Kraft paper, as a tough and water-resistant packaging paper, brownish yellow, the use is also very common, often used in the manufacture of paper bags, envelopes, workbooks, etc.. Nowadays, as modern society pays more and more attention to environmental protection, kraft paper because of its recyclable application, strong and durable characteristics and get a lot of consumers love, but in the use of kraft paper will encounter various problems, such as hardness problems. So, what is the cause of the incursion?
Kraft paper packaging box production first from the kraft paper raw materials to start the analysis, plant pulp is the raw material of the kraft paper base, also means that plant fibers constitute the kraft paper, which is artificially cultivated out of the sulfate coniferous wood pulp is the raw material used in most kraft paper. Kraft paper packaging hardness depends on the content of plant fibers, high fiber content is high kraft paper hardness.
Generally speaking, the same gram of kraft paper or perhaps its hardness will be different, the elements that cause this is mainly due to the pulp. Because the original material of kraft paper is plant fiber, the main trunk of the tree local wood fiber content is the highest, so the manufacturing of kraft paper hardness is the highest, that is, we often say that the pure wood pulp kraft paper.
However, kraft paper also has recycled paper, recycled kraft paper will add bark, rags and other materials, hardness will be defective. Summarize the hardness of kraft paper depends on the content of the paper wood fiber, the higher the content of the paper hardness is better. The content of different kinds of tree fibers is different, the content of tree fibers in different regions is also different, thus made of pulp after the consumption of kraft paper hardness will also be different. Thus, to reach the hardness for the same, using the same batch of kraft paper is the best.
What is the difference between kraft paper grades?
Kraft paper is a very tough and waterproof wrapping paper. It is brown in color and has a wide range of uses.
Kraft paper is environmentally friendly, recyclable and cost saving. With the continuous penetration of the concept of environmental protection, the demand for kraft paper is increasing, and it is increasingly sought after by consumers and the market. So, how do the grades of kraft paper differentiate?
Usually, different kraft paper can be divided into grade A, grade B, grade C, etc. according to its quality.
Grade A: Kraft paper is usually made of pure wood pulp. The quality of kraft paper is relatively close, relatively uniform thickness, good toughness, and has good compression resistance, tensile strength, tear resistance, puncture resistance, folding resistance and water resistance. Smooth, with more even ink absorption and less powder and lint on the surface.
Grade B: Kraft paper is usually recycled kraft paper. Although it is relatively inexpensive, it can meet some low demand for printing materials. For example, single-color printing or printing materials with less ink can use B grade kraft paper.
Grade C: Kraft paper is basically made from recycled kraft paper, which is then re-pulped into pulp by the manufacturer’s recycled waste paper material and processed through various processes. Used as ordinary wrapping paper, can not be used for printing, so the cheapest price.
There are many factors that affect the price of kraft paper tape, but what are the factors that usually affect the price of kraft paper tape?
That is, what factors almost determine the price of kraft paper tape, as a practical matter, usually affect the price of kraft paper tape used raw materials, production processes and quality requirements mainly determine and affect the price of kraft paper tape, the following details.
A, kraft paper tape production of raw materials on the impact of the cost price
Kraft paper tape used raw materials have the greatest impact on the price of kraft paper tape, generally speaking, kraft paper tape commonly used raw materials are coniferous pulp, bamboo pulp, broadleaf pulp and waste pulp, etc., generally speaking, the use of coniferous pulp production of kraft paper tape prices are higher than other pulp, while the use of different grades of raw materials produced kraft paper tape price difference is also relatively large, such as the same use of bamboo pulp production of kraft paper tape, with High-grade bamboo pulp production of kraft tape prices are on the high side, the quality is also better, while the raw materials used in kraft tape is usually mixed, such as for fine high-strength kraft tape is usually only unbleached sulfate coniferous wood pulp, and ordinary kraft tape products in order to balance the cost is usually a mixture of wood pulp plus waste pulp, the ratio between the different raw materials used on the price of kraft tape has the greatest impact.
Second, the production process and kraft paper tape itself requires different kraft paper tape prices have a greater impact
Different levels of production process has a certain impact on the price of kraft paper tape, different levels of production process contains very many elements, such as color, tightness, thickness and uniformity control standards are different, the cost of the production process of kraft paper tape is not the same, uniformity requirements, positive and negative gram difference requirements of the more stringent, the same time under the kraft paper tape production at the end of the month, while the low gram kraft paper tape production costs Often higher than the high grammage kraft paper tape.
Third, other factors affecting the cost of kraft paper tape
The last factor that has a greater impact on the price of kraft paper tape is the cost of labor and environmental requirements, with the rising cost of labor and national environmental policies continue to tighten, accompanied by the rising cost of kraft paper tape production, out of this, some special areas need to customize kraft paper tape products, there will be a small production of kraft paper tape products, this time belongs to personalized custom The kraft paper tape, the price is also on the high side.
Overall, the factors that affect the price of kraft paper tape, excluding raw materials, processes and quality levels, such as logistics costs are relatively fixed, only the first three points are variables and maximum impact.