The quality of bottom paper is the key to affect the die cutting quality

Categories:Industry news
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Time of issue:2021-04-21 17:58
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(Summary description)The quality of backing paper is the key to the quality of film cutting. The thickness, smoothness, fiber structure and strength of backing paper can directly affect the quality of film cutting. More commonly used backing paper can be divided into two categories, namely opaque backing paper and translucent backing paper. Generally speaking, the fixed quantity of opaque base paper type label paper is above 90g / m2, and it has corresponding stiffness. It is suitable for sheet fed printing and web printing. The label of finished products is mostly made by hand. Self adhesive label paper requires a smooth base paper, uniform thickness, the same overall transparency, the greater the density, the better, in order to facilitate the surface material complete film cutting. 1. Opaque backing paper More commonly used opaque base paper to color distinction, can be divided into yellow and white; According to the structural characteristics, it can be divided into pre coated PE coating and no PE coating. There are two purposes to apply PE coating. One is to seal the surface pores of paper to make it smooth, apply silicone oil, reduce the amount of coating, and control the cost; Another function is to improve the film cutting characteristics, because the PE coating has the corresponding flexibility and elasticity, which can reduce the bottom paper fracture. When the opaque backing paper is cut on the flat die-cutting machine, the common problem is that the backing paper is broken. Therefore, in order to ensure the accuracy of the film cutter and the smoothness of the liner, the smooth backing paper with large fiber tension and uniform thickness is used to improve the film cutting quality. 2. Translucent backing paper Translucent backing paper is also known as thin backing paper, and grazin backing paper (glass backing paper) is commonly used for self-adhesive label paper. There are two indexes that affect the quality of film cutting: one is the uniformity of thickness, the other is the fiber structure. In this case, the uniformity of the thickness of the backing paper is more critical, especially when the film is cut by the circular die, because the size of the film cutter roller is determined by the thickness of the backing paper. If the thickness of the backing paper is not uniform, the blade will cut through or cannot cut the backing paper. The fiber structure of grazin base paper mainly affects the film cutting rate of rotary cutting, because the fiber strength can directly affect the breaking rate of waste discharge. The faster the rate is, the easier the waste discharge is. If the strength of the material itself is high, the film cutting rate can be increased. However, the fiber structure has little effect on the quality of the flat cut compared with the flat cut. If the bottom of the paper fiber brittle, poor flexibility, it can only be in high-precision machinery and equipment, film cutting cost-effective machinery and equipment for die-cutting processing, which shows that the accuracy of machinery and equipment is also one of the factors affecting the quality of film cutting.

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The quality of bottom paper is the key to affect the die cutting quality

(Summary description)The quality of backing paper is the key to the quality of film cutting. The thickness, smoothness, fiber structure and strength of backing paper can directly affect the quality of film cutting. More commonly used backing paper can be divided into two categories, namely opaque backing paper and translucent backing paper. Generally speaking, the fixed quantity of opaque base paper type label paper is above 90g / m2, and it has corresponding stiffness. It is suitable for sheet fed printing and web printing. The label of finished products is mostly made by hand. Self adhesive label paper requires a smooth base paper, uniform thickness, the same overall transparency, the greater the density, the better, in order to facilitate the surface material complete film cutting.

1. Opaque backing paper
More commonly used opaque base paper to color distinction, can be divided into yellow and white; According to the structural characteristics, it can be divided into pre coated PE coating and no PE coating. There are two purposes to apply PE coating. One is to seal the surface pores of paper to make it smooth, apply silicone oil, reduce the amount of coating, and control the cost; Another function is to improve the film cutting characteristics, because the PE coating has the corresponding flexibility and elasticity, which can reduce the bottom paper fracture.
When the opaque backing paper is cut on the flat die-cutting machine, the common problem is that the backing paper is broken. Therefore, in order to ensure the accuracy of the film cutter and the smoothness of the liner, the smooth backing paper with large fiber tension and uniform thickness is used to improve the film cutting quality.
2. Translucent backing paper
Translucent backing paper is also known as thin backing paper, and grazin backing paper (glass backing paper) is commonly used for self-adhesive label paper. There are two indexes that affect the quality of film cutting: one is the uniformity of thickness, the other is the fiber structure. In this case, the uniformity of the thickness of the backing paper is more critical, especially when the film is cut by the circular die, because the size of the film cutter roller is determined by the thickness of the backing paper. If the thickness of the backing paper is not uniform, the blade will cut through or cannot cut the backing paper.
The fiber structure of grazin base paper mainly affects the film cutting rate of rotary cutting, because the fiber strength can directly affect the breaking rate of waste discharge. The faster the rate is, the easier the waste discharge is. If the strength of the material itself is high, the film cutting rate can be increased. However, the fiber structure has little effect on the quality of the flat cut compared with the flat cut. If the bottom of the paper fiber brittle, poor flexibility, it can only be in high-precision machinery and equipment, film cutting cost-effective machinery and equipment for die-cutting processing, which shows that the accuracy of machinery and equipment is also one of the factors affecting the quality of film cutting.

Categories:Industry news
Author:
Origin:
Time of issue:2021-04-21 17:58
Views:

Information

The quality of backing paper is the key to the quality of film cutting. The thickness, smoothness, fiber structure and strength of backing paper can directly affect the quality of film cutting. More commonly used backing paper can be divided into two categories, namely opaque backing paper and translucent backing paper. Generally speaking, the fixed quantity of opaque base paper type label paper is above 90g / m2, and it has corresponding stiffness. It is suitable for sheet fed printing and web printing. The label of finished products is mostly made by hand. Self adhesive label paper requires a smooth base paper, uniform thickness, the same overall transparency, the greater the density, the better, in order to facilitate the surface material complete film cutting.

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1. Opaque backing paper
More commonly used opaque base paper to color distinction, can be divided into yellow and white; According to the structural characteristics, it can be divided into pre coated PE coating and no PE coating. There are two purposes to apply PE coating. One is to seal the surface pores of paper to make it smooth, apply silicone oil, reduce the amount of coating, and control the cost; Another function is to improve the film cutting characteristics, because the PE coating has the corresponding flexibility and elasticity, which can reduce the bottom paper fracture.
When the opaque backing paper is cut on the flat die-cutting machine, the common problem is that the backing paper is broken. Therefore, in order to ensure the accuracy of the film cutter and the smoothness of the liner, the smooth backing paper with large fiber tension and uniform thickness is used to improve the film cutting quality.
2. Translucent backing paper
Translucent backing paper is also known as thin backing paper, and grazin backing paper (glass backing paper) is commonly used for self-adhesive label paper. There are two indexes that affect the quality of film cutting: one is the uniformity of thickness, the other is the fiber structure. In this case, the uniformity of the thickness of the backing paper is more critical, especially when the film is cut by the circular die, because the size of the film cutter roller is determined by the thickness of the backing paper. If the thickness of the backing paper is not uniform, the blade will cut through or cannot cut the backing paper.
The fiber structure of grazin base paper mainly affects the film cutting rate of rotary cutting, because the fiber strength can directly affect the breaking rate of waste discharge. The faster the rate is, the easier the waste discharge is. If the strength of the material itself is high, the film cutting rate can be increased. However, the fiber structure has little effect on the quality of the flat cut compared with the flat cut. If the bottom of the paper fiber brittle, poor flexibility, it can only be in high-precision machinery and equipment, film cutting cost-effective machinery and equipment for die-cutting processing, which shows that the accuracy of machinery and equipment is also one of the factors affecting the quality of film cutting.

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Guangdong Jiancai Paper Technology Co., Ltd. sets a benchmark for high-end thermal paper production

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