How to choose kraft paper for kraft gift box, and what to do if there is shadow in kraft paper printing

1. Kraft paper is a common material in kraft gift box design 

Kraft paper is a common material in kraft gift box design, and is often used for outer packaging such as coffee, tea, and tote bags. Its basis weight range is 80 g/m2 to 120 g/m2, and it is available in web and flat paper, as well as single-sided, double-sided and striped. The main quality requirements are flexibility and sturdiness, high bursting resistance, and can withstand greater tension and pressure without breaking. It is a good material for kraft gift box.

2. Different kraft paper, make different kraft gift box:

Kraft paper usually maintains its yellowish-brown color and is suitable for bags and kraft gift boxes. According to the different properties and uses, kraft paper has various uses. Kraft paper is a general term for a kind of paper, and there is no certain specification. Generally, it is classified according to its nature and use. According to the different colors, it can be divided into: primary color kraft paper, red kraft paper, white kraft paper, flat kraft paper, single light kraft paper, two-color kraft paper, etc. The corresponding kraft gift boxes are also different, and you can choose according to your needs.

3. The classification of kraft paper is different from that of kraft gift box:

To make a kraft gift box, it is necessary to select the appropriate kraft paper according to the purpose and material. According to the different uses, it can be divided into: packaging kraft paper, waterproof kraft paper, moisture-proof kraft paper, rust-proof kraft paper, patterned kraft paper, process kraft paper, insulating kraft paper, Leather stickers, etc. According to the different materials, it can be divided into: recycled kraft paper, kraft core paper, kraft base paper, rough kraft paper, kraft wax paper, wood pulp kraft paper, composite kraft paper, etc. Different sources of kraft paper raw materials, different production batches, different production seasons, different production machines, and many other reasons will affect the color of the kraft paper roll base paper, which is unavoidable and uncontrollable. , Generally, the same batch of kraft paper can guarantee 98% of the same color. You can choose different kraft paper according to the needs of the kraft gift box.

4. How to solve the shadow problem of kraft gift box

The shading of the inks of the kraft gift box is more likely to appear when using clear inks, while opaque inks and samples are less likely to appear. In working with the printing process, there are a few things that can be done to reduce the appearance of ghost images. So how to solve the shadow problem of kraft gift box?

4.1. Avoid large ink levels as much as possible in the design of the kraft gift box. It is difficult to control when printing large ink levels. When kraft paper is used as a kraft gift box, try to avoid large ink levels.

4.2. Change the design of kraft gift box. Reduce the density of large frames or large fields, balance the density gap between grid images and field sections on the page, and try to balance the ink volume across the page to reduce the appearance of shadow shadows. For example, if two pictures are placed on the right hand side of the printed paper, they can be easily printed. If you change the pattern of the kraft gift box, place the two pictures separately, one on the left and one on the left, to avoid ghosting and avoid the shadow problem of the kraft gift box.

4.3. When kraft gift box typesetting, the layout should be properly designed. Proper layout of the kraft gift box packaging factory can ensure that the ink rollers have enough time to avoid ghosts. For example, if a design is to place a large image on the ground, it can be placed on a white background of both images if the press is large enough. This can also avoid the shadow problem of the kraft gift box.

4.4. Using the cut surface other than the cutting line, place the color bar on the ink roller to transfer the excess ink to the ink roller. These color bars are called "movement" bars, and this also avoids the problem of shadows in the kraft gift box.

4.5. Adjust the kraft gift box printing machine to increase the ink supply for the shadow part of the ink. In addition, some printing machines are also equipped with inclined rollers, which can effectively solve the shadow of ink, and use different parts of the ink roller to print different parts of the large field, so that the ink roller is not short of ink. This can also avoid the shadow problem of the kraft gift box.

4.6. The kraft gift box packaging factory will rotate 90° to design the layout. For example, in the field of large bold type, if the ink roller is placed on the large bold type first, then it will be printed one by one in the field.