A variety of packaging materials oftenused by people in everyday life. Their range is quite diverse. These include polyethylene, air bubble film, cardboard, foam-plastic, plastic packaging, paper-craft, and much more.
Benefits
Translated from the German word "craft"means "strength", "power". Indeed, the paper of this grade is distinguished by high strength characteristics, including such indicators as resistance to fracture, punching.
Production technology
Manufacturing technology high-strength wrappingThe paper has been known since 1852, but the production of this packaging material became industrial only a century later. From the United States, where craft paper was first invented, the method of its production spread throughout the world. The basis for the manufacture is a long fiber pulp, which is obtained from wood as a result of sulphate cooking, known as the Kraft process. It is the wood base that provides high strength characteristics and resistance of the paper to mechanical damage, and in addition, it allows for the further use of this material as a secondary raw material.
Kinds
The color of kraft paper depends on the quality of the pulp,which is part of it. Brown paper is obtained from unbleached wood, and a range of shades from light yellow to white gives bleached raw materials. This packaging material serves for the manufacture of corrugated cardboard, convenient paper bags, bags, boxes, as well as envelopes. In addition, paper-craft is produced in rolls and sheets of different sizes.
Материал имеет малый объем и вес, прост в using. All products are characterized by high strength, which is the higher, the higher the density of paper (in the range of 35-120 g / m2). Washable paper-craft has the highest density. Its main difference is resistance to moisture. The texture of this material resembles leather, it can be ironed, washed, stitched, so washable kraft paper is often used in the textile industry.
Application
The unique properties of this material allowuse it in many spheres of human activity, primarily as unique packaging products. What is just not packaged in high-strength bags and bags of Kraft paper! This and bulk construction materials, and food, and various items that require safety during delivery. Such durable airtight containers are reliable protection during transportation of various goods, as well as fragile items. Bulk envelopes from kraft paper for packaging mailings are very popular.
Products from this material are excellent.means of advertising, if they bear the advertising text or logo of the manufacturer. Sellers often use boxes with bright prints and colorful bags of various configurations, with or without handles, to pack goods sold to customers. 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, such as scrapbooking or for the manufacture of cards, and in typography for book covers.
The use of kraft paper in medicine
Kraft packages are widely used in medicine.They are used for packaging and temporary sterilization of medical instruments and kits of any kind. The packaging is 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 after sterilization changes color from green to pink, making it easy to determine where the sterile medical material is.
Крафт-бумага постепенно и неуклонно вытесняет synthetic packaging materials that are harmful to human health and are dangerous to the environment, which, given the unique properties and low cost of this material, no one is surprised.
