Over the years, the portable functional design scheme of corrugated boxes has attracted more and more attention from customers. It not only maintains products, is conducive to warehousing, logistics and transportation, but also has the effect of promoting and planning products. However, the printing quality of corrugated boxes is also limited by many conditions. The following Xiaobian briefly introduces the factors that harm the printing quality of corrugated boxes.
1. The variation of the gap size and pressure of each roller of the gap printer is an important factor to ensure the quality of printed products. Because the gap adjustment of the paper guide printing plate and the printing press is unreasonable, some product quality problems will occur, such as the increase of the wire frame, the enlargement of the dot, the illegibility of the handwriting, the overlapping of the edges, the dirty edges, the field leakage, and the printing error. This requires operators to adhere to the principle of seeking truth from facts and adjust the size of each gap according to the thickness of the printing plate.
2. Plate: the printing plate of corrugated box mainly includes flexo, Su Jiao plate, screen plate, etc., especially flexo and plastic plate are widely used. Flexo is made of malleable and soft raw materials. It has the characteristics of soft material, high printing resistance, clear graphics and text, and poor destruction of corrugated boxes. Compared with flexo, offset plate has higher hardness and lower printing resistance, but it has a very high market share in the conventional paper box industry due to its low cost, convenient manual production or machine engraving. Therefore, after receiving the order information printed matter, appropriate plates should be used in combination with the actual situation.
3. Guide strip offset plate strip or film cut elastic strip plays a very important role in printing, especially in some small-sized prints with small printing area. The length of the guide strip should be equal to or more than the total width of the cardboard. The guide strip should be pasted on both sides of the printing plate and printed outside the burr of the cardboard. It can make the cardboard operate in the printing process and prevent problems such as inaccurate overprinting and forbidden printing.
The cardboard method of corrugated boxes is a key step to obtain orders from consumers. only by selecting corrugated boards accurately, scientifically and reasonably and conforming to the cost understanding ability of customers can we obtain order information, satisfy consumers, ensure the establishment of corresponding and stable customer relationship management in the fierce competitive market, and maintain a certain profit space, so that enterprises can develop stably. What kinds of corrugated boxes and cardboard can you choose?
1. Selection of corrugated cardboard types corrugated cardboard types are generally divided into single-layer corrugated cardboard, three-layer corrugated cardboard, five-layer corrugated cardboard and seven layer corrugated cardboard. Single layer corrugated cardboard is formed by bonding a piece of face paper and a piece of corrugated paper; Three layer corrugated board, also known as single corrugated board, is formed by sticking a piece of corrugated paper between a piece of face paper and a piece of inner paper; Five layer corrugated board, also known as double corrugated board, is formed by sticking two sheets of corrugated paper between the surface paper, core paper and inner paper; Seven layer corrugated board is also called three layer corrugated board. It is formed by sticking three sheets of corrugated paper between the surface paper, the core paper and the inner paper.
2. Corrugated paper waveform selection corrugated paper waveform is generally divided into U-shaped, V-shaped and UV shaped. The ceiling of the U-shaped ridge is round, the ceiling of the V-shaped ridge is infinitely close to the ceiling of the triangle, and the ceiling of the UV shaped ridge is in between. Customers generally do not have requirements for corrugated paper wave shape, but under suitable conditions, in order to ensure and improve the compressive strength of corrugated paper, improve the hardness and impact resistance, and meet the requirements of toughness and packaging and printing, we can choose the method of B-shaped, C-shaped or A-shaped, UV shaped or U-shaped fusion.
