A waterproof and flame-retardant corrugated box and its production process
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A corrugated box and corrugated paper technology, which is applied in the field of waterproof and flame-retardant corrugated box and its production technology, can solve the problems of major fire safety hazards, etc., and achieve the effects of improving mechanical properties, good waterproof performance, and improving hydrophobic performance
Active Publication Date: 2021-11-30
浙江一鸣包装印刷有限公司
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Problems solved by technology
In the warehousing and transportation process of e-commerce, logistics, and express delivery industries, a large number of corrugated boxes are piled up, which poses a great fire safety hazard
Method used
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Embodiment 1
[0049] The dipping solution is prepared by the following method:
[0050] Slowly add the silica sol to the NaOH solution (30% by mass fraction) at a constant temperature of 75°C and 80r / min magnetic stirring, stir magnetically for 50min after the addition, and then add methyl cellulose and nano-TiO 2 , and continue to stir for 30 minutes to obtain an impregnation solution;
[0051] Silica sol, NaOH solution, methyl cellulose and nano TiO 2 The dosage ratio is 10:2:0.5:0.2.
Embodiment 2
[0053] The dipping solution is prepared by the following method:
[0054] Slowly add the silica sol to the NaOH solution (30% by mass fraction) at a constant temperature of 75°C and 90r / min magnetic stirring, and stir magnetically for 60 minutes after the addition, then add methyl cellulose and nano-TiO 2 , and continue to stir for 40 minutes to obtain an impregnating solution;
[0055] Silica sol, NaOH solution, methyl cellulose and nano TiO 2 The dosage ratio is 10:2:0.5:0.2.
Embodiment 3
[0057] Coatings used for functional coatings are prepared by the following methods:
[0058] (1) Add polychirolactone polyol and succinic anhydride in a three-necked flask, then add an appropriate amount of organotin catalyst, react at room temperature for 24 hours, then add N-aminoethyl-3-aminopropyltriethoxysilane, and add High temperature to 75°C, react for 10h to prepare modified polyurethane resin;
[0059] Wherein, the ratio of the amount of substances used in polychirolactone polyol and succinic anhydride is 1.2:1; the addition amount of N-aminoethyl-3-aminopropyltriethoxysilane and organotin catalyst is respectively 4% and 0.1% of mass;
[0060] (2) adding the modified polyurethane resin into an aqueous solution of acetic acid with a mass fraction of 5%, then adding a small amount of methanol, and magnetically stirring for 3 hours to obtain a modified polyurethane emulsion;
[0061] The mass ratio that modified polyurethane resin, acetic acid aqueous solution and met...
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Abstract
The invention discloses a waterproof and flame-retardant corrugated box, which is made of waterproof and flame-retardant corrugated paper. The corrugated paper includes a base paper and a functional coating coated on the surface of the base paper. The base paper is modified by impregnating liquid; the corrugated paper The production process of the box is as follows: the first step, immerse the base paper in the impregnation solution, and dry it after ultrasonic; the second step, evenly coat the coating on the surface of the impregnated base paper, cure, and process it with corrugated rollers; the third step, nail box. In the present invention, the base paper is treated by impregnating the impregnating liquid, and the active ingredients in the impregnating liquid have a strong binding force with the fibers of the base paper, which can not only give full play to the flame retardant performance, but also form a cross-linked network structure to improve the mechanical properties of the base paper ; After being coated with functional coatings, the corrugated paper has good waterproof performance; moreover, the impregnating liquid and the raw materials of functional coatings are all environmentally friendly raw materials, and the base paper itself is made of ordinary wood. Therefore, the obtained corrugated paper is easy to degrade characteristics, in line with environmental protection requirements.
Description
technical field [0001] The invention belongs to the field of corrugated paper boxes, and in particular relates to a waterproof and flame-retardant corrugated paper box and a production process thereof. Background technique [0002] Corrugated paper is a plate made of liner paper and corrugated corrugated paper formed by processing corrugated sticks. It has the advantages of low cost, light weight, easy processing, high strength, excellent printing adaptability, and convenient storage and transportation. Corrugated cartons made of corrugated paper can be used as packaging for food or digital products, and are widely used. [0003] Because the main component of corrugated paper is paper fiber with strong water absorption, it is easy to be affected by moisture. When it is applied to food materials that need to be stored dry, its waterproof performance will affect the quality and shelf life of the materials in the package. The surface of corrugated paper is coated with waterpro...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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