Kraft paper is widely used in various packaging supplies, paper bags, kraft paper bags, color boxes, gift boxes, kraft paper, printed kraft paper, notebook kraft paper, kraft paper for workbooks, and kraft paper for envelopes.

Kraft paper printing can use flexo, gravure, offset, and screen printing processes. As long as you are proficient in printing technology, familiar with the printing suitability of printing inks and kraft paper, reasonable selection and deployment of inks, and control of equipment parameters can achieve the best quality results .

However, for some small packaging printing processing factories, or small factories that have just put into production and operation of kraft packaging, due to various conditions, there will still be some problems with product quality. The following points need to be paid attention to when printing on kraft paper:

1. Pay attention to printing color
In order to obtain better color reproduction in kraft paper printing, it is more difficult than printing with SBS paper. Especially to achieve accurate color reproduction on ordinary kraft paper, you need to be more careful than printing on bleached kraft paper. Because ordinary kraft paper itself is dark brown,

The effect of printing ink is very different from the effect of printing on bleached paper. Therefore, it is better to use brightly colored inks, and use more eye-catching colors, so the printing effect is better. Pastel and light colors are the most difficult to achieve the desired effects of desired ink density, opacity, and abrasion resistance. In addition, if necessary, you can add a little white to the ink first, which will help achieve the desired soft hue or light color, which is very useful for copying soft and light colors. With the increasing maturity of printing technology, some manufacturers even use UV inks, which effectively improves the color effect of printing. At present, almost all ink manufacturers have developed inks for primary color cardboard, and many ink manufacturers have also developed inks for printing on kraft paper. Therefore, you should consult with the ink manufacturer before determining the best solution for your work. Choose different formula inks according to the printing needs of our factory, and refer to the ink chromatography provided by the ink manufacturer and the printing effect of the ink on different papers. Finally, determine the best choice for yourself. Best ink.

2. Reasonable selection of ink
Because kraft paper is different from SBS paperboard and general printing paper, it is uncoated, looser than bleached paperboard, has many pores on the surface, and has relatively strong permeability. This requires comprehensive application and application of ink. consider. For example, according to the analysis of the characteristics of kraft paper, it is generally better to use flexo printing, and it is not suitable to use full offset kraft paper for offset printing. Because the surface of kraft paper is rough, the texture is soft, the ink absorption is strong, and the color of printed products is dull, and the printing will also cause the paper to pull down the fiber (also called pulling off the paper hair).

3. Cardboard production and processing
Because of the characteristics of loose, porous and large volume of unglazed kraft paper, it is easy to generate dust during the process of paperboard manufacturing and processing. Therefore, attention must be paid to preventing and reducing the harm caused by dust.

4. Die-cutting after printing
Due to the special structure of the primary color kraft paper, its strong and predictable fiber characteristics have good processing properties such as embossing, die cutting, and engraving. However, for primary fibers with high strength and toughness, kraft paper is required to avoid bounces through deep indentation lines. In addition, the die cutter must be sharp. Due to the higher strength of kraft paper fibers, a narrower indentation is also required on the perforation line, and the notches required for perforation should be fewer and smaller.

5. Reasonable gluing
High-solidity, high-viscosity resin adhesive is suitable for low-temperature bonding. It needs to be cooled before it can be attached to kraft paperboard. It cannot penetrate into the cardboard in large quantities. Traditional hot melt adhesives are also suitable for kraft paperboard and polyester-coated kraft paper. it is good. Due to its light weight, kraft paperboard is suitable for production on high-speed folder folding machines.

6. Reasonable selection of paper
In order to meet the new packaging requirements of food manufacturers, primary kraft paperboard has different characteristics from bleached paperboard, such as home products such as baked goods or convenience foods. The natural brown appearance of the original color kraft paper has a healthy, retro flavor. In fact, just the distinctive contrast between the unique appearance of kraft paper and a large number of white packaging can also make the product stand out. Because many food packaging is designed to provide convenience or practicality, the strength of kraft paper is another advantage. The take-away packaging must be strong enough to wrap the customer’s meal without falling off. By the same token, the beverage cup must be able to remain unchanged in a humid environment so that coffee does not flow onto the customer’s thigh. Strength is also a major consideration for frozen foods because the packaging of frozen foods cannot deform, tear, distort, or absorb too much moisture during the freeze / thaw cycle. In terms of practicality, kraft paper is better than homogeneous bleached kraft paper.

Zhejiang Huangyan Huifeng Stationery Co., Ltd. is a professional China manufacturer and supplier of     kraft paper hardcover notebook     . High quality kraft paper hardcover notebook. The case is made of tough, waterproof kraft paper to protect the recorded information from damage. Contact us if needed
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With the development of China’s custom notebook industry, the custom notebook industry is becoming more sophisticated. With the expansion of planning, the skill level has also greatly improved. However, compared with Europe, America, Japan and other countries, there is a certain distance in terms of production skills, technical planning, and product development. However, from the development trend of business notebooks in recent years, it can be seen that the development trend of business notebooks has generally increased. The development trend has become the following.

Different from the single business notebook function in the past, these years, in order to attract consumers’ attention. Business notebooks are becoming more advanced in planning. Among office supplies, the most useful function is the combination. They break the image of goods that traditional notebooks have promised to be, free, sensitive, and changeable. With the characteristics of a multi-purpose.
 
 
Conciseness and generosity is that the theme will never expire, as well as the planning of business notebook products. Relatively speaking, European and American countries have a greater preference for concise products than Asian countries. Therefore, it can be seen that export business notebooks appear to be over-simplified compared to domestic business notebooks.
 
 
It is more practical. The customization of business notebooks also pays attention to advanced. This also stems from some collections of interest. Since ancient times, stationery has been given away by literati and artists, and valuable stationery is even more valuable. Beloved by collectors, regardless of whether it is valuable or collectible, it is valuable, so business notebooks have also embarked on a high road.

seawind stationery   is an independent brand founded by Zhejiang Huangyan Huifeng Stationery Co., Ltd. The main products are Muslim notebooks, polyurethane notebooks, hardcover notebooks, etc. Product design is novel and exquisite craftsmanship. We have a complete sales network in domestic sales in the global market. Welcome to consult and buy: https://www.chinesestationery.net