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怎么区分不干胶材料的好坏?

来源:林中祥胶粘剂技术信息网2017年06月15日

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  不干胶材料被广泛运用于印刷行业,使用方法也日益成熟,不干胶材料质量也在不段的提高,当然也少不了一些劣质的假冒品,那怎样区分不干胶材料的好坏?

  Label stickers are widely used in printing industry,with increased usage and the improvement of quality. However,some inferior also exist. So how to indentify the good or bad of label sticker? Follow me!

  1.面材:即表面材料。一般来说,凡是可柔性的材料都可以作为不干胶材料的面料,面材的种类取决于最终的应用和印刷加工工艺。

  面材要能够:

  A. 适应印刷和打印,具有良好的着墨性

  B. 有足够强度能够接受各种加工

  C. 面材的表面光泽和颜色的一致性、密度的均匀性,这决定了不干胶材料吸墨的均匀性和同批标签印品的色差。

  1.Facestock: namely the surface materials. Generally speaking, any flexible material can be used as label sticker material . It depends on the kinds of the final application and printing process.The facestock should be:A. Suitable for the printing, good ink absorb qualityB. have enough strength of intensity to accept all kinds of processingC. Surface, color consistency and density uniformity, which are determined the uniformity of ink absorption and color difference of the same batch label sticker.

  2.表面涂层:

  用于改变面材的表面特性。如改善表面张力,改变颜色,增加保护层等,使其更好地接受油墨和易于打印,达到防止脏污,增加油墨粘合力以及防止印刷图文脱落的目的。

  A.表面涂布主要用于非吸收性材料,如铝箔,镀铝纸以及各类薄膜材料。

  B.涂层强度决定了印刷时是否会产生大量纸粉,是决定印刷质量的重要指标。

  Surface coating: used to alter the surface properties of facestock. Such as improve the surface tension, change color, add protective layer, etc., so to improve ink absorb ability and easy to print, aims to prevent dirt, increase ink adhesive force and prevent printing graphic falls off.A. surface coating is mainly used for the absorbent material, such as aluminum foil, aluminum plating paper and various kinds of film material.B.coating strength determines whether the printing will produce large amounts of paper powder, it’s very important in determining the quality of printing.

  3.涂底层:

  其同表面涂层一样,但是涂布在面材的背面,涂底层的主要目的是:

  A.保护面材,防止粘合剂渗透

  B.增加面料的不透光性;

  C.增加粘合剂同面材间的粘结力;

  D.防止塑料面材中的增塑剂渗透到粘合剂中,影响其粘合剂性能,导致标签的粘结力降低,标签脱落。

  Precoating: just as surface coating, but the coating is on the back of the surface material. The main purpose of precoating is: A. protect the surface of material from adhesive penetration B.strength the opaque;C. increase the cohesive force between adhesive and surface material;D. prevent plasticizer in plastic surface penetrate into the adhesive, affect its adhesive properties, it may reduce label adhesive power and then label may fall off.

  4.胶水:

  胶水是标签材料和粘结基材之间的媒介,起连结作用。按其特性可以分为永久性和可移除性两种。它有多种配方,适合不同的面材和不同的场合。粘合剂是不干胶材料技术中的最重要的成分,是标签应用技术的关键。

  Glue: glue is the medium of label materials and bonding . According to its characteristics,it can be divided into permanent and removable glue. It has a variety of recipes, suitable for different material and occasions. Glue is the most important component of label sticker.

  5.底纸:

  底纸的作用是接受离型剂涂布,保护面材背面的粘合剂,支撑面材,使其能够进行模切、排废和在贴标机上贴标。同面材一样,底纸厚度的均匀性和强度指示不仅关系到印刷性能,还是决定模切均匀性和排废时速度与纸边断裂的重要指标。

  Release paper: release paper is used to protect the adhesive on the reverse of the surface material, make it be able to die-cutting, waste, and automatic labeling . Just like the surface material, the uniformity of the thickness and and intensity of instruction is not only related to the performance of bottom paper, but also decided to die-cutting uniformity , exhaust speed and an important index of paper edge fracture.

怎么区分不干胶材料的好坏?

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