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Large kraft paper bags -- the characteristics and types

Author : Mark Scarbrough
Update time : 2021-08-26 17:49:40
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  Large kraft paper bags are non-toxic, tasteless, pollution-free, in line with national environmental protection standards, with high strength, high environmental protection, is one of the most popular environmental protection packaging materials in the world. Kraft paper bags are more and more widely used in supermarkets, shopping malls, shoe stores, clothing stores and other places of shopping, generally there will be kraft paper bags supply, convenient for customers to carry the purchase of goods. The kraft paper bag is a kind of environmental protection packaging bag, has many advantages, and its variety.
  large kraft paper bags
  Features of large kraft paper bags
  The kraft paper bag is made of wood pulp paper as the base material, and the color is divided into white kraft paper and yellow kraft paper. The paper can be coated with a layer of PP material to play a waterproof role. The strength of the bag can be made into one to six layers according to the requirements of customers, and the printing and bag making are integrated. Opening and sealing methods are divided into heat sealing, paper sealing and lake bottom. Therefore, it has the following characteristics.
  (1) Strong air barrier performance, oxidation prevention, waterproof, moisture-proof.
  (2) Strong mechanical properties, high blasting resistance, puncture resistance and tear resistance.
  (3) High temperature resistance (121℃), low temperature resistance (-50℃), oil resistance, good incense preservation performance.
  (4) Non-toxic and tasteless, in line with food and drug packaging hygiene standards.
  (5) Good heat sealing performance, softness, high barrier performance.
  
  Types of kraft paper bags
  Kraft paper bags, also known as kraft zipper bags, kraft bone chain bags. Kraft paper ziplock bags are more and more widely used. In supermarkets, shopping malls, food stores, health products stores and other places, generally there will be kraft paper bag packaging products, kraft paper zisealed bag is a kind of environmental protection packaging bag, mainly used for packaging: dried fruit, snack food, dried meat products, cereals, health products, tea and other food. Related categories are: kraft paper zipper bag, paper aluminum composite zipper bag, aluminum plastic self-supporting zipper bag, electrostatic shielding zipper bag, grid electrostatic zipper bag, anti-vibration electrostatic zipper bag, static electroplating aluminum zipper bag and various daily zipper bags, etc.
  1: According to the material can be divided into: pure kraft paper bag, paper aluminum composite kraft paper bag, woven bag composite kraft paper bag (general bag type is larger)。
  2 according to the bag type can be divided into: three side sealing kraft paper bag, side organ kraft paper bag, standing kraft paper bag, zipper kraft paper bag, standing zipper kraft paper bag.
  3. According to the appearance of the bag, it can be divided into: valve pocket, square bottom bag, sewing bottom bag, heat sealing pocket, heat sealing square bottom bag
  4. According to the function classification: high Yin diaphragm bag, cooking film bag, anti-static film bag, anti-bacterial film bag, anti-fog film bag, vacuum bag, anti-chemical film bag, deoxygenation packaging film bag, atmosphere packaging film bag.
  
  Production methods
  Because of its environmental protection characteristics, kraft paper bags are favored by the public, especially in European countries almost all use kraft paper bags.
  1.Small white kraft paper bags, generally the number of this kind of bags, a wide range of use, because many businesses require this kind of kraft paper bags cheap and durable, usually this kind of kraft paper bag is machine shaped, machine stick rope, completely operated by the machine.
  2.Medium kraft paper bag, under normal circumstances, after the medium is a kraft paper bag machine joint forming after people manually paste the rope and made into a kraft paper bag, because the molding equipment by forming a kraft paper bag size is limited, and rope machine can stick a small bag of a kraft paper bag rope, so the practice of a kraft paper bag is limited by a machine. Many bags cannot be produced by the machine alone.
  3.Large kraft paper bags, thick kraft paper bags, these kraft paper bags are made in hand, at present there is no domestic machine to solve the formation of these kraft paper bags, can only be made by hand, this kind of kraft paper bags production cost is high, the number is not many.
  
  No matter what kind of kraft paper bags above, if the number is not much, it is generally made by hand, because the machine makes kraft paper bags wear and tear, which will cause excessive waste. Hyde offers kraft paper bags in all sizes, including large kraft paper bags.

 
Mark Scarbrough
Food Packaging R&d Manager
Participated in paper product requirements and design reviews for many years, and has rich experience in product performance research
Click to contact me
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