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Bread Bag

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Bread Bag Introduction

Laminated paper is commonly used for bread bags. Laminated paper is a composite material in which plastic particles are coated on the surface of the paper through a casting machine. The main feature is that the composite material is oil-proof, waterproof (relative), and heat-sealable. Different uses have different characteristics: when used for packaging hamburgers and bread, take their oil-proof properties.


Pay Attention to the Selection of Bread Bags

In terms of selection of bread bags, cost, product quality, production process, characteristics of the products prepared, and use conditions are mainly considered.


  • Cleanliness. It refers to the cleanliness and cleanliness of the surface. Because the production environment of release paper manufacturers is different, most of them are not dust-free studios. Due to cost issues, it is not possible to use dust-free studios. Generally speaking, it is an ordinary factory building. A little better will have many improvements in environmental protection and environment, which will affect the cleanliness. So when choosing a bread bag, you should study the product description carefully to understand it clearly.


  • The degree of release refers to the degree of release of the release paper, there is no absolute value at this point, depending on the formula of each manufacturer to determine. When people choose, they can choose the bread bags with the corresponding release degree according to their own needs.


  • Peeling force. Peeling force refers to whether it is easy when the product is torn off. Of course, there are strict test standards. When you choose, on the one hand, you must meet national standards. On this basis, choose the right one.


  • The production process. The focus here is whether to punch or cut. Generally, when punching or cutting, the thickness of bread paper is required, because low-gram bread paper is not easy to be punched when used for stamping. It is also related to the fragility of the backing paper. The backing paper with poor fragility will tear the paper and the product when punching or cutting. It can not achieve the desired or desired effect.


An Assortment of Bread Bags

Bread bags generally use coated paper. The classification of coated paper can be classified according to plastic release paper and non-plastic release paper; silicone release paper and non-silicon release paper can also be classified according to release agents.


  • Liner release paper

After the base paper is coated, a release agent is coated on the coated surface to produce a release paper.

Because the paper surface has paper wool and fibers, the coating must reach a certain amount to ensure that there is no penetration point, to ensure that the silicone oil does not penetrate into the paper, and to ensure that there is no poor peeling. Generally, the amount of coated paper is 16 grams per square meter. It is said that Wenzhou has achieved 11 ~ 13 grams per square meter, which is quite close to the data of advanced foreign equipment. Theoretically, as long as the tape can be peeled from the release paper, the lower amount of coating is acceptable.


The laminated release paper is divided into single and double leaching. Generally, the single-sided release paper is single-leafed. Of course, there are also double-leaf single-sided release papers, because the release film is generally thicker at 20 grams, and the non-releasing surface is generally 15 grams thinner. smooth.


  • Glassine release paper

Release paper produced by glassine base paper coated with a release agent after overpressure.

Glassine is extremely compact because of super calendering, which is especially suitable for die-cutting processing plants.


  • CCK release paper

CCK base paper is a release paper produced by coating a layer of special clay on the surface and then applying a release agent.

Because of its excellent high-temperature resistance, it is widely used in the carbon fiber industry.


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