Dye Sublimation Transfer Paper, Those You Know About Kraft Paper

Kraft paper, if you don't pay attention to it, will usually be regarded as kraft paper. To be honest, this paper is somewhat similar to kraft paper in appearance. Therefore, it is not strange to admit mistakes. There are many types of kraft paper, generally brown. Its types include ordinary kraft paper, coated kraft paper, noodle kraft paper, single-sided kraft paper, double-sided ox card. It is mostly used for packaging paper in industries such as electronics factories and food factories.

So question one, what is the difference between kraft paper and kraft paper?

Kraft paper introduction

Kraft paper is used as a packaging material. The intensity is high. Usually yellowish brown. Semi-bleached or fully bleached kraft pulp is light brown, cream, or white. Quantitative 80～120g/m2. The fracture length is generally above 6000m. The tear strength, rupture work, and dynamic strength are high. Using kraft softwood pulp as raw material, it is made by beating on a Fourdrinier paper machine.

Kraft paper is a tough, water-resistant packaging paper. It is brown and has a wide range of uses. It is often used to make paper bags, envelopes, workbooks, record sleeves, files, and sandpaper. There are differences between roll paper and flat paper, as well as single-sided light, double-sided light, and striped paper. The main quality requirements are flexibility and strength, high burst resistance, and the ability to withstand greater tension and pressure without breaking. Kraft paper has high tensile strength, such as single gloss, double gloss, stripes, and no grains.

There are a few differences in general:

1. Weight: The base paper that weighs more than 150g is called kraft paper, and the weight below 150g is generally called kraft paper. Generally speaking, the heavier the weight, the greater the hardness of the paper, so kraft paper is harder than kraft paper.

2. Purpose: Kraft paper is mainly used in printing and packaging factories, carton factories, and other industrial aspects; kraft paper is mainly used in daily life such as paper bags, envelopes, and homework.

3. Price: Kraft paper is thinner than kraft paper, and kraft paper is more expensive than kraft paper when calculated per sheet, but if it is calculated by bundles (stacks) and tons, the opposite is true. Because the thicker the paper, the fewer times the surface needs to be treated, and the lower the cost

Question two, in terms of packaging, kraft paper, and corrugated paper are better?

Kraft paper is suitable for ordinary things, and corrugated paper is suitable for square extrusion and fragile varieties. Therefore, there is a difference between the two in the scope of use.

Question 3: What are the ghost of A-level kraft paper and AA-level kraft paper?

Kraft paper generally has a higher number of grams, called kraft paper A grade and AA grade kraft paper, which is also the difference in quality. If you want to know more information about kraft paper and kraft paper, you can pay more attention to the official website of kraft paper.

Question three, what are the main points that should be paid attention to when purchasing kraft paper?

Because kraft paper is the original color paper, and the production process is relatively rough, especially the cardboard paper, refined kraft paper, etc., the color difference is very serious. Different sources of raw materials, different production batches, different production seasons, and many other factors will affect the color orientation of the finished kraft paper, and there is no regularity to be found.

Whether you are selling kraft paper or buying kraft paper products, you should be cautious about the color difference of kraft paper. The word vaccination should always be kept in mind and on your lips. From the beginning of the inquiry to the proofing, the color difference should be instilled layer by layer. The problem makes customers realize that this problem cannot be overcome.

Question five, how to control the uniformity of kraft paper?

The kraft paper should be a three-layer slurry, and there will be no problems with poor uniformity. First, the net concentration of the bottom slurry and the ratio of the speed of the slurry to the network should be adjusted properly. Second, the composite with the core slurry is better, which can improve the bonding force between the layers. , The evenness of the dough determines the finish of the paper surface.