CN213940581U - Household paper - Google Patents

Abstract

The embodiment of the utility model provides a household paper, household paper includes the body, the body include surface course, bottom and basic unit, the body on be provided with a plurality of knurling units, knurling unit including set up on the surface course by the first knurling pattern of first indentation constitution, set up on the basic unit by the second knurling pattern of second indentation constitution and set up on the bottom by the third knurling pattern of third indentation constitution, wherein, the projection of second knurling pattern on the surface of body is located between the projection of third knurling pattern, first knurling pattern on the surface of body, and the density of second indentation is greater than the density of first indentation and each layer of third indentation, can balance the difference of paper ration or intensity on the one hand, can increase absorption rate on the two sides, accelerate the diffusion rate of liquid in multilayer paper, the rate that the trilateral can reduce liquid and permeate through the body, so that the user can easily keep the hands dry.

Description

Household paper

Technical Field

The utility model relates to a household paper, in particular to knurling household paper.

Background

Daily-use paper such as toilet paper, napkin paper, kitchen paper and the like are indispensable daily necessities of people at present. There are increasing demands on the quality of paper, including, for example, water absorption, feel, functionality, and appearance.

In order to meet the quality requirements of people, manufacturers of household paper utilize embossing technology to press various patterns on various types of household paper, so that the manufactured paper has more beautiful appearance, and the effects of increased thickness, increased surface area, enhanced wiping capacity, higher softness and the like are achieved. Particularly, under the condition that consumers are more interested in the aspect of paper softness at present, when the existing embossing technology is used for realizing the softness, the damage to the fiber structure of the paper is inevitable, and in addition, the existing embossing technology cannot realize good balance and compromise in the aspects of paper strength, softness, water absorption, paper touch and the like.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a household paper solves among the prior art strength, compliance, hydroscopicity and the paper sense of touch subalternation technical problem of household paper.

The embodiment of the utility model provides a paper for daily use, paper for daily use includes the body, the body include surface course, bottom and press from both sides the basic unit of establishing between surface course, bottom, the body on be provided with a plurality of knurling units, knurling unit including setting up the first knurling pattern that constitutes by a plurality of first indentation adjacent row on the surface course, set up the second knurling pattern that constitutes and set up the third knurling pattern that constitutes by a plurality of third indentation adjacent row on the bottom by a plurality of second indentation adjacent row on the basic unit, wherein, the projection of second knurling pattern on the surface of body is located third knurling pattern, first knurling pattern and is in between the projection on the surface of body, and the density of second indentation is greater than the density of first indentation and third indentation.

Further, the surface layer and the bottom layer are made of wood pulp cellulose fiber paper, and the base layer is made of straw pulp, straw pulp or bamboo pulp cellulose fiber paper.

Further, the basis weight or tensile strength of the base layer is greater than that of the top layer and the bottom layer.

Furthermore, the surface of the body comprises a first surface and a second surface, the first surface is the surface of the surface layer on the side away from the base layer, the second surface is the surface of the bottom layer on the side away from the base layer, the first embossing pattern is arranged on the first surface, the first indentations are recessed from the first surface to the second surface, the third embossing pattern is arranged on the second surface, and the third indentations are recessed from the second surface to the first surface.

Furthermore, the surface layer is combined with the base layer through a first indentation, and the bottom layer is combined with the base layer through a second indentation.

Furthermore, the surface layer and the base layer are in a separated state in the area corresponding to the second indentation, and the bottom layer and the base layer are also in a separated state in the area corresponding to the second indentation.

Furthermore, the projection of the third embossing pattern and the first embossing pattern on the surface of the body forms a closed figure.

Further, the density of the second indentations is equal to or greater than 1.5 times the density of the first indentations, and the density of the second indentations is equal to or greater than 1.5 times the density of the third indentations.

Further, the first embossed pattern is the same as the third embossed pattern, and the second indentations are smaller in size than the first indentations or the third indentations.

Furthermore, the first indentation and the third indentation are point-to-flat embossments, and the second indentation is a point-to-concave or point-to-point or point-to-flat embossments.

Has the advantages that: the embodiment of the utility model provides a household paper, household paper includes the body, the body include surface course, bottom and basic unit, the body on be provided with a plurality of knurling units, knurling unit including set up on the surface course by the adjacent first knurling pattern that arranges constitution of a plurality of first indentation, set up on the basic unit by the adjacent second knurling pattern that arranges constitution of a plurality of second indentation and set up on the bottom by the adjacent third knurling pattern that arranges constitution of a plurality of third indentation, wherein, the projection of second knurling pattern on the surface of body is located between the projection of third knurling pattern, first knurling pattern on the surface of body, and the density of second indentation is greater than the density of first indentation and third indentation, can balance the difference of each layer paper ration or intensity on the one hand, can increase absorption rate on the two hand, accelerate the diffusion rate of liquid in multilayer paper, in three aspects, the speed of the liquid penetrating the body can be reduced, so that the user can easily keep the hand dry.

Drawings

Fig. 1 is a schematic view of the first embodiment of the present invention showing the projection of the first, second and third embossed patterns on a surface of the body.

Fig. 2 is a schematic sectional view taken along line a-a in fig. 1.

Fig. 3 is a schematic view of the projection of the first, second and third embossed patterns on a surface of the body according to the second embodiment of the present invention.

Illustration of the elements symbols:

a body 10; a first surface 101; a second surface 102; a face layer 11; first indentations 111; a first embossed pattern 112; a base layer 12; a second indentation 121; a second embossing pattern 122; a bottom layer 13; third indentations 131; a third embossing pattern 131.

Detailed Description

The present invention will be described in detail with reference to the following examples.

The following terms used in the present invention will be explained first.

"embossing" refers to a process of flexing a relatively small portion of a cellulosic fibrous structure perpendicular to its plane and pressing the protruding portions of the fibrous structure against a relatively hard surface, thereby permanently breaking the fiber-to-fiber bonds.

By "non-continuous" is meant that adjacent embossed locations are not contiguous.

In addition, unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in the description and claims of the present disclosure do not denote any order, quantity, or mechanical connection, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "up", "down", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationship is also changed accordingly.

The household paper comprises a body 10, wherein the body 10 comprises a surface layer 11, a bottom layer 13 and a base layer 12 clamped between the surface layer 11 and the bottom layer 13, a plurality of embossing units are arranged on the body 10, each embossing unit comprises a first embossing pattern 112 formed by adjacently arranging a plurality of first indentations 111 and arranged on the surface layer 11, a second embossing pattern 122 formed by adjacently arranging a plurality of second indentations 121 and arranged on the base layer 12 and a third embossing pattern 131 formed by adjacently arranging a plurality of third indentations 131 and arranged on the bottom layer 13, wherein the projection of the second embossing pattern 122 on one surface of the body 10 is positioned between the projections of the third embossing pattern 131 and the first embossing pattern 112 on the surface of the body 10, and the density of the second indentations 121 is greater than that of the first indentations 111 and the third indentations 131.

Referring to fig. 1, an embodiment of the present invention provides a household paper, which includes a body 10, a surface layer 11, a base layer 12, and a bottom layer 13.

The surface layer 11, the base layer 12 and the bottom layer 13 may be one of cellulose fiber paper, non-woven fabric and dust-free paper, wherein the cellulose fiber paper may be made of various cellulose fibers by wet or dry paper-making methods, in this embodiment, the cellulose fibers may be fiber materials of wood pulp, straw pulp and cane pulp, in other embodiments, the cellulose fibers may also be viscose fibers formed by alkalizing the cellulose fibers and the like and then spinning the cellulose fibers by a wet method, that is, other non-natural fibers such as synthetic fibers of terylene, chinlon, acrylon, cloro, vinylon, spandex and the like may also be added to the cellulose fiber paper.

It is understood that the surface layer 11, the base layer 12, or the bottom layer 13 may be single-layer paper, or may be multi-layer paper, and in this embodiment, the case that the surface layer 11, the base layer 12, and the bottom layer 13 are all single-layer paper is shown, but the present invention is not limited to this case, and other suitable number of layers may also be selected.

In addition, in the utility model, the quantitative amounts of the surface layer 11, the base layer 12 and the bottom layer 13 can be 9g/m 2-70 g/m2, preferably, the quantitative amount of the base layer 12 can be 10g/m 2-60 g/m2, more preferably, the quantitative amount of the base layer 12 is 12g/m2,14g/m2, 16g/m2, 20g/m2, 24g/m2,28g/m2,32g/m2,36g/m2, 52g/m2, etc., in some other embodiments, the longitudinal and transverse average tensile index and the thickness of the base layer 12 can be limited, so that the living paper of the utility model has proper performance,

the body 10 is provided with a plurality of embossing units, and the embossing units comprise a first embossing pattern 112 formed by adjacently arranging a plurality of first indentations 111 on the surface layer 11, a second embossing pattern 122 formed by adjacently arranging a plurality of second indentations 121 on the base layer 12, and a third embossing pattern 131 formed by adjacently arranging a plurality of third indentations 131 on the bottom layer 13.

Specifically, in the present embodiment, the first embossing pattern 112 is in a wavy line shape and is formed by arranging a plurality of first indentations 111 adjacently, and a typical first indentation 111 is formed by an embossing roller in an embossing system having protrusions extending radially outward, and it is understood that the first indentation 111 may be a linear indentation or a dot-shaped indentation, the linear indentation is an indentation having an aspect ratio of 5 or more, preferably 10 or more, projected on a paper surface, and the dot-shaped indentation is an indentation having an aspect ratio of less than 5 projected on the paper surface. In addition, the projection shape of the dot-shaped impression on the paper surface can be set according to actual needs, such as a circle, a prism, a square or an ellipse, and meanwhile, the second embossing pattern 122 and the third embossing pattern 131 are also in a wavy line shape, and of course, the first embossing pattern 112 and the second embossing pattern 122 can also be in other forms, as shown in fig. 3, the first embossing pattern 112, the second embossing pattern 122 and the third embossing pattern 131 in the second embodiment of the present invention are in a circular line shape.

Wherein the projection of the second embossing pattern 122 on one surface of the body 10 is located between the projections of the third embossing pattern 131 and the first embossing pattern 112 on the surface of the body 10, and the density of the second indentations 121 is greater than the densities of the first indentations 111 and the third indentations 131, on one hand, the first embossing pattern 112 and the third embossing pattern 131 form a flow guiding effect on the top sheet 11 and the bottom sheet 13, so that after the top sheet 11 or the bottom sheet 13 contacts with liquid, the top sheet 11 or the bottom sheet 13 rapidly transfers the liquid to other areas through the first embossing pattern 112 and the second embossing pattern 122, on the other hand, since the density of the second indentations 121 constituting the second embossing pattern 122 is greater than the densities of the first indentations 111 and the third indentations 131 in the top sheet 11 and the bottom sheet 13, the strength loss of the base sheet 12 is greater than that of the top sheet 11 and the bottom sheet 13, and when the tensile strength and/or the basis weight of the top sheet 11 and/or the bottom sheet 13 used is greater than that of the base sheet 12, can make the compliance of surface course 11, basic unit 12 and bottom 13 keep unanimous, thereby make the utility model discloses a have better use sense of touch, the third aspect, because the density of the second indentation 121 that constitutes second embossing pattern 122 is greater than the density of first indentation 111 in surface course 11 and bottom 13, third indentation 131, basic unit 12 is relative surface course 11, bottom 13 has more guiding gutters promptly, and thinner capillary, make after surface course 11 or bottom 13 contact liquid, liquid can shift to basic unit 12 fast, and spread in basic unit 12 fast, simultaneously, the liquid that is located in basic unit 12 then is relatively difficult in order to shift to one side in addition, thereby make the user can keep the drying of hand.

In a preferred embodiment, the surface layer 11 and the bottom layer 13 are made of wood pulp cellulose fiber paper, and the base layer 12 is made of straw pulp, straw pulp or bamboo pulp cellulose fiber paper, so that the composite paper for daily use made of wood pulp cellulose fiber paper and straw pulp or bamboo pulp still has a good use touch feeling.

In a preferred embodiment, the basis weight or tensile strength of the base layer 12 is greater than that of the surface layer 11 and the bottom layer 13, so that the tissue of the present invention has better touch feeling and softness, more preferably, the ratio of the basis weight of the base layer 12 to the basis weight of the surface layer 11 and the bottom layer 13 is greater than or equal to 1.15, more preferably greater than or equal to 1.5, and the ratio of the tensile strength of the base layer 12 to the tensile strength of the surface layer 11 and the bottom layer 13 is greater than or equal to 1.2, more preferably greater than or equal to 1.5.

In addition, the surface of the body 10 includes a first surface 101 and a second surface 102 opposite to the first surface 101, where the first surface 101 and the second surface 102 are outward surfaces of the body 10, specifically, in this embodiment, the first surface 101 is a surface of the surface layer 11 facing away from the base layer 12, and the second surface 102 is a surface of the bottom layer 13 facing away from the base layer 12.

Preferably, the first embossing pattern 112 is provided on the first surface 101, it being understood that the first indentations 111 are recessed from the first surface 101 in the direction of the second surface 102, the third embossing pattern 131 is provided on the second surface 102, and the third indentations 131 are recessed from the second surface 102 in the direction of the first surface 101.

Preferably, the surface layer 11 and the base layer 12 are combined through the first indentations 111, and the bottom layer 13 and the base layer 12 are combined through the second indentations 121, wherein the combination means that at least part of fibers of the surface layer 11 or the bottom layer 13 are extruded to the base layer 12 and entangled with the fibers of the base layer 12 during the embossing process, so that the surface layer 11 and the base layer 12 or the bottom layer 13 and the base layer 12 are combined into a whole through the entangled fibers.

Preferably, the top layer 11 and the base layer 12 are separated in the area corresponding to the second indentation 121, and the bottom layer 13 and the base layer 12 are also separated in the area corresponding to the second indentation 121, so that the liquid can be transferred to the base layer 12 while spreading through the first embossing pattern 112 or the third embossing pattern 131, and the liquid can be spread inside the base layer 12 through the second embossing pattern 122, and the liquid is not easily transferred to the surface opposite to the surface contacting the liquid due to the separated area corresponding to the second indentation 121, thereby further keeping the hand of the user dry.

It is understood that, in the above description, the projection of the second embossing pattern 122 on one surface of the body 10, the projection of the third embossing pattern 131 on the surface of the body 10, and the projection of the first embossing pattern 112 on the surface of the body 10 may be the first surface 101 of the body 10 or the second surface 102 of the body 10.

The projection of the second embossing pattern 122 on the surface of the body 10 is located between the projections of the third embossing pattern 131 and the first embossing pattern 112 on the surface of the body 10, which means that the projection of the third embossing pattern 131 and the first embossing pattern 112 on the surface of the body 10 encloses or is sandwiched into an area, as shown in fig. 3, the projection of the third embossing pattern 131 and the first embossing pattern 112 in the second embodiment of the present invention encloses into an annular area, as shown in fig. 1, the projection of the third embossing pattern 131 and the first embossing pattern 112 in the first embodiment of the present invention is sandwiched into a wavy area, and the projection of the second embossing pattern 122 on the surface of the body 10 is located in the annular area or the wavy area.

More preferably, the projections of the third embossing pattern 131 and the first embossing pattern 112 on the surface of the body 10 form a closed figure.

The density of first indentations 111 is the number of first indentations 111 per unit area on top layer 11, the density of second indentations 121 is the number of second indentations 121 per unit area on base layer 12, the density of third indentations 131 is the number of third indentations 131 per unit area on bottom layer 13, preferably, the density of second indentations 121 is equal to or greater than 1.5 times the density of first indentations 111, and the density of second indentations 121 is equal to or greater than 1.5 times the density of third indentations 131.

More preferably, the density of second indentations 121 is equal to or greater than 3 times the density of first indentations 111, and the density of second indentations 121 is equal to or greater than 3 times the density of third indentations 131.

Preferably, the first embossed pattern 112 is the same as the third embossed pattern 131, in which the shape and size of the first embossed pattern 112 are the same as those of the third embossed pattern 131, and the first indentations 111 constituting the first embossed pattern 112 are the same as those of the third indentations 131 constituting the third embossed pattern 131, so that the patterns of the first surface 101 and the second surface 102 of the tissue of the present invention are the same, thereby providing convenience to a user, and in this case, the densities of the first indentations 111 and the third indentations 131 are the same.

Preferably, the size of second indentation 121 is smaller than that of first indentation 111 or third indentation 131, and the size includes the size of the projected shape of second indentation 121, first indentation 111, and third indentation 131 on first surface 101 or second surface 102, and the depth of the recess.

Further, the first indentation 111 and the third indentation 131 are embossed "point-to-flat", and the second indentation 121 is embossed "point-to-concave" or "point-to-point" or "point-to-flat".

It is understood that the embossing units on the body 10 can be repeatedly arranged according to a certain rule to form a desired shape pattern, which is not described herein again.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. The household paper comprises a body and is characterized in that the body comprises a surface layer, a bottom layer and a base layer clamped between the surface layer and the bottom layer, a plurality of embossing units are arranged on the body, each embossing unit comprises a first embossing pattern formed by adjacently arranging a plurality of first indentations and arranged on the surface layer, a second embossing pattern formed by adjacently arranging a plurality of second indentations and arranged on the base layer and a third embossing pattern formed by adjacently arranging a plurality of third indentations and arranged on the bottom layer, the projections of the second embossing pattern on the surface of the body are located between the projections of the third embossing pattern and the first embossing pattern on the surface of the body, and the density of the second indentations is greater than that of the first indentations and the third indentations.

2. The tissue paper as claimed in claim 1, wherein the surface layer and the bottom layer are made of wood pulp cellulose fiber paper, and the base layer is made of straw pulp, straw pulp or bamboo pulp cellulose fiber paper.

3. The tissue of claim 1, wherein the base layer has a basis weight or tensile strength greater than the top and bottom layers.

4. The tissue of claim 1, wherein the surface of the body comprises a first surface and a second surface, the first surface being a surface of the top layer facing away from the base layer, the second surface being a surface of the bottom layer facing away from the base layer, the first embossed pattern being disposed on the first surface, the first indentations being recessed from the first surface in a direction toward the second surface, the third embossed pattern being disposed on the second surface, the third indentations being recessed from the second surface in a direction toward the first surface.

5. The tissue of claim 4, wherein the top layer is bonded to the base layer by a first indentation and the bottom layer is bonded to the base layer by a second indentation.

6. The tissue of claim 5, wherein the top layer is separated from the base layer in areas corresponding to the second indentations, and wherein the bottom layer is separated from the base layer in areas corresponding to the second indentations.

7. The tissue of claim 6, wherein the third embossed pattern and the first embossed pattern are projected on the surface of the body to form a closed figure.

8. The tissue of claim 1, wherein the density of the second indentations is equal to or greater than 1.5 times the density of the first indentations and the density of the second indentations is equal to or greater than 1.5 times the density of the third indentations.

9. The tissue of claim 8, wherein the first embossed pattern is the same as the third embossed pattern and the second indentations are smaller in size than the first or third indentations.

10. The tissue of claim 1, wherein the first and third indentations are point-to-flat and the second indentation is point-to-concave or point-to-point or point-to-flat.

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