WO2021031438A1 - Tissue and fabrication method - Google Patents

Abstract

A tissue and a fabrication method therefor, comprising a first embossed layer (10), a second embossed layer (20) and a third embossed layer (30). The first embossed layer (10) and the second embossed layer (20) are compositely coated with a binding agent (40) by means of a roller; the first embossed layer (10) and the second embossed layer (20) that is extruded by a bushing and coated with the binding agent (40) are bound to the third embossed layer (30). The first embossed layer (10) is embossed with first embossed layer low bulges (11) and first embossed layer high bulges (12), and the second embossed layer (20) is embossed with second embossed layer bulges (21) and second embossed layer bulges inter-planes (22). The density of the first embossed layer low bulges (11) is greater than the density of the second embossed layer bulges (21). A part of the first embossed layer low bulges (11) is supported by the second embossed layer bulges (21), and a part of the first embossed layer low bulges (11) is supported by the second embossed layer bulges inter-planes (22).

Description

Paper towel and manufacturing method

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

Technical field

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

Background technique

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 wipes, 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, the various layers of paper are adhered by embossing. It also affects the physical properties of paper towels such as thickness, touch (surface softness), absorbency (fluffy softness), and embossing technology 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 adhesion 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, unrolling the base paper: unrolling the base paper to be embossed; fine embossing of the surface layer: leading one or more surface layer base paper to the upper fine embossing roller Fine embossing paper is obtained by pressing fine embossing; surface layer and core layer coarse embossing: the obtained fine embossing paper and a layer of core base paper are combined and led to a pair of coarse embossing rollers to obtain coarse embossing paper , Coating bonding agent: The obtained rough embossed paper is led to a roller pair composed of a water rubber roller coated with a bonding agent and a rough embossed steel rod, and a bonding agent is applied to the concave surface of the core layer of the obtained rough embossed paper to obtain a glued rough embossed paper ; Bottom fine embossing: lead a layer of base paper to the lower fine embossing roller to press and emboss the bottom fine embossing paper; rewinding, packaging: the obtained dispensed coarse embossed paper and the obtained bottom layer are finely pressed In the process of rewinding, the rough embossed concave surface of the coarse embossed paper and the concave surface of the bottom fine embossed paper are glued and connected during the rewinding process, and packaged to obtain a multi-layered flower sanitary with the convex surface of the surface layer and the convex surface of the bottom layer opposite to each other. Roll paper.

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.

Summary of the invention

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 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.

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 flat surfaces between the protrusions of the second embossed layer and the protrusions of the third embossed layer are bonded, and the protrusions of the third embossed layer are flatly extruded between the protrusions of the second embossed layer. Pressure 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 plane between the high protrusions and the protrusions of the second embossed layer is bonded to the plane between the protrusions of the third embossed layer, and the protrusions of the third embossed layer are extruded from the protrusions of the second embossed layer. Pressure 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 application also provides a method for manufacturing paper towels, the first embossing layer, the second embossing layer, and the third embossing layer are formed by embossing rollers;

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 extruded 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 embossed layer and the protrusions of the third embossed layer are planarly 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 application 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 extruded 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 embossed layer is bonded with the plane between the protrusions of the third embossed layer, and the protrusions of the third embossed layer and the protrusions of the second embossed layer are extruded.

In summary, the present invention provides a paper towel and a method for manufacturing the same. Through the definition of the three-layered pattern, the first embossed layer is highly convex and the second embossed layer is convex or second The surface of the embossed layer is extruded and the insert is applied with bonding agent on the plane. During the compounding 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. Embossing traces, and the bonding agent is applied to the traces, which are squeezed by a roller with a certain strength and then bonded together with the third embossed layer; because the low convex density of the first embossed layer is greater than that of the second embossed layer The density of embossed layer protrusions, 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 second embossed layer The plane support between the protrusions maximizes the thickness of the product. Compared with the traditional three-layer embossing process structure, the product thickness is increased by about 52%; the first embossing layer and the third embossing layer are mainly embossed with a certain density. The density of embossed dots is higher than that of the second embossed layer, so as to obtain a similar touch feel; the first embossed layer on the first embossed layer is highly convex through the second embossed layer and the third embossed layer Finally, the three different embossed layers are bonded and locked together to form a firm three-dimensional structure, thereby greatly improving the physical properties of the paper towel product in terms of thickness, touch, and absorbency.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, 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 only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings 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 embossed 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 view 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 a triple-layered flower;

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

Figure 11 is a schematic diagram of Embodiment 3 of a triple-layered flower;

In the figure: 10. The first embossed layer, 11. The first embossed layer is low convex, d11. The first embossed layer low convex width, h11. The first embossed layer low convex height, 111. First The embossed layer is low convex left side, 113. The first embossed layer is low convex right side, 112. The first embossed layer is low convex bottom, 12. The first embossed layer is high convex, d12 is the first The embossing layer is high and convex width, h12 the first embossing layer is high and convex width, 121. The first embossing layer is high and convex left side, 122. The first embossing layer is high convex right side, 123. An embossed layer with high raised bottom surface, 13. The first embossed layer plane, 20. The second embossed layer, 21. The second embossed layer raised, d21. The second embossed layer raised width, h21. The raised height of the second embossed layer, 211. The raised left side of the second embossed layer, 212. The raised right side of the second embossed layer, 213. The raised bottom surface of the second embossed layer, 22. The second pressure Plane between the protrusions of the flower layer, d22. The width of the plane between the protrusions of the second embossing layer, 23. The plane of the second embossing layer, 30. The third embossing layer, 31. The protrusion of the third embossing layer, 311. Section Three embossed layers raised left side, 312. Third embossed layer raised right side, 313. Third embossed layer raised bottom surface, d31. Third embossed layer raised width, h31. Third pressure Raised height of the flower layer, 32. The raised plane of the third embossed layer, 33. The plane of the third embossed layer.

detailed description

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 a manufacturing method thereof provided by the present invention will be described in detail below with reference to the accompanying 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 FIG. 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 Embossed touch, usually the height h11 is about 0.6mm, the low convex width d11 of the first embossed layer is between 0.3-0.7mm; the first embossed layer is low convex left side 111, the first embossed layer is low convex The single side slope of the right side 113 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 left side 121 of the high embossing layer, the right side 123 of the first embossing layer height and the bottom surface 122 of the first embossing layer height; the first embossing layer high protrusions 12 are decorative lines and dots. The width d12 of the first embossing layer is generally between 0.4-1.6mm, the first embossing layer is high and the left side is 121, and the first embossing layer is high and the right side is 123. The side slope is about 20-30 degrees; the height of the first embossed layer is higher than the first embossed layer, the height of the convex height h12 is between 0.3-1mm higher than the low convex 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 embossed layers The protrusion width d21 of the flower layer and the protrusion height h21 of the second embossing layer; the protrusion 21 of the second embossing layer is raised from the left side 211 of the second embossing layer, the right side 212 of the second embossing layer is raised, The second embossed layer is composed of a raised bottom surface 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 0.4-1.6 mm, 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 Around 10-60 points/cm ^2;

As shown in FIG. 5, the third embossing layer 30 is embossed with a third embossing layer protrusion 31, a third embossing layer inter-protrusion plane 32, and a third embossing layer plane 33; The 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- Between 1.6mm, the single-side 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 average Around 30-80 dots/cm ^2.

The height h12 of the first embossed layer is greater than the height h11 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 through the second embossed layer 20 and the third embossed layer 30 to form discrete or continuous bonding points, and finally bond the three different embossed layers Lock together to 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 low protrusions 11 of the first embossed layer is supported by the plane 22 between the protrusions of the second embossed layer;

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 starting plane 22 squeezes the insert.

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 flat surface 22 between the protrusions of the second embossed layer are bonded to the flat surface 32 between the protrusions of the third embossed layer, and the protrusions 31 of the third embossed layer are bonded to the second embossed layer. The layer 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 application 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 20, which are squeezed and applied with a bonding agent 40, are bonded to the third embossed layer 30; the first embossed layer is highly convex 12 And the second embossed layer protrusion 21 and the third embossed layer protrusion plane 32 are bonded, the third embossed layer protrusion 31 and the second embossed layer protrusion plane 22 Squeeze sets.

The present application 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 molded 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 are extruded with the second embossed layer protrusions 21 Pressure 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 face under;

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 apply bonding agent on the trace; because the width of the first embossed layer low protrusion 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, 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 is supported by the plane 22 between the protrusions of the second embossed layer;

The first embossed layer 10 and the second embossed layer 20a, which are squeezed and applied with a bonding agent 40, are bonded to the third embossed layer 30; the first embossed layer is highly convex 12 And the second embossed layer protrusion 21 and the third embossed layer protrusion plane 32 are bonded, the third embossed layer protrusion 31 and the second embossed layer protrusion plane 22 Squeeze the insert, the first embossed layer high protrusion 21 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 on Together, a solid three-dimensional structure is formed.

Embodiment 2, as shown in FIG. 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 face under;

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 width of the low protrusions 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 d21 support, a part of the low protrusions 11 of the first embossed layer is 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 applied with a bonding agent 40, are bonded to the third embossed layer 30; the first embossed layer is highly convex 12 And the second embossed layer convex plane 22 and the third embossed layer convex plane 32 are bonded, the third embossed layer convex 31 and the second embossed layer convex 21 Squeeze the insert, the first embossed layer high protrusion 21 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 , Forming a solid three-dimensional structure.

Embodiment 3, as shown in FIG. 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 has the appearance of wrinkles, corrugated contours, and wavy contours. Some 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 face under;

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 width of the first embossed layer low protrusion 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 protrusions 21 of the second embossed layer, the low protrusions 11 of the first embossed layer are supported by the protrusions 21 of the second embossed layer;

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 is highly convex 12 And the second embossed layer protrusion 21 and the third embossed layer protrusion plane 32 are bonded, the third embossed layer protrusion 31 and the second embossed layer protrusion plane 22 Squeeze the insert, the first embossed layer high protrusion 21 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 , Forming a solid 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-layered pattern, the first embossed layer is highly convex and the second embossed layer is convex or second The surface of the embossed layer is extruded and the insert is applied with bonding agent on the plane. During the compounding 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. Embossing traces, and the bonding agent is applied to the traces, which are squeezed by a roller with a certain strength and then bonded together with the third embossed layer; because the low convex density of the first embossed layer is greater than that of the second embossed layer The density of embossed layer protrusions, 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 second embossed layer Plane support between the protrusions; maximize the product thickness, which is 52% higher than the traditional three-layer embossing process structure; the third embossing layer is mainly embossed dots with a certain density, and the density of embossed dots Generally similar to the first embossed layer, so as to obtain a similar touch feel; the first embossed layer on the first embossed layer is highly convex through the second and third embossed layers, and finally three different embossed layers The embossed layers are bonded and locked together to form a firm three-dimensional structure, thereby greatly improving 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.

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 protrusion height of the first embossed layer is greater than the protrusion height of the second embossed layer; the protrusion height of the second embossed layer is greater than or equal to the protrusion 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 compounded with the third embossed layer by a roller, and the sleeve is extruded The first embossed layer high protrusions and the second embossed layer protrusions and the third embossed layer protrusions coated with a bonding agent are planarly bonded, and the third embossed layer protrusions are The second embossing layer squeezes the insert in a plane between the protrusions. 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 compounded with the third embossed layer by a roller, and the sleeve is extruded The flat surface between the high protrusions of the first embossed layer and the protrusions of the second embossed layer and the flat surface between the protrusions of the third embossed layer, which are coated with a bonding agent, are bonded, and the third embossed layer is convex And the second embossing layer protruding extrusion sleeve. The paper towel according to claim 2 or 3, wherein the first embossed layer, the second embossed layer, and the third embossed 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 embossed 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 embossing layer are wavy structures, or the protrusions of the second embossing layer are embossing points. The paper towel according to claim 6, wherein the wavy structure is pleated, corrugated contour, or 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 paper towels, the paper towels 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 embossing rollers ； 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 extruded 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 embossed layer and the protrusions of the third embossed layer are planarly 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 paper towels, the paper towels 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 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 extruded 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 embossed layer is bonded with the plane between the protrusions of the third embossed layer, and the protrusions of the third embossed layer and the protrusions of the second embossed layer are extruded.

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