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A packaging box and its modified tear-resistant and water-resistant light-coated white-faced kraft cardboard

A kraft paper and packaging box technology, which is applied in the field of white-faced kraft paper, can solve the problems of insufficient waterproofness and inability to protect items well, and achieves good oil-proof effect, good chemical resistance stability and high production efficiency. Effect

Active Publication Date: 2018-12-28
山东金山纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above scheme well accommodates the advantages of ordinary white-faced kraft linerboard and heavy-coated paper, and enhances the strength of coated white-faced kraft linerboard. However, the above-mentioned scheme is not waterproof enough, and it cannot be well protected after being made into a high-end packaging box. What's in the box

Method used

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  • A packaging box and its modified tear-resistant and water-resistant light-coated white-faced kraft cardboard
  • A packaging box and its modified tear-resistant and water-resistant light-coated white-faced kraft cardboard
  • A packaging box and its modified tear-resistant and water-resistant light-coated white-faced kraft cardboard

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Experimental program
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Effect test

Embodiment 1

[0044] Modified tear-resistant and water-resistant light-coated white kraft cardboard, such as figure 1 As shown, the amount of coating exposed to the outside including packaging is 10~15g / m 2 The coating layer 11 of the coating layer 11, the surface layer 1 of the coating layer 11, the core layer 2 and the bottom layer 3 sandwiched in the center; the side of the bottom layer 3 away from the core layer 2 also includes a coating amount of 11g / m 2 Waterproof layer 4, the weight of the modified tear-resistant and water-resistant light-coated white-faced kraft cardboard is 230 g / m 2 ; In other embodiments, the quantitative amount of the modified tear-resistant, water-resistant, light-coated white-faced kraft cardboard can be modulated to 210-450g / m as required 2 And correspondingly adjust the coating amount of the waterproof layer 4 to 10-20g / m 2 . The ratio of the two can be controlled so that the ratio of the weight of the light-coated white-faced kraft cardboard to the coati...

Embodiment 2

[0054] Modified tear-resistant and water-resistant light-coated white-faced kraft cardboard, the difference between embodiment two and embodiment one is that the waterproof layer 4 is made of nano-titanium dioxide surface-modified tridecafluorooctyltriethoxysilane; soak the nano-titanium dioxide In an ethanol solvent, tridecafluorooctyltriethoxysilane is added to obtain nano-titanium dioxide with strong hydrophobicity and surface modification of tridecafluorooctyltriethoxysilane;

[0055] Tridecafluorooctyltriethoxysilane is a kind of bifunctional compound, which contains silaneoxyl functional group and releases low molecular weight alcohol after hydrolysis. The resulting active silanol can interact with hydroxyl groups in many inorganic and organic substrates. , carboxyl and oxygen-containing groups produce chemical bonds, making it easier to modify the substrate; its inert and low surface energy groups can make the treated nano-titanium dioxide have extremely low surface ener...

Embodiment 3

[0057] A box such as figure 2 As shown, it is assembled from the modified tear-resistant and water-resistant light-coated white-faced kraft cardboard in the above scheme. The packaging box includes six groups of 12-piece packaging boxes with lightly coated white-faced kraft cardboard for sealing 5, combined with image 3 The sealing part 5 is formed on the side of the bottom layer 3 close to the waterproof layer 4 and has a groove 51 and a protrusion 52 that are inserted into each other through a mould, so as to realize the rapid sealing of the modified tear-resistant and water-resistant light-coated white-faced kraft cardboard. Dislocation is not easy to occur when hot-melt sealing is performed, which affects the aesthetics of the seal;

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Abstract

The invention discloses a packing box and modified tearing-resistant waterproof slightly pigmented white-surface craft paper thereof, and aims to solve the problems that existing coated white-surface craft paper is insufficient in waterproofness, and after the existing coated white-surface craft paper is prepared into a top-grade packing box, articles in the packing box cannot be protected. According to the technical scheme, the modified tearing-resistant waterproof slightly pigmented white-surface craft paper comprises a coating layer, a surface layer, a core layer, a bottom layer and a waterproof layer, wherein the coating layer is exposed outside during packing; the surface layer coats the coating layer; the core layer is sandwiched in the center; the waterproof layer is positioned on one side, which is away from the core layer, of the bottom layer; the quantification of the modified tearing-resistant waterproof slightly pigmented white-surface craft paper is 210-450 g / m<2>; and the coating amount of the waterproof layer is 10-20 g / m<2>. By the waterproof flayer, the waterproof performance of the modified tearing-resistant waterproof slightly pigmented white-surface craft paper is improved, and the articles in the packing box can be protected well; the modified tearing-resistant waterproof slightly pigmented white-surface craft paper only has one waterproof layer, the waterproof property is realized, furthermore, process and materials are reduced, and process production cost and material cost are saved.

Description

technical field [0001] The invention relates to the field of white-faced kraft cardboard, more specifically, it relates to a packaging box and its modified tear-resistant, water-resistant and light-coated white-faced kraft board. Background technique [0002] White-faced kraft linerboard has high strength and high whiteness on one side. White-faced kraft linerboard is a variety of boxboard, and it is mainly used to make cardboard surface paper for relatively high-end carton packaging. It usually includes a surface layer, a lining layer and a bottom layer. Due to the layered structure, the surface layer, lining layer, and bottom layer can use different fiber pulps. For example, the surface layer can use primary wood pulp, and the remaining layers can use Secondary fiber pulp, therefore, the production cost of white-faced kraft linerboard is low, and the pollution load of pulping is small, which is very suitable for the national conditions of my country's lack of natural wood r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/16D21H23/56D21H27/18
CPCD21H21/16D21H23/56D21H27/18
Inventor 甘昂英
Owner 山东金山纸业有限公司
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