Kraft paper. Packaging material of the present and future

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2022-03-03 23:43:49

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A variety of packaging materials are often used by people in everyday life. Their assortment is quite diverse. This is polyethylene, and bubble wrap, and cardboard, and foam, and plastic containers, and kraft paper, and much more. Kraft paper in rollsImportant criteria when choosing a material for packaging are durability, convenience, aesthetic appearance, environmental friendliness. The latter criterion is especially relevant nowadays, because a huge amount of packaging materials is thrown into landfills every day, and the issue of their proper disposal is vital for environmental safety. Particularly durable kraft wrapping paper used for packaging purposes and the manufacture of various paper products satisfies the above requirements as much as possible.

Advantages

Translated from German, the word "craft" means "strength", "might". Indeed, the paper of this grade is characterized by high strength characteristics, including such indicators as resistance to fracture, punching. Kraft paper bagsPackaging made of this material adheres well, does not swell when wet, has air permeability and resistance to temperature changes. Kraft paper is of natural origin, which indicates its ecological purity.

Production technology

The technology of manufacturing high-strength wrapping paper has been known since 1852, but the production of this packaging material acquired an industrial scale only a century later. From the USA, where kraft paper was first invented, the method of its production spread all over the world. The basis for manufacturing is long-fiber cellulose, which is obtained from wood as a result of sulfate cooking, known as the kraft process. It is the wood base that provides high strength characteristics and resistance of paper to mechanical damage, and in addition, makes it possible to further use this material as a secondary raw material.

Kraft paper envelopes

Types

The color of kraft paper depends on the quality of the pulp that is included in its composition. Brown paper is obtained from unbleached wood, and the range of shades from light yellow to white gives bleached raw materials. This packaging material is used for the manufacture of corrugated cardboard, convenient paper bags, bags, boxes, and envelopes. In addition, kraft paper is produced in rolls and sheets of different sizes.

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The material has a small volume and weight, easy to use. All products are characterized by high strength, which is higher the higher the paper density (in the range of 35-120 g /m2). Washable kraft paper has the highest density. Its main difference is its resistance to moisture. The texture of this material resembles leather, it can be ironed, washed, sewn, so washable kraft paper is often used in the textile industry.

Kraft paper

Application

The unique properties of this material allow it to be used in many spheres of human activity, primarily as unique packaging products. What is not packed in high-strength bags and kraft paper bags! These are bulk building materials, food, and various items that require safety during delivery. Such a strong airtight container is a reliable protection during transportation of various goods, as well as fragile items. Bulky envelopes made of kraft paper for packaging postal items are very popular.

Products made of this material become an excellent means of advertising if they are marked with an advertising text or the manufacturer's logo. Sellers often use boxes with bright prints and colorful packages of various configurations, with or without handles, to stack the goods sold to the buyer. Such attractive packaging not only reminds customers of pleasant purchases, but can also serve them for a long time for any purpose.

Colored kraft paper is also used for decorative and artistic works, for example in scrapbooking or for making postcards, and in printing - for book covers.

Kraft paper envelopes

The use of kraft paper in medicine

Kraft bags have found wide application in medicine. They are used for packaging and temporary sterilization of medical instruments and kits of any kind. The package is hermetically sealed with an adhesive strip. When closed, the bags are impermeable to microorganisms for about 50 days. The indicator on the outside of the package changes color from green to pink after sterilization, which makes it easy to determine where the sterile medical material is located.

Kraft paper is gradually and steadily replacing synthetic packaging materials that are harmful to human health and dangerous to the environment, which, given the unique properties and low cost of this material, does not surprise anyone.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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