TWI717191B - Tissue paper product and method for manufacturing the same - Google Patents

Abstract

A tissue paper product and a method for manufacturing the same are disclosed. A first embossed layer and a second embossed layer are combined together and coated with an adhesive by rollers, and the first embossed layer and the second embossed layers which are pressed and nested with each other are bonded to a third embossed layer. A part of low protrusions of the first embossed layer are supported by protrusions of the second embossed layer, and a part of the low protrusions of the first embossed layer are supported by surfaces between the protrusions of the second embossing layer, thus can maximize the thickness of the product, and the thickness of the product is about 52% higher than that of the traditional three-layer embossed structure. High protrusions of the first embossed layer press the second embossed layer and the third embossed layer, thus the three embossed layers are bonded and locked together to form a solid three-dimensional structure, thereby greatly improving physical properties of the tissue paper product such as the thickness, touch, absorption and the like.

Description

Paper towel and manufacturing method

The invention relates to a paper towel and a manufacturing method thereof, in particular to a manufacturing method of a multilayer product.

The present invention claims the priority of a Chinese patent application filed with the Chinese Patent Office on August 16, 2019, with an application number of 201910760175.5 and an invention title of "a paper towel and manufacturing method", the entire content of which is incorporated into the present invention by reference.

Paper towels are generally made from natural non-polluting raw materials such as wood pulp, bamboo pulp, cotton pulp, straw pulp, etc. According to their use, they include paper face towels, paper napkins, paper handkerchiefs, wet tissues, hand towels, kitchen paper towels, etc. The structure of paper towels can be divided into single-layer, double-layer, and multi-layer; multi-layer paper towels are easy to be peeled off during the extraction process. In order to change the layering of the paper, each layer of paper is adhered by embossing. The physical properties such as thickness, touch (surface softness) and absorbency (fluffy softness) of the paper also have an impact. The embossing process has become a key link in papermaking technology that affects the performance of paper towels.

The embossed toilet paper structure currently on the market is mainly made by the embossing process and the bonding of the embossed toilet paper (embossed composite structure). However, the existing embossed toilet paper is mainly based on two-path embossing, and the conventional three-path embossed sanitary paper towel is restricted by the process, so that the existing three-path embossed structure product has no obvious advantage over the two-path embossed product.

CN201510439764.5 Method for producing multi-layered floral toilet roll paper (please refer to Figure 1 and Figure 2), raw paper unrolling: unrolling the raw paper to be embossed; fine embossing of the surface layer: one or more layers of surface The layer of base paper is guided to the upper fine embossing roller to press the fine embossing to obtain the fine embossing paper; the surface layer and the core layer are coarsely embossed: the obtained fine embossing paper is combined with a layer of core layer base paper and led to the coarse embossing roller pair. Embossing to obtain coarse embossed paper, coated with bonding agent: the obtained coarse embossed paper is led to a water rubber roller coated with bonding agent and coarsely pressed A pair of rollers composed of patterned steel rods is applied to the concave surface of the core layer of the obtained coarse embossed paper to obtain a glued coarse embossed paper; the bottom fine embossing: a layer of base paper is led to the lower fine embossing roller pair to press and finely press Spend the bottom fine embossed paper; rewind, package: rewind the obtained coarse embossed paper with glue and the fine embossed paper at the bottom, the concave surface of the coarse embossed paper and the fine embossed paper The concave surface is glued and connected during the rewinding process and packaged to obtain a multi-layered floral toilet paper with the convex surface of the surface layer and the convex surface of the bottom layer opposite to each other.

Although the above scheme realizes the three-path embossing of the surface layer, the core layer, and the bottom layer, due to process constraints, the existing three-path embossed structure product has no obvious advantage over the two-path embossed product. Because the surface layer is embossed twice, the fiber bonding points in the toilet paper are damaged by a greater degree of tensile fracture, resulting in low strength of the surface layer toilet paper, which is easy to rot when wet, resulting in a decrease in user experience. However, the structure formed after the double embossing surface layer and the core layer are combined does not greatly improve the thickness structure of the product, and the absorbency and hand feel are not changed significantly.

In view of this, the present invention provides a paper towel and a manufacturing method thereof to solve the problems existing in the prior art.

The present invention provides a paper towel including a first embossed layer, a second embossed layer, and a third embossed layer;

The first embossed layer is embossed with first embossed layer low protrusions and first embossed layer high protrusions; the first embossed layer low protrusions include the first embossed layer low protrusion width and The first embossed layer has a low protrusion height; the first embossed layer high protrusion includes the first embossed layer high protrusion width and the first embossed layer high protrusion height;

The second embossed layer has a second embossed layer protrusion and a plane between the second embossed layer protrusions; the second embossed layer protrusion includes a second embossed layer protrusion width and a second embossed layer Height of the protrusions of the second embossed layer; the plane between the protrusions of the second embossed layer has a flat width between the protrusions of the second embossed layer;

The third embossed layer is embossed with a third embossed layer protrusion and a plane between the third embossed layer protrusions; the third embossed layer protrusion includes a third embossed layer protrusion width and a third Height of embossing layer;

The height of the first embossed layer is greater than the height of the second embossed layer; the height of the second embossed layer is greater than or equal to the height of the third embossed layer;

The width of the low protrusions of the first embossed layer is less than or equal to the protrusions of the second embossed layer The starting width or the plane width between the protrusions of the second embossing layer;

The density of the low protrusions of the first embossed layer is greater than the density of the protrusions of the second embossed layer;

During the composite process of the first embossed layer and the second embossed layer through rollers, the high protrusions of the first embossed layer and the protrusions of the second embossed layer squeeze the insert and apply a bonding agent; A part of the low protrusions of the first embossed layer is supported by the protrusions of the second embossed layer;

Or when the first embossed layer and the second embossed layer are combined by a roller, the flat surface between the high protrusions of the first embossed layer and the protrusions of the second embossed layer is pressed and coated Bonding agent; a part of the low protrusions of the first embossed layer is supported by the plane between the protrusions of the second embossed layer;

The first embossed layer and the second embossed layer after the composite coating of the bonding agent are combined with the third embossed layer through a roller.

Preferably, the first embossed layer and the second embossed layer after composite coating of the bonding agent are combined with the third embossed layer by a roller, the insert is pressed and the bonding agent is applied to the first embossed layer The high protrusions and the protrusions of the second embossed layer and the protrusions of the third embossed layer are flatly bonded, and the protrusions of the third embossed layer and the protrusions of the second embossed layer are flatly pressed Set.

Preferably, the first embossed layer and the second embossed layer after composite coating of the bonding agent are combined with the third embossed layer by a roller, the insert is pressed and the bonding agent is applied to the first embossed layer The high protrusion and the plane between the protrusions of the second embossed layer are bonded to the plane between the protrusions of the third embossed layer, and the protrusions of the third embossed layer are pressed against the protrusions of the second embossed layer Set.

Preferably, the first embossing layer, the second embossing layer, and the third embossing layer are all one layer, two layers or multiple layers.

Preferably, the low protrusions of the first embossed layer are pressure points; the high protrusions of the first embossed layer are dotted and line combined graphics.

Preferably, the protrusions of the second embossed layer are wave structures or the protrusions of the second embossed layer are pressure points.

Preferably, the wave structure is a wrinkle, a corrugated contour, or a wavy contour.

Preferably, the binding agent is glue or water, or natural extract. The binding agent is either colored or scented, or colorless and tasteless.

The present invention also provides a method for manufacturing paper towels. The first Embossing layer, second embossing layer, third embossing layer;

The first embossed layer and the second embossed layer are compositely coated with a bonding agent by a roller, and the first embossed layer and the second embossed layer are squeezed and coated with a bonding agent. A part of the first embossed layer low protrusions are supported by the second embossed layer protrusions, and a part of the first embossed layer low protrusions are supported by the plane between the second embossed layer protrusions;

The first embossed layer and the second embossed layer, which are squeezed and coated with a bonding agent, are bonded to the third embossed layer; the first embossed layer is highly convex and the second embossed layer The protrusions of the flower layer and the protrusions of the third embossed layer are planely bonded, and the protrusions of the third embossed layer and the protrusions of the second embossed layer are flatly pressed to insert sleeves.

The present invention also provides a method for manufacturing paper towels. The first embossing layer and the third embossing layer are formed by embossing rollers;

The first embossed layer and the second embossed layer are composite coated with a bonding agent by a roller, and the high convexity of the first embossed layer and the convexity of the second embossed layer are flatly pressed and coated. Bonding agent; part of the first embossed layer low protrusions are supported by the plane between the second embossed layer protrusions; part of the first embossed layer low protrusions are supported by the second embossed layer protrusions ；

The first embossed layer and the second embossed layer, which are squeezed and coated with a bonding agent, are bonded to the third embossed layer; the first embossed layer is highly convex and the second embossed layer The plane between the protrusions of the flower layer is bonded with the plane between the protrusions of the third embossing layer, and the protrusions of the third embossing layer and the protrusions of the second embossing layer are extruded and inserted.

In summary, the present invention provides a paper towel and a method for manufacturing the same. Through the definition of the three-layer pattern, the first embossed layer is highly convex and the second embossed layer is convex or the second embossed layer. The plane squeeze the insert between the protrusions of the flower layer and apply the bonding agent. During the composite process of the first embossed layer and the second embossed layer, the first embossed layer is left on the surface of the second embossed layer. Flower traces, and the bonding agent is applied to the traces, which are squeezed by a roller with a certain strength to bond with the third embossed layer; because the first embossed layer has a higher density than the second embossed layer Density of layer protrusions, part of the first embossed layer low protrusions are supported by the second embossed layer protrusions, and a part of the first embossed layer low protrusions are raised by the second embossed layer It is supported by the intermediate plane to maximize the thickness of the product, which is about 52% higher than the traditional three-layer embossing process structure; the first embossing layer and the third embossing layer are mainly embossed dots with a certain density. The density of embossing points is higher than that of the second embossing layer, so as to obtain Get a similar touch feel; the first embossed layer on the first embossed layer penetrates the second embossed layer and the third embossed layer, and finally the three different embossed layers are bonded and locked together to form one The solid three-dimensional structure greatly improves the physical properties of the tissue product in terms of thickness, touch, and absorbency.

10‧‧‧The first embossing layer

11‧‧‧The first embossing layer is low convex

d11‧‧‧Low protrusion width of the first embossing layer

h11‧‧‧Low protrusion height of the first embossing layer

111‧‧‧The low raised left side of the first embossed layer

112‧‧‧The first embossed layer low raised bottom surface

113‧‧‧The first embossing layer low raised right side

12‧‧‧The first embossing layer is raised

d12‧‧‧The height of the first embossing layer

h12‧‧‧The height of the first embossing layer

121‧‧‧The first embossing layer height raised left side

122‧‧‧The first embossed layer high raised bottom surface

123‧‧‧The first embossing layer height raised right side

13‧‧‧The first embossing layer plane

20,20a,20b,20c‧‧‧Second embossing layer

21‧‧‧The second embossing layer raised

d21‧‧‧The second embossing layer raised width

h21‧‧‧The height of the second embossing layer

211‧‧‧The raised left side of the second embossing layer

212‧‧‧The raised right side of the second embossing layer

213‧‧‧The raised bottom surface of the second embossing layer

22‧‧‧Second embossing layer raised plane

d22‧‧‧Plane width between the protrusions of the second embossing layer

23‧‧‧Second embossing layer plane

30‧‧‧The third embossing layer

31‧‧‧The third embossing layer raised

d31‧‧‧Protrusion width of third embossing layer

h31‧‧‧Protrusion height of third embossing layer

311‧‧‧The raised left side of the third embossing layer

312‧‧‧The raised right side of the third embossing layer

313‧‧‧The raised bottom surface of the third embossing layer

32‧‧‧Plane between the protrusions of the third embossing layer

33‧‧‧The third embossing layer plane

40‧‧‧Binder

In order to more clearly describe the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are merely the present According to the embodiments of the invention, for those of ordinary skill in the art, other schemas can be obtained according to the provided schema without creative work.

Figure 1 is a schematic diagram of prior art three-path embossing;

Figure 2 is a schematic diagram of three-path embossing in the prior art;

Figure 3 is a schematic diagram of the first embossing layer;

Figure 4 is a schematic diagram of the second embossing layer;

Figure 5 is a schematic diagram of the third embossing layer;

Figure 6 is an exploded schematic diagram of the first to third embossed layers;

Figure 7 is a composite schematic diagram of the first and second embossed layers;

Figure 8 is a schematic diagram of the composite of the first and second embossed layers and the third embossed layer;

Figure 9 is a schematic diagram of Example 1 of triple-layered flowers;

Figure 10 is a schematic diagram of Example 2 of the triple-layered flower;

Figure 11 is a schematic diagram of Example 3 of the triple-layered flower.

The embodiment of the present invention provides a paper towel and a manufacturing method thereof to solve the problems existing in the prior art.

The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

In order to explain the present invention in more detail, a paper towel and manufacturing method thereof provided by the present invention will be described in detail below in conjunction with the drawings.

The plane of the embossing layer refers to the plane of the paper towel layer before embossing; the width of the embossing protrusion refers to the width of the bottom surface of the protrusion formed after the plane of the embossing layer is embossed, and the height of the embossing protrusion refers to the plane and the pressure of the embossing layer. The distance between the bottom surfaces of the protrusions formed after blooming; the plane between embossed protrusions refers to the plane of the embossed layer that is not embossed between the embossed protrusions.

As shown in Figure 8, a paper towel includes a first embossed layer 10, a second embossed layer 20, and a third embossed layer 30;

As shown in Figure 3, the first embossed layer 10 is embossed with first embossed layer low protrusions 11, first embossed layer high protrusions 12, and first embossed layer plane 13;

The first embossed layer low protrusion 11 includes the first embossed layer low protrusion width d11 and the first embossed layer low protrusion height h11; the first embossed layer low protrusion width d11 refers to the formation after embossing The width of the raised bottom surface of the first embossed layer, the low height h11 of the first embossed layer refers to the distance between the plane of the embossed layer and the raised bottom surface formed after embossing; An embossed layer low convex left side 111, a first embossed layer low convex right side 113 and a first embossed layer low convex bottom surface 112; the first embossed layer low convex 11 can be used to improve embossing Tactile, usually the first embossed layer low protrusion height h11 is about 0.6mm, the first embossed layer low protrusion width d11 between 0.3-0.7mm; the first embossed layer low protrusion left side 111, the first The single-side slope of the right side 113 of the low protrusions of an embossed layer is about 25-35 degrees, and the density of the low protrusions 11 of the first embossed layer is generally between 40-80 dots/cm ² .

The first embossing layer height protrusion 12 includes a first embossing layer height protrusion width d12 and a first embossing layer height protrusion height h12, and the first embossing layer height protrusion 12 is formed by the first embossing The layer height protrusion left side 121, the first embossing layer height protrusion right side 123 and the first embossing layer height protrusion bottom surface 122 are composed of; the first embossing layer height protrusion 12 is a combination of decorative lines and dots For graphics, the width d12 of the first embossed layer is generally between 0.4-1.6mm, and the single-sided slope of the left side 121 of the first embossed layer and the right side 123 of the first embossed layer is 20 -30 degrees; the height of the first embossed layer is 0.3-1mm higher than the height of the first embossed layer h11.

As shown in Figure 4, the second embossed layer 20 has second embossed layer protrusions 21 and a second embossed layer protrusion plane 22; the second embossed layer protrusions 21 include second The embossed layer protrusion width d21 and the second embossed layer protrusion height h21; the second embossed layer protrusions 21 are raised by the second embossed layer on the left side 211, the second embossed layer on the right side 212, and the second embossed layer. Two embossed layer raised bottom surfaces 213; the second embossed layer inter-protrusion plane 22 has a second embossed layer inter-protrusion plane width d22; the second embossed layer protrusion width d21 is generally 0.4-1.6mm Among them, the single-sided slope of the convex left side 211 of the second embossed layer and the right side 212 of the second embossed layer is about 20-30 degrees; the density of the convex 21 of the second embossed layer is generally 10-60 Point/cm ² or so;

As shown in Figure 5, the third embossed layer 30 is embossed with a third embossed layer protrusion 31, a third embossed layer flat surface 32 and a third embossed layer flat surface 33; The embossed layer protrusion 31 includes the third embossed layer protrusion width d31 and the third embossed layer protrusion height h31; the third embossed layer protrusion 31 is raised by the third embossed layer on the left side 311, and the third embossed layer The right side 312 of the layer protrusion and the bottom surface 313 of the third embossed layer are composed; the height h31 of the third embossed layer is generally about 0.6-1.5mm, and the width d31 of the third embossed layer is generally 0.3-1.6. mm, the single-sided slope of the convex left side 311 of the third embossed layer and the right side 312 of the third embossed layer is about 25-35 degrees; the density of the convex 31 of the third embossed layer is generally 30- Around 80 dots/cm ² .

The height h12 of the first embossed layer is greater than the height h21 of the second embossed layer; the height h21 of the second embossed layer is greater than or equal to the height h31 of the third embossed layer; The first embossed layer high protrusions 12 on the first embossed layer 10 penetrate the second embossed layer 20 and the third embossed layer 30 to form discrete or continuous bonding points, and finally bond and lock the three different embossed layers Together, form a solid three-dimensional structure;

The low protrusion width d11 of the first embossed layer is less than or equal to the protrusion width d21 of the second embossed layer or the planar width d22 between the protrusions of the second embossed layer; The density is greater than the density of the second embossed layer protrusions 21, a part of the first embossed layer low protrusions 11 is supported by the second embossed layer protrusions 21, a part of the first embossed layer low The protrusions 11 are supported by the plane 22 between the protrusions of the second embossed layer to form discrete or continuous support points, which maximize the thickness of the product; a part of the protrusions 21 of the second embossed layer is covered by the third embossed layer The protrusions 31 are supported, and a part of the protrusions 21 of the second embossed layer is supported by the plane 32 between the protrusions of the third embossed layer.

During the composite process of the first embossed layer 10 and the second embossed layer 20 through rollers, the first embossed layer high protrusions 12 and the second embossed layer protrusions 21 squeeze the insert and Coating bonding agent; part of the first embossed layer low protrusion 11 is supported by the second embossed layer protrusion 21;

Or when the first embossed layer 10 and the second embossed layer 20 are combined by rollers, the high protrusions 12 of the first embossed layer and the flat surfaces 22 between the protrusions of the second embossed layer are pressed Inlay and apply bonding agent; a part of the first embossed layer low protrusion 11 is between the second embossed layer protrusions Plane 22 support;

The first embossed layer 10 and the second embossed layer 20 after the composite coating of the bonding agent are combined with the third embossed layer 30 through a roller.

The first embossed layer 10 and the second embossed layer 20 after the composite coating of bonding agent are combined with the third embossed layer 30 through a roller, the first embossed layer is squeezed and coated with the bonding agent The high protrusions 12 and the second embossed layer protrusions 21 adhere to the flat surfaces 32 between the third embossed layer protrusions, and the third embossed layer protrusions 31 and the second embossed layer protrusions The middle plane 22 squeezes the insert sleeve.

The first embossed layer 10 and the second embossed layer 20 after the composite coating of bonding agent are combined with the third embossed layer 30 through a roller, the first embossed layer is squeezed and coated with the bonding agent The high protrusions 12 and the second embossed layer inter-protrusion plane 22 are bonded to the third embossed layer inter-protrusion plane 32, and the third embossed layer protrusions 31 and the second embossed layer The protrusion 21 squeezes the insert sleeve.

The first embossing layer 10, the second embossing layer 20, and the third embossing layer 30 are all one layer, two layers or multiple layers.

The low protrusions 11 of the first embossed layer are pressure points; the high protrusions 12 of the first embossed layer are dotted and line combined graphics.

The second embossed layer protrusion 21 is a wave structure or the second embossed layer protrusion 21 is a pressure point.

The wave structure is folds, corrugated contours, and wavy contours.

The binding agent 40 is glue or water or natural extract; the binding agent has color or fragrance or is colorless and tasteless. The binding agent has color or fragrance or is colorless and odorless and can be added according to specific tissue products.

The present invention also provides a method for manufacturing paper towels. The first embossing layer 10, the second embossing layer 20, and the third embossing layer 30 are formed by embossing rollers;

The first embossed layer 10 and the second embossed layer 20 are composite coated with a bonding agent 40 by a roller, and the first embossed layer high protrusions 12 and the second embossed layer protrusions 21 are extruded and inlaid Cover and apply bonding agent 40; a part of the first embossed layer low protrusions 11 are supported by the second embossed layer protrusions 21, and a part of the first embossed layer low protrusions 11 are supported by the second embossed layer Plane 22 supports between flower layers;

The first embossed layer 10 and the second embossed layer 10 and the second The embossed layer 20 is bonded to the third embossed layer 30; the first embossed layer high protrusions 12 and the second embossed layer protrusions 21 and the third embossed layer protrusions 32 Adhesive, the third embossed layer protrusion 31 and the flat surface 22 between the second embossed layer protrusions squeeze the insert.

The present invention also provides a method for manufacturing paper towels. The first embossing layer 10 and the third embossing layer 30 are formed by embossing rollers; the second embossing layer 20 is an existing formed product.

The first embossed layer 10 and the second embossed layer 20 are composite coated with a bonding agent 40 by a roller, and the first embossed layer high protrusions 12 and the second embossed layer protrusions 22 are extruded. Emboss the sleeve and apply the bonding agent 40; since the density of the first embossed layer low protrusions 11 is greater than the density of the second embossed layer protrusions 21, a part of the first embossed layer low protrusions 11 is The second embossed layer is supported by the flat surface 22 between the protrusions; a part of the first embossed layer low protrusions 11 is supported by the second embossed layer protrusions 21;

The first embossed layer 10 and the second embossed layer 20, which are squeezed inlaid and coated with a bonding agent, are bonded to the third embossed layer 30; the first embossed layer has high protrusions 12 and The second embossed layer protrusion plane 22 is bonded to the third embossed layer protrusion plane 32, and the third embossed layer protrusions 31 and the second embossed layer protrusions 21 are extruded set.

Embodiment 1, as shown in Figure 9, a paper towel, the first embossing layer 10, the second embossing layer 20a, and the third embossing layer 30 are formed by embossing rollers;

The first embossed layer 10 is embossed with first embossed layer low protrusions 11, first embossed layer high protrusions 12, and first embossed layer plane 13; the first embossed layer low protrusions 11 are The embossing points are used to improve the embossing touch. The first embossing layer high protrusions 12 are a combination of decorative lines and dots; the first embossing layer low protrusions 11 and the first embossing layer high protrusions 12 are both Face down

The second embossed layer 20a has second embossed layer protrusions 21 and a plane 22 between the second embossed layer protrusions; the second embossed layer protrusions 21 face downward;

The third embossed layer 30 is embossed with a third embossed layer protrusion 31, a third embossed layer protrusion plane 32, and a third embossed layer plane 33; the third embossed layer protrusion 31 faces upward ；

The first embossed layer 10 and the second embossed layer 20a are compositely coated with a bonding agent 40 by a roller, and the first embossed layer high protrusions 12 and the second embossed layer protrusions 21 are extruded and inlaid Sleeve and apply the bonding agent 40. During the compounding process of the first embossed layer 10 and the second embossed layer 20a, the embossed traces of the first embossed layer with high protrusions 12 are left on the bottom surface 213 of the second embossed layer. , And smear knot on the trace Mixture; because the first embossed layer low protrusion width d11 is less than or equal to the second embossed layer protrusion width d21, because the first embossed layer low protrusion 11 has a higher density than the second embossed layer The density of the layer protrusions 21, a part of the first embossed layer low protrusions 11 is supported by the second embossed layer protrusions 21, and a part of the first embossed layer low protrusions 11 is supported by the second embossed layer Plane 22 supports between flower layers;

The first embossed layer 10 and the second embossed layer 20a, which are squeezed and coated with a bonding agent 40, are bonded to the third embossed layer 30; the first embossed layer has high protrusions 12 and The second embossed layer protrusions 21 are bonded to the flat surface 32 between the third embossed layer protrusions, and the third embossed layer protrusions 31 and the second embossed layer protrusion surface 22 are pressed Insert the sleeve, the first embossed layer high protrusion 12 on the first embossed layer 10 penetrates the second embossed layer 20a and the third embossed layer 30, and finally the three different embossed layers are bonded and locked together to form A solid three-dimensional structure.

Embodiment 2, as shown in Figure 10, a paper towel, the first embossing layer 10, the second embossing layer 20b, and the third embossing layer 30 are formed by embossing rollers;

The first embossed layer 10 is embossed with first embossed layer low protrusions 11, first embossed layer high protrusions 12, and first embossed layer plane 13; the first embossed layer low protrusions 11 are The embossing points are used to improve the embossing touch. The first embossing layer high protrusions 12 are a combination of decorative lines and dots; the first embossing layer low protrusions 11 and the first embossing layer high protrusions 12 are both Face down

The second embossed layer 20b has second embossed layer protrusions 21 and a plane 22 between the second embossed layer protrusions; the second embossed layer protrusions 21 face upward;

The third embossed layer 30 is embossed with a third embossed layer protrusion 31, a third embossed layer protrusion plane 32, and a third embossed layer plane 33; the third embossed layer protrusion 31 faces upward ；

The first embossed layer 10 and the second embossed layer 20b are composite coated with a bonding agent 40 by a roller, and the first embossed layer high protrusions 12 and the second embossed layer protrusions 22 are extruded. Emboss the sleeve and apply the bonding agent 40. During the compounding process of the first embossed layer 10 and the second embossed layer 20b, the first embossed layer high protrusions 12 are left on the plane 22 between the second embossed layers. Embossed traces, and the bonding agent is applied to the traces; since the low protrusion width d11 of the first embossed layer is less than or equal to the plane width d22 between the protrusions of the second embossed layer, because the first embossed layer has low protrusions The density of 11 is greater than the density of the protrusions 21 of the second embossed layer, and a part of the low protrusions of the first embossed layer 11 is raised by the two second embossed layers on the upper end of the plane 22 between the protrusions of the second embossed layer. From 21 supports, part of the first embossed layer The low protrusions 11 are supported by the plane 22 between the protrusions of the second embossed layer;

The first embossed layer 10 and the second embossed layer 20b, which are squeezed and coated with a bonding agent 40, are bonded to the third embossed layer 30; the first embossed layer has high protrusions 12 and The plane 22 between the protrusions of the second embossed layer is bonded to the plane 32 between the protrusions of the third embossed layer, and the protrusions 31 of the third embossed layer are pressed against the protrusions 21 of the second embossed layer. Insert the sleeve, the first embossed layer high protrusion 12 on the first embossed layer penetrates the second embossed layer 20b and the third embossed layer 30, and finally the three different embossed layers are bonded and locked together to form one Strong three-dimensional structure.

Embodiment 3, as shown in Figure 11, a paper towel, the first embossing layer 10 and the third embossing layer 30 are formed by embossing rollers; the second embossing layer 20c is wrinkled, corrugated contour, wavy contour Existing known products;

The first embossed layer 10 is embossed with first embossed layer low protrusions 11, first embossed layer high protrusions 12, and first embossed layer plane 13; the first embossed layer low protrusions 11 are The embossing points are used to improve the embossing touch. The first embossing layer high protrusions 12 are a combination of decorative lines and dots; the first embossing layer low protrusions 11 and the first embossing layer high protrusions 12 are both Face down

The second embossed layer has a wave structure such as wrinkles, corrugated contours, and wavy contours, and has upward protrusions and downward protrusions. The downward protrusions can be understood as the second embossed layer protrusions;

The protrusions of the second embossing layer are wavy structures formed during the wet paper making process, or the protrusions of the second embossing layer are embossing points formed by an embossing machine on dry paper.

The wave structure is wrinkles, corrugated contours, and wavy contours, and the processing method can be formed by existing technologies such as TAD, NTT, QRT, ATMOS, eTAD and other technologies.

The third embossed layer 30 is embossed with a third embossed layer protrusion 31, a third embossed layer protrusion plane 32, and a third embossed layer plane 33; the third embossed layer protrusion 31 faces upward ；

The first embossed layer 10 and the second embossed layer 20c are composite coated with a bonding agent 40 by a roller, and the first embossed layer high protrusions 12 and the second embossed layer protrusions 21 are extruded and inlaid Sleeve and apply the bonding agent 40. During the compounding process of the first embossed layer 10 and the second embossed layer 20c, the embossed traces of the first embossed layer with high protrusions 12 are left on the bottom surface 213 of the second embossed layer. , And apply bonding agent on the trace; because the first embossed layer low protrusion width d11 is less than or equal to the second embossed layer protrusion width d21, because the first embossed layer low protrusion 11 density Greater than the density of the second embossed layer protrusions 21, the first embossed layer low protrusions 11 are supported by the second embossed layer protrusions 21;

The first embossed layer 10 and the second embossed layer 20c, which are squeezed and coated with a bonding agent 40, are bonded to the third embossed layer 30; the first embossed layer has high protrusions 12 and The second embossed layer protrusions 21 are bonded to the flat surface 32 between the third embossed layer protrusions, and the third embossed layer protrusions 31 and the second embossed layer protrusion surface 22 are pressed Insert the sleeve, the first embossed layer high protrusion 12 on the first embossed layer penetrates the second embossed layer 20c and the third embossed layer 30, and finally the three different embossed layers are bonded and locked together to form one Strong three-dimensional structure.

In summary, the present invention provides a paper towel and a method for manufacturing the same. Through the definition of the three-layer pattern, the first embossed layer is highly convex and the second embossed layer is convex or the second embossed layer. The plane squeeze the insert between the protrusions of the flower layer and apply the bonding agent. During the composite process of the first embossed layer and the second embossed layer, the first embossed layer is left on the surface of the second embossed layer. Flower traces, and the bonding agent is applied to the traces, which are squeezed by a roller with a certain strength to bond with the third embossed layer; because the first embossed layer has a higher density than the second embossed layer Density of layer protrusions, part of the first embossed layer low protrusions are supported by the second embossed layer protrusions, and a part of the first embossed layer low protrusions are raised by the second embossed layer Between plane support; to maximize the thickness of the product, compared with the traditional three-layer embossing process structure, the product thickness is increased by 52%; the third embossing layer is mainly embossed dots with a certain density, and the density of embossing dots is generally the same The first embossing layer is similar, so as to obtain a similar touch feeling; the first embossing layer on the first embossing layer is highly convex through the second and third embossing layers, and finally three different embossing layers The layers are bonded and locked together to form a firm three-dimensional structure, which greatly improves the physical properties of the tissue product in terms of thickness, touch, and absorbency.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also It should be regarded as the protection scope of the present invention.

10‧‧‧The first embossing layer

20‧‧‧Second embossing layer

30‧‧‧The third embossing layer

40‧‧‧Binder

Claims (10)

A paper towel, comprising a first embossing layer, a second embossing layer, and a third embossing layer; The first embossed layer is embossed with first embossed layer low protrusions and first embossed layer high protrusions; the first embossed layer low protrusions include the first embossed layer low protrusion width and The first embossed layer has a low protrusion height; the first embossed layer high protrusion includes the first embossed layer high protrusion width and the first embossed layer high protrusion height; The second embossed layer has a second embossed layer protrusion and a plane between the second embossed layer protrusions; the second embossed layer protrusion includes a second embossed layer protrusion width and a second embossed layer Height of the protrusions of the second embossed layer; the plane between the protrusions of the second embossed layer has a flat width between the protrusions of the second embossed layer; The third embossed layer is embossed with a third embossed layer protrusion and a plane between the third embossed layer protrusions; the third embossed layer protrusion includes a third embossed layer protrusion width and a third Height of embossing layer; The height of the first embossed layer is greater than the height of the second embossed layer; the height of the second embossed layer is greater than or equal to the height of the third embossed layer; The width of the low protrusions of the first embossed layer is less than or equal to the width of the protrusions of the second embossed layer or the plane width between the protrusions of the second embossed layer; The density of the low protrusions of the first embossed layer is greater than the density of the protrusions of the second embossed layer; During the composite process of the first embossed layer and the second embossed layer through rollers, the high protrusions of the first embossed layer and the protrusions of the second embossed layer squeeze the insert and apply a bonding agent; A part of the low protrusions of the first embossed layer is supported by the protrusions of the second embossed layer; Or when the first embossed layer and the second embossed layer are combined by a roller, the flat surface between the high protrusions of the first embossed layer and the protrusions of the second embossed layer is pressed and coated Bonding agent; a part of the low protrusions of the first embossed layer is supported by the plane between the protrusions of the second embossed layer; The first embossed layer and the second embossed layer after the composite coating of the bonding agent are combined with the third embossed layer through a roller. The paper towel according to claim 1, wherein the first embossed layer and the second embossed layer after the composite coating of the bonding agent are composited with the third embossed layer by a roller, and the inlay is compressed and combined with The first embossed layer high protrusions and the second embossed layer protrusions are planarly bonded to the third embossed layer protrusions, and the third embossed layer protrusions and the second embossed layer The embossing layer squeezes the insert in the plane. The paper towel according to claim 1, wherein the first embossed layer and the second embossed layer after the composite coating of the bonding agent are composited with the third embossed layer by a roller, and the inlay is compressed and combined with The high protrusions of the first embossed layer and the flat surfaces between the protrusions of the second embossed layer and the flat surfaces between the protrusions of the third embossed layer adhere to the protrusions of the third embossed layer. The second embossing layer protrudes and extrudes the insert sleeve. The paper towel according to claim 2 or 3, wherein the first embossing layer, the second embossing layer, and the third embossing layer are all one, two or more layers. The paper towel according to claim 2 or 3, wherein the low protrusions of the first embossed layer are pressure points; the high protrusions of the first embossed layer are dotted and line combined graphics. The paper towel according to claim 2 or 3, wherein the protrusions of the second embossed layer are wavy structures, or the protrusions of the second embossed layer are embossed points. The paper towel according to claim 6, wherein the wave structure is a wrinkle, a corrugated contour, or a wavy contour. The paper towel according to claim 2 or 3, wherein the binding agent is glue or water or natural extract; the binding agent has color or fragrance or is colorless and tasteless. A method for manufacturing a paper towel, the paper towel being the paper towel according to any one of claims 1-8, characterized in that the first embossing layer, the second embossing layer, and the third embossing layer are formed by an embossing roller; The first embossed layer and the second embossed layer are compositely coated with a bonding agent by a roller, and the first embossed layer and the second embossed layer are squeezed and coated with a bonding agent. A part of the first embossed layer low protrusions are supported by the second embossed layer protrusions, and a part of the first embossed layer low protrusions are supported by the plane between the second embossed layer protrusions; The first embossed layer and the second embossed layer, which are squeezed and coated with a bonding agent, are bonded to the third embossed layer; the first embossed layer is highly convex and the second embossed layer The protrusions of the flower layer and the protrusions of the third embossed layer are planely bonded, and the protrusions of the third embossed layer and the protrusions of the second embossed layer are flatly pressed to insert sleeves. A method for manufacturing a paper towel, wherein the paper towel is the paper towel according to any one of claims 1-8, characterized in that the first embossing layer and the third embossing layer are formed by embossing rollers; The first embossed layer and the second embossed layer are composite coated with a bonding agent by a roller, and the high convexity of the first embossed layer and the convexity of the second embossed layer are flatly pressed and coated. Bonding agent; part of the first embossed layer low protrusions are supported by the plane between the second embossed layer; part of the first The low protrusions of the embossed layer are supported by the protrusions of the second embossed layer; The first embossed layer and the second embossed layer, which are squeezed and coated with a bonding agent, are bonded to the third embossed layer; the first embossed layer is highly convex and the second embossed layer The plane between the protrusions of the flower layer is bonded with the plane between the protrusions of the third embossing layer, and the protrusions of the third embossing layer and the protrusions of the second embossing layer are extruded and inserted.

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