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What are the characteristics of PET glue box?

What are the characteristics of PET glue box?

2016/01/29 14:55

  What are the characteristics of PET plastic box? PET plastic box performance of raw materials PVC, PTE, PP determines the quality of printing ink, only the good performance of the raw materials, in order to obtain a better printing color effect. Therefore, a correct understanding of PET plastic box performance relationship with color printing, printing products, according to the characteristics of process conditions, the selection of raw materials of high quality printing, has important practical significance to improve the quality of products.

  What are the characteristics of PET plastic box?

  1, plastic box smoothness and color effect

  Smoothness is technical indexes PET plastic box convex surface is the degree of physical quantities of plastic box surface smooth and uniform degree, namely under the condition of certain vacuum, so that a volume of air from the plastic box test sample surface under certain pressure and the smooth glass surface flowing between the time required to measure the unit in seconds. The number of seconds the higher smoothness and better glue box. Plastic box smoothness better, the contact surface between the printing and printing materials, but also more uniform and complete layout (letterpress) or blanket ink layer to transfer more fully, printing color effect is better.

  On the other hand, plastic box material smoothness is poor, uneven ink transfer, is not sufficient, and the material surface penetration of the ink color is strong, the effect is also poor, tend to make printing inks, hair color hair. Therefore, the printing of fine products, the finer the wire, the smaller the dot diameter, the more smooth the use of good plastic box printing raw materials, so as to make the manuscript reproduction good.

  2, plastic boxes of gloss and color effect

  PET glue box gloss refers to the plastic box surface specular reflection degree, expressed in percentage. Plastic box of the high gloss, the surface can reflect light like a mirror like, more can show the appearance of bright. In fact, plastic box surface in addition to specular reflection, there are diffuse reflection, so that plastic box gloss decline. Plastic boxes of raw materials of high gloss, printing inks and ink or more vivid, visual effect. It can be said that the more smooth plastic box raw materials, the higher the gloss, the higher the gloss color prints.

  Glue box raw material gloss and smoothness has a close relationship, but gloss is not smooth, the raw material glossy surface, not necessarily smooth surface. From the plastic box raw material gloss characteristics, according to the characteristics of the printing box selection of appropriate raw materials for printing, very practical significance. Such as the layout of the text based books and periodicals, should choose the gloss of the general paper, so as not to reflect, so long time to see the eyes do not produce fatigue. And to the printing plate layout, should choose the high gloss PVC, PET, PP materials, printing ink evenly, thick, bright eye.