance of the time to confirm the various requirements. Like our three happy paper bags is generally the production cycle is about 15 working days. If the time is too tight, for the bag later in the production of the adjustment will be very unfavorable.
Secondly, the number of paper bag production because of the reasons for the loss, in order to ensure that the final number of large quantities are generally more than 10% of the material. In that case, the number of finished products are often more than some, that for these extra paper bags, customers can choose whether to need.
The last is the packaging, transportation and other aspects of the bags, such as special requirements also need to be prepared in advance.
Knowledge: the formation process of paper bags
After printing and then laminating, and then punching through the rope (generally use nylon rope or cotton rope, some thin paper bags are often used paper rope), the bag can be molded (such as bags printed in larger sizes, the need to reinforce the rope hole rivets to resist tension).
Visible, handbag production process is not complex, just wear the rope this step often need manpower to complete, so relative to other printed matter, the process steps are slightly more complex, which also makes the cost of handbags increased.
Knowledge two: paper bag design
Design bags, the main energy may be placed on how to make the bag design chic, beautifully printed, to be able to give people a deep impression, and now, can be used many times, environmental performance and other characteristics are also in the designer’s key considerations among the issues.
Knowledge three: the quality of customized paper bags with logo
(1) the size of pigment particles and their degree of dispersion
Although the role of the ink film capillary is an important factor in the formation of print gloss, but the apparent size of the pigment particles in the dispersed state is more important, it directly determines the state of the ink film capillary. Thus, the pigment particles are small and well dispersed, which is conducive to the formation of a smooth ink film, and is also very favorable for improving the paper bag printing gloss.
(2)Viscosity of connecting material and pigment content
According to the principle of interfacial chemistry, the capillary penetration speed is inversely related to the liquid viscosity, that is, the penetration speed decreases with the increase of viscosity. The structure of the capillary network formed between the ink pigment particles is an important aspect in determining the gloss of the print. In the moment of embossing, the ink is pressed into the larger pores of the paper as a whole; after embossing, the connecting material begins to separate from the ink and penetrate into the smaller pores of the paper. Therefore, the size of the ink film capillary determines the amount of separation of the connecting material. Capillary retention of the role of the connecting material than the printing pressure to press the connecting material into the pores of the paper much larger role.
(3) drying time
Ink film on the paper surface to dry quickly can reduce the amount of connecting material penetration into the paper pores, thereby improving the gloss and smoothness of the ink film. Ink film of high gloss means that the surface of the specular reflection degree is relatively high, so that the human eye in most cases can see the surface of the reflected white light is much less than the gloss of the ink film is low, so that the color saturation is higher. So glossy prints look more vibrant colors, full. Spot color ink printing ink layer is mostly translucent or opaque, in the selection of ink formulations should also be based on the actual situation to take into account the ink layer of translucency on the impact of spot color printing.
Several common materials in the composite packaging bags and the use of materials!
Composite packaging, the raw material film is no more than a few types: printed film, composite film, can be in direct contact with the product film (such as food, pharmaceuticals).
1 Printed film: common printed film, including: PET (polyester film) thickness commonly used for 12 microns, BOPP/Matt BOPP (biaxially oriented polypropylene film / matte biaxially oriented polypropylene film) thickness commonly used 18 microns, 25 microns and 28 microns, etc., Nylon-BOPA (biaxially oriented nylon film) thickness commonly used for 15 microns.
2 Composite film: common composite film PE (polyethylene film) thickness of 25 microns – 150 microns between the CPP (cast polypropylene film) thickness can be adjusted at will, VMPET (aluminized polyester film) thickness of commonly used for the 12 microns, VMCPP (Vacuum Aluminum Coated Cast Polypropylene) thickness can be adjusted at will, AL (Aluminum Aluminium Foil of the full name) thickness of the general 7 microns. The thickness of AL (Aluminum Aluminium Foil) is generally 7 microns, and some printed films can also be put into the middle as a composite film, such as PET and Nylon-BOPA film.
3 The film can be in direct contact with the product (especially food and pharmaceuticals, PE film, CPP film, VMCPP film can be put directly into the innermost layer of the contact with food, they are safe, but the raw material film must be food-grade.
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