Transparency paper (glassine paper) is a thin paper with incomplete light transmission characteristics. The "translucency" is not a quantitative concept, that is, it does not reflect only half the light, but qualitatively reflects that it has incomplete light transmission. From an appearance point of view, this type of paper resembles a frosted glass, which is light gray and has a translucent feeling, and can be seen in the shape of the contents of the package. Therefore, the use of translucent paper as a packaging material can give the product a “mystery†and make the package more attractive. Translucent paper is commonly used in the field of flexible packaging as well as for some specialized applications. At present, the paper has been widely used in envelopes, photographs, candy wrappers, snack bags, biscuit carton linings, safety can sealing materials, medical packaging, inserts and the like.
The translucent papers are described below in terms of their physical properties, papermaking properties, and print processing properties.
Physical properties
Although translucent phenomenon is a negligible phenomenon in nature, translucent paper with translucent characteristics can make printed graphic information more clear, products more mysterious, and outer packaging more attractive. The semitransparent paper originally on the market has a high degree of transparency (low opacity) and low strength; today, there are various series of translucent papers on the market, which have different strengths and opacities.
The surface structure of glossy paper is very dense, and it has good barrier properties to oil, grease, and air. The paper is delicate and soft, and feels smooth. After wet super calendering treatment, it can make the paper surface smooth, shiny, with high tightness. The application of heat-sealing materials and barrier coatings on the paper is ideal. For example, materials such as polyvinylidene chloride (PVDC), polyethylene (PE), silica gel, hot-melt materials, and waxes have been obtained on translucent paper. Successful application. In the specific application, translucent paper can also be modified to make it suitable for any type of ink and printing machine (or suitable for various printing methods, strength requirements).
Translucent paper contains no filler and its opacity is very low. For this type of translucent paper, depending on weight and end use, it can be copied to a series of translucent papers with different opacities.
Paper bags, envelopes, and cartons are now printed on this unfilled translucent or bleached translucent paper. There is also a pigment-filled translucent paper in which a filler such as titanium dioxide TiO2 is added to block the passage of light through the paper.
The translucent papers are described below in terms of their physical properties, papermaking properties, and print processing properties.
Physical properties
Although translucent phenomenon is a negligible phenomenon in nature, translucent paper with translucent characteristics can make printed graphic information more clear, products more mysterious, and outer packaging more attractive. The semitransparent paper originally on the market has a high degree of transparency (low opacity) and low strength; today, there are various series of translucent papers on the market, which have different strengths and opacities.
The surface structure of glossy paper is very dense, and it has good barrier properties to oil, grease, and air. The paper is delicate and soft, and feels smooth. After wet super calendering treatment, it can make the paper surface smooth, shiny, with high tightness. The application of heat-sealing materials and barrier coatings on the paper is ideal. For example, materials such as polyvinylidene chloride (PVDC), polyethylene (PE), silica gel, hot-melt materials, and waxes have been obtained on translucent paper. Successful application. In the specific application, translucent paper can also be modified to make it suitable for any type of ink and printing machine (or suitable for various printing methods, strength requirements).
Translucent paper contains no filler and its opacity is very low. For this type of translucent paper, depending on weight and end use, it can be copied to a series of translucent papers with different opacities.
Paper bags, envelopes, and cartons are now printed on this unfilled translucent or bleached translucent paper. There is also a pigment-filled translucent paper in which a filler such as titanium dioxide TiO2 is added to block the passage of light through the paper.