Three-dimensional water-absorbing and water-locking hand towel and preparation method thereof

A paper towel and water-locking technology, which is applied in chemical instruments and methods, household appliances, machining/deformation, etc., can solve the problems that it is difficult to achieve rapid and large water absorption, increase the production cost of paper towels, and reduce the water absorption of paper towels. , to achieve the effect of improving the speed of water absorption and the range of diffusion, fewer layers, and reducing the use of paper

CN114224218APending Publication Date: 2022-03-25山东融诚纸业有限公司
4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2022-03-25

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a three-dimensional water absorbing and locking paper towel and a preparation method thereof.The three-dimensional water absorbing and locking paper towel comprises upper surface layer paper and lower surface layer paper, and corresponding protruding bonding points are evenly distributed on the upper surface layer paper and the lower surface layer paper; the upper surface layer paper and the lower surface layer paper are combined together through the protruding bonding points to form a plurality of water locking cavities. The gram weight of the three-dimensional water absorbing and locking paper towel is larger than or equal to 16 g / m < 2 >. The surface density of the water locking cavities is 324900 / m < 2 >; the four protruding bonding points of the upper surface layer paper and the four protruding bonding points of the lower surface layer paper are correspondingly bonded together through a bonding agent to form a shrinkage cavity. The upper surface layer paper and the lower surface layer paper are both long-fiber raw pulp paper. According to the invention, the two layers of paper are bonded by the bonding agent through the bonding points through physical point pressing of the single-layer paper, so that the water-locking cavity is formed between the bonding points, the water-absorbing and water-locking functions of the paper towel are fully embodied, and a large amount of water is rapidly absorbed.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of paper towels, in particular to a three-dimensional water-absorbing and water-locking paper towel and a preparation method thereof. Background technique

[0002] Paper towels are generally produced by combining one to three layers of paper to form a paper towel. The existing bonding process is to press the layers together by point-to-concave or point-to-flat between the layers of paper. It just forms wrinkles on the surface of the paper, which only has the function of absorbing water and has no function of locking water.

[0003] Many companies achieve the purpose of water absorption by making paper thick, but this only makes the place where the paper is in contact with water wet, it is difficult to achieve fast and large water absorption effects, and making paper thick or using multi-layer paper will increase the friction. The production cost of toilet paper, and waste of resources. However, if the pap...

Examples

Embodiment 1

[0045] Mix 20g of starch, 10g of polyethylene glycol, 5g of chitosan, 1.0g of a leveling agent, and 60g of water evenly, heat at 50°C for 25min under stirring, and obtain a binder after the reaction is completed.

Embodiment 2

[0047] Using a gluing compound embossing machine (FH-2850 purchased from Dongguan Zhihong Machinery Manufacturing Co., Ltd.), two 1m 2 The long-fiber wood pulp paper is placed up and down to obtain an upper surface paper and a lower surface paper, embossing is downward on the upper surface of the upper surface paper, and embossing is upward on the lower surface of the lower surface paper. 324900 embossing points, that is, raised bonding points, are evenly distributed on each long-fiber virgin pulp paper.

[0048]The binder prepared in Example 1 is evenly coated on each raised bonding point on the long-fiber virgin pulp paper, and the upper surface paper and the lower surface paper are oppositely bonded together, and the binder consumption is 2g / m 2 . Rewinding, cut into paper towels with specifications of 215mm*205mm, such as image 3 shown.

[0049] In the present invention, although the water content of the adhesive is relatively large, the bonding point is very small, ...