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 A kind of flow for each of the adhesive has a viscosity and surface tension of the best indicators. Any significant deviation from the best indicators of the tendency of the adhesive nature of both the quality and the application will have adverse effects. Therefore, the selected flame retardants, must consider its impact on the adhesive. Among the flame retardants, some will reduce the flow of adhesive, and some will improve the flow pattern of adhesive. Therefore, the production of flame-retardant effect of paper packaging materials, adhesives should add at least two or more flame retardants.

One must be able to reduce the flow of adhesive; the other to improve the flow of. Flame retardants based on the total amount of paper packaging to join the fire resistance may be, the ratio of various materials in order to achieve the best flow indicator shall prevail. Paper for the packaging to give a good flame retardant properties, should also adhesive viscosity, surface tension control. Such as the addition of urea in the starch-based adhesive resin, adding sodium bromide (to reduce the flow of adhesive), ammonium chloride (to enhance the flow of adhesive) the two flame retardants, can be obtained with both Good waterproof flame retardant, but also has good water-based moisture Hang the paper packaging.

Paper and paper products to achieve the technical means of flame-retardant

Impregnation method: This method is suitable for water-soluble flame retardants. The paired water-soluble flame retardant solution, impregnated into paper, the heated drying retardant paper can be obtained. The flame-retardant paper obtained poor water resistance, moisture absorption is strong, the intensity of a significant paper, easy to yellow harden. Paper impregnation method requires a very high water absorption and wet strength index, preferably impregnated crepe paper, cotton fiber paper, synthetic paper and nonwovens. The surface sizing of paper machine can be completed on or dyeing machine dipping.

Coating method: This method is applicable to insoluble or insoluble flame retardant. The fire retardant powder dispersed in certain adhesives, made of emulsion paint, then coating method to paint the surface of coated paper by heating and drying can be coated flame retardant paper. This method has the advantage of flame retardants are concentrated in the surface of paper, on the physical properties of paper is also smaller, especially for the processing needs of coated paper, the towel just joined the fire retardant paint on it The method can be completed in the coating machine. To achieve good flame retardancy, flame retardant to small and uniform grain is better. The disadvantage is the flame retardant is not ideal.

Within the Tim method: This method is suitable and water-insoluble flame retardants, flame retardants and other packing will be added to the pulp to go with, and then copy paper production. Add the site more flexible, to the headbox from the beater, or between any part of the rotary shafts can join, as long as the guarantee of their well dispersed in the slurry can be had. Similar to other fillers, slurry PH value of between 4.5-5.0, and its paper in a high retention rate. Advantage of the method is applicable to all kinds of paper production, simple process, flame retardants in the paper in more evenly distributed, so the flaming paper and uniform. More serious drawback is the loss of flame retardants, flame retardant keep the general rate of 80% on very easy. The best way to solve the loss problem is to use a suitable flow aid, the method for the production of cardboard or high fire when quantitative paper better.

New Development Fire Specialty Paper Special occasion demands a lot of paper has a high flame retardancy, such as electrical insulation materials, gas filter bags, aerospace paper, paper lunch boxes, etc. can be heated. As the paper packaging materials continue to broaden the application areas, the paper can be demanding flame retardant, flame retardant paper demand more.

Dehydration wrapping: wrapping paper, known as PS, select only through the water permeable membrane as the surface material, the use of high osmotic pressure inside the material and polymer water absorbent. The packaging does not eat the food tissue thin membrane damage, while inhibition of enzyme activity, to prevent protein degradation, reduce microbial levels to maintain the freshness of food, concentrated flavor ingredients, improve the effect of toughness.

Absorbent paper function: function absorbent paper, absorbent capacity of the biggest feature is strong, it can remain 10 times higher than the absorbent material amount of weight, and safe and benign. Absorbent paper and nonwoven fabric functional capacity and ensure water absorption were significantly different, absorbing function paper a clear asset. This is because the skills absorbent paper not only the pores between fibers in the raw materials to maintain moisture, and its fibers can be absorbent itself. Absorbent absorbent paper after the function becomes very soft. Because of these characteristics, absorbent paper used as a function of absorption ham, sausage and other food films films films absorb dripping piece fresh food and cosmetics and sanitary materials, thin films.

Acid-free archival paper and waterproof: the Golden Lotus Hunan Changde Cigarette Factory, Special Paper Co., independent research and development of new waterproof wrapping paper and cardboard (acid-free archival paper and water), fill the gap. The company began planning the project since 1996, the cumulative 3.15 million research into new waterproof packaging. According to experts, the new waterproof wrapping paper and cardboard a wide range of application.

Screen wet cardboard: Minnesota Libery Paper Co., Ltd. developed the N1-Guard wet cardboard screen, look like corrugated cardboard, are also similar to the internal mount plate, printed, recycled pulp damping system. This screen performance is in the system wet cardboard process in the chemical bonding properties due to the role of internal due, without any transformation, can save time. The board, through its intrinsic absorption of the screen to achieve good wet performance.

Water returned to work on paper: a water-resistant, good permeability characteristics, because it has no water repellency, so saturated with higher rate than other materials, the surface layer strength and high strength, there are antibacterial, but also absorbed nitrogen and so on. This feature not only by adding resin and chemicals were, therefore safe. Because of its above characteristics, can be used in food packaging materials, condensation absorbent sheets and other areas of film. The current paper has been used in food vacuum packaging combined with other materials, semi-finished products as food packaging and more water, give full play to its mold, the advantages of water absorption and water resistance.

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