CN110481102B - Three-path embossing equipment and process - Google Patents
Three-path embossing equipment and process Download PDFInfo
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- CN110481102B CN110481102B CN201910867284.7A CN201910867284A CN110481102B CN 110481102 B CN110481102 B CN 110481102B CN 201910867284 A CN201910867284 A CN 201910867284A CN 110481102 B CN110481102 B CN 110481102B
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- 238000004049 embossing Methods 0.000 title claims abstract description 675
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000002131 composite material Substances 0.000 claims description 50
- 239000007767 bonding agent Substances 0.000 claims description 44
- 230000013011 mating Effects 0.000 claims description 27
- 239000011230 binding agent Substances 0.000 claims description 11
- 238000013329 compounding Methods 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 4
- 230000009965 odorless effect Effects 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 abstract description 14
- 230000000704 physical effect Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 414
- 238000003475 lamination Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 239000002344 surface layer Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000012792 core layer Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000000419 plant extract Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F2201/00—Mechanical deformation of paper or cardboard without removing material
- B31F2201/07—Embossing
- B31F2201/0707—Embossing by tools working continuously
- B31F2201/0715—The tools being rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F2201/00—Mechanical deformation of paper or cardboard without removing material
- B31F2201/07—Embossing
- B31F2201/0771—Other aspects of the embossing operations
- B31F2201/0774—Multiple successive embossing operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F2201/00—Mechanical deformation of paper or cardboard without removing material
- B31F2201/07—Embossing
- B31F2201/0782—Layout of the complete embossing machine, of the embossing line
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Paper (AREA)
Abstract
The application discloses three-path embossing equipment and a process, wherein three-path embossing patterns are limited by the three-path embossing equipment, and a first embossing layer and a second embossing layer are compounded with a guide roller and a compound bonding part rubber roller through a first path embossing roller and are bonded with a third embossing layer after being extruded by a compound roller; a part of the first embossing layer low protrusions are supported by the second embossing layer protrusions, and a part of the first embossing layer low protrusions are supported by the second embossing layer inter-protrusion plane, so that the thickness of a product is improved to the greatest extent; the high bulges of the first embossing layer on the first embossing layer penetrate through the second embossing layer and the third embossing layer, and finally three different embossing layers are bonded and locked together to form a firm three-dimensional structure, so that the physical properties of the tissue product in the aspects of thickness, touch feeling, absorbability and the like are improved to a greater extent.
Description
Technical Field
The invention relates to three-path embossing equipment and process, in particular to three-path embossing equipment and process.
Background
The paper towel is generally manufactured by natural pollution-free raw materials such as wood pulp, bamboo pulp, cotton pulp, straw pulp and the like, comprises paper towels, paper napkins, paper handkerchiefs, wet tissues, paper towels and kitchen paper towels and the like according to purposes, and can be divided into single layers, double layers and multiple layers according to the structure of the paper towel; in order to change the layering of the paper, each layer of paper is adhered by embossing, and the physical properties of the paper such as thickness, touch (surface softness), absorbability (fluffiness softness) and the like of the paper are also influenced in the embossing process, so that the embossing process becomes a key link for influencing the performance of the paper in the papermaking technology.
The embossed toilet paper structure currently existing in the market is mainly manufactured by an embossing process and adhesion of the toilet paper after embossing (embossed composite structure). The prior embossed toilet paper mainly takes two-path embossing, and the prior known disclosed three-path embossed toilet paper is subject to process restriction, so that the advantages of the prior three-path embossed structure product relative to the two-path embossed product are not obvious.
CN201510439764.5 process for producing multi-layered embossed toilet-roll, the base paper is unwound: unreeling base paper to be embossed; fine embossing of the surface layer: introducing one or more layers of surface layer base paper to an upper fine embossing roller pair to press fine embossing to obtain fine embossed paper; rough embossing of the surface layer and the core layer: and (3) rolling the obtained fine embossed paper and a layer of core layer base paper to a coarse embossing roller pair for coarse embossing to obtain coarse embossed paper, and coating a bonding agent: introducing the obtained coarse embossed paper to a roller pair formed by a binder-coated water rubber roller and a coarse embossed steel roller, and coating a binder on the side concave surface of the obtained coarse embossed paper core layer to obtain the spot-gluing coarse embossed paper; fine embossing of the bottom layer: introducing a layer of base paper of the bottom layer to a lower fine embossing roller pair to press fine embossing to obtain fine embossed paper of the bottom layer; rewinding and packaging: rewinding the obtained dispensing coarse embossed paper and the obtained bottom fine embossed paper, bonding and connecting the coarse embossed concave surface of the dispensing coarse embossed paper and the concave surface of the bottom fine embossed paper in the rewinding process, and packaging to obtain the multilayer embossed toilet roll with the surface convex surface and the bottom convex surface arranged oppositely.
The proposal realizes three-path embossing of the surface layer, the core layer and the bottom layer, and the advantages of the existing three-path embossing structure product relative to the two-path embossing product are not obvious due to the process restriction. The surface layer is broken by stretching fracture to a large extent because of twice embossing, so that the surface layer toilet paper is low in strength and easy to rot after being wet, and the user experience is reduced. The structure formed by combining the surface layer and the core layer which are embossed twice cannot greatly improve the thickness structure of the product, and the absorbency and the hand feeling change are not obvious.
Disclosure of Invention
In view of the above, the present invention provides a three-path embossing apparatus and process for solving the problems in the prior art.
A three-path embossing device comprises a first path, a second path and a third path; the first path comprises a first path embossing roller and a first path matching roller; the periphery of the first path embossing roller is sequentially provided with a first path matching roller, a composite bonding part and a composite part in a laminating way; the first path embossing roller is provided with a first path embossing roller low bulge and a first path embossing roller high bulge;
the first embossing layer passes through the first path embossing roller and the first path matching roller along the first path, and a first embossing layer low protrusion and a first embossing layer high protrusion are embossed on the first embossing layer;
The second embossing layer is provided with second embossing layer bulges and a plane between the second embossing layer bulges, the second embossing layer passes through a guide roller along the second path, and the first path embossing roller and the composite bonding part are extruded with the second embossing layer to be sleeved and coated with bonding agent; the guide roller is arranged on the right side of a tangent line of the contact position of the first path embossing roller and the composite bonding part, so that the second embossing layer is contacted with the first path embossing roller and then contacted with the composite bonding part;
the first embossing layer high protrusions and the second embossing layer protrusions squeeze the inlay sleeve and are coated with bonding agents; a portion of the first embossing layer low protrusions are supported by the second embossing layer protrusions; or the plane between the first embossing layer high bulges and the second embossing layer bulges is extruded and sleeved with a bonding agent, and a part of the first embossing layer low bulges are supported by the plane between the second embossing layer bulges;
The third embossed layer is compounded with the first and second embossed layers compounded and binder coated along the third path.
Preferably, the third path includes a third path embossing roller and a third path mating roller; the third path embossing roller is provided with third path embossing roller bulges; a third embossing layer passes through the third path embossing roller and the third path matching roller along the third path, and third embossing layer bulges are embossed on the third embossing layer;
And the first embossing layer and the second embossing layer which are compounded and coated with bonding agents are bonded with the plane between the third embossing layer bulges, and the plane between the third embossing layer bulges and the second embossing layer bulges is extruded and inlaid or the plane between the third embossing layer bulges and the second embossing layer bulges is extruded and inlaid.
Preferably, the second path includes a second path embossing roller and a second path mating roller; the second path embossing roller is provided with second path embossing roller bulges; the second embossing layer passes through the second path embossing roller and the second path matching roller along the second path, and the second embossing layer is embossed with second embossing layer bulges and second embossing layer bulges-to-bulge planes.
Preferably, the first path embossing roller has a density of low protrusions that is greater than a density of protrusions of the second path embossing roller.
Preferably, the compound binding portion comprises a compound binding portion rubber roller and a compound binding portion mesh roller, and the binding agent sequentially passes through the first embossing layer and the second embossing layer of the compound binding portion mesh roller and the compound binding portion rubber roller pair extrusion bushing, and then the bushing is extruded again and the binding agent is coated.
Preferably, the binding agent is glue or water or natural extract; the binding agent is colored or fragrant or colorless and odorless.
Preferably, the composite part is a composite roller.
Preferably, the method further comprises mechanically laminating the third embossed layer by a mechanical laminate patterned roll and a mechanical laminate bottom roll prior to entering the third path.
Preferably, the embossing machine further comprises a guide roller, and the first embossing layer, the second embossing layer and the third embossing layer are guided by the guide roller.
Preferably, the third embossing layer is one, two or more layers.
Preferably, the second path embossing roll and the second path mating roll are both embossing rolls.
The application also comprises a three-path embossing process for realizing the three-path embossing equipment, wherein the first embossing layer is embossed along the first path through the first path embossing roller and the first path matching roller; a second embossing ply is embossed along the second path through the second path embossing roll and a second path mating roll; a third embossing layer is embossed along the third path through the third path embossing roller and a third path mating roller;
The first embossing layer passes through the guide roller, and is sleeved with the second embossing layer in a pressing way at the first path embossing roller and the composite bonding part and coated with a bonding agent;
The third embossing layer is compounded with the first embossing layer and the second embossing layer compounded and coated with the bonding agent along the third path by a compounding roller and the first path embossing roller.
In summary, the present invention provides a three-path embossing device and process, which defines three-layer embossing patterns by using a three-path embossing device, wherein a plane between a first embossing layer high protrusion and a second embossing layer protrusion or a plane between the second embossing layer protrusions is extruded and sleeved with a bonding agent, and the first embossing layer and the second embossing layer are bonded with the third embossing layer after being extruded by a composite roller and a certain force of the first path embossing roller, and in the process of compositing the first embossing layer and the second embossing layer with the composite bonding part rubber roller, embossing marks of the first embossing layer high protrusion are left on the surface of the second embossing layer, and bonding agents are smeared on the embossing marks; a part of the first embossing layer low protrusions are supported by the second embossing layer protrusions, a part of the first embossing layer low protrusions are supported by the plane between the second embossing layer protrusions, the thickness of a product is improved to the greatest extent, and compared with a traditional three-layer embossing process structure, the thickness of the product is improved by about 52%; the high bulges of the first embossing layer on the first embossing layer penetrate through the second embossing layer and the third embossing layer, and finally three different embossing layers are bonded and locked together to form a firm three-dimensional structure, so that the physical properties of the tissue product in the aspects of thickness, touch feeling, absorbability and the like are improved to a greater extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a three-path embossing apparatus of the prior art;
FIG. 2 is a schematic diagram of a prior art three-path embossing process;
FIG. 3a is a schematic diagram of a three-path embossing apparatus of the present application;
FIG. 3b is an enlarged schematic view of a portion of a three-path embossing apparatus of the present application;
FIG. 3c is an enlarged schematic view of a portion of a three-path embossing apparatus of the present application;
FIG. 3d is an enlarged schematic view of a portion of a three-path embossing apparatus of the present application;
FIG. 3e is an enlarged schematic view of a portion of a three-path embossing apparatus of the present application;
FIG. 3f is an enlarged schematic view of a portion of a three-path embossing apparatus of the present application;
FIG. 4 is a schematic view of a first embossed layer;
FIG. 5 is a schematic view of a second embossed layer;
FIG. 6 is a schematic view of a third embossed layer;
FIG. 7 is an exploded schematic view of the first to third embossed layers;
FIG. 8 is a composite schematic of first and second embossed layers;
FIG. 9 is a schematic illustration of the first and second embossed layers being combined with a third embossed layer after being combined;
FIG. 10 is a schematic diagram of example 1 of a three-layer embossing process;
FIG. 11 is a schematic diagram of example 2 of a three-layer embossing process;
FIG. 12 is a schematic diagram of example 3 of a three-layer embossing process;
FIG. 13 is a schematic view of another version of the three-path embossing apparatus of the present application;
FIG. 14a is a schematic view of another version of the three-path embossing apparatus of the present application;
FIG. 14b is an enlarged partial schematic view of another version of the three-path embossing apparatus of the present application;
In the figure: 1. a first path, 1a, a first path embossing roller, 1b, a first path mating roller, 11a, a first path embossing roller low projection, 11b, a first path embossing roller high projection, 10, a first embossing ply, 11, a first embossing ply low projection, d11, a first embossing ply low projection width, h11, a first embossing ply low projection height, 111, a first embossing ply low projection left side, 113, a first embossing ply low projection right side, 112, a first embossing ply low projection bottom, 12, a first embossing ply high projection, d12, a first embossing ply high projection width, h12, a first embossing ply high projection width, 121, a first embossing ply high projection left side, 123, a first embossing ply high projection right side, 122, a first embossing ply high projection bottom, 13, a first embossing ply plane, 2, a second path, 2a second path embossing roller, 2b, a second path mating roller, 21a second path roller projection, 20.second embossing ply, 21.second embossing ply protuberance, d 21.second embossing ply protuberance width, h 21.second embossing ply protuberance height, 211.second embossing ply protuberance left side, 212.second embossing ply protuberance right side, 213.second embossing ply protuberance bottom, 22.second embossing ply protuberance plane, d 22.second embossing ply protuberance plane width, 23.second embossing ply plane, 3.third path, 3 a.third path embossing roller, 3 b.third path mating roller, 31 a.third path embossing roller protuberance, 30.third embossing ply, 31.third embossing ply protuberance, 311.third embossing ply protuberance left side, 312.third embossing ply protuberance right side, 313.third embossing ply protuberance bottom, d 31.third embossing ply protuberance width, h 31.third embossing ply protuberance height, 32.third embossing ply protuberance plane, 33.third embossing ply plane, 4. composite bond, 4a, composite bond glue roll, 4b, composite bond mesh roll, 40, binder, 5, composite, 5a, composite roll, 6, guide roll, 7, mechanical laminate, 7a, mechanical laminate pattern roll, 7b, mechanical laminate base roll, 8, tension roll, 9, guide roll.
Detailed Description
The embodiment of the invention provides three-path embossing equipment and a three-path embossing process, which are used for solving the problems in the prior art.
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order to more particularly describe the present invention, a three-path embossing apparatus and process provided by the present invention is described in detail below with reference to the accompanying drawings.
The embossing layer plane refers to the plane of the paper towel layer before embossing; the embossing bulge width refers to the width of the bulge bottom surface formed after embossing the embossing layer plane, and the embossing bulge height refers to the distance between the embossing layer plane and the bulge bottom surface formed after embossing; the embossing inter-bump plane refers to the plane of the embossing layer between the embossing bumps that is not embossed.
A three-path embossing apparatus as shown in fig. 3a-3f, comprising a first path 1, a second path 2, a third path 3; the first path 1 comprises a first path embossing roller 1a and a first path matching roller 1b; the periphery of the first path embossing roller 1a is sequentially provided with a first path matching roller 1b, a composite bonding part 4 and a composite part 5 in a laminating manner; the first path embossing roller is provided with a first path embossing roller low protrusion 11a and a first path embossing roller high protrusion 12a;
As shown in fig. 3a, the guiding roller 6 is disposed on the right side of the tangent line of the contact position between the first path mating roller 1b and the composite bonding part, so as to ensure that the second embossing layer 20 contacts the first path embossing roller 1b before contacting the composite bonding part;
As shown in fig. 4 and 7-9, the first embossing layer 10 passes through the first path embossing roller 1a and the first path matching roller 1b along the first path 1, and the first embossing layer 10 is embossed with a first embossing layer low protrusion 11, a first embossing layer high protrusion 12 and a first embossing layer plane 13;
The first embossing layer low protrusion 11 includes a first embossing layer low protrusion width d11 and a first embossing layer low protrusion height h11; the first embossing layer low protrusion width d11 refers to the width of the protrusion bottom surface formed after embossing, and the first embossing layer low protrusion height h11 refers to the distance between the embossing layer plane and the protrusion bottom surface formed after embossing; the first embossing layer low protrusion 11 is composed of a first embossing layer low protrusion left side 111, a first embossing layer low protrusion right side 113 and a first embossing layer low protrusion bottom 112; the first embossing layer low protrusions 11 may be used to improve the embossing touch, typically have a height h11 of around 0.6mm and a first embossing layer low protrusion width d11 of between 0.3-0.7 mm; the single side slope of the first embossing layer low protuberance left side edge 111, the first embossing layer low protuberance right side edge 113 is about 25-35 degrees, and the density of the first embossing layer low protuberance 11 is generally between 40-80 points/cm 2.
The first embossing layer high protrusion 12 comprises a first embossing layer high protrusion width d12 and a first embossing layer high protrusion height h12, and the first embossing layer high protrusion 12 is composed of a first embossing layer high protrusion left side 121, a first embossing layer high protrusion right side 123 and a first embossing layer high protrusion bottom surface 122; the first embossing layer high protrusion 12 is a combined pattern of a decorative line and dots, the width d12 of the first embossing layer high protrusion is generally between 0.4 and 1.6mm, and the single-side gradient of the left side edge 121 of the first embossing layer high protrusion and the right side edge 123 of the first embossing layer high protrusion is about 20 to 30 degrees; the height of the first embossing layer high protrusion height h12 is between 0.3 and 1mm higher than the first embossing layer low protrusion height h 11.
As shown in fig. 5 and 7-9, the second embossing layer 20 is provided with second embossing layer protrusions 21 and second embossing layer inter-protrusion planes 22; the second embossing layer protuberance 21 includes a second embossing layer protuberance width d21 and a second embossing layer protuberance height h21; the second embossing layer protuberance 21 is composed of a second embossing layer protuberance left side 211, a second embossing layer protuberance right side 212, and a second embossing layer protuberance bottom surface 213; the second embossing layer inter-projection plane 22 has a second embossing layer inter-projection plane width d22; the width d21 of the second embossing layer bulge is generally 0.4-1.6mm, and the single-side gradient of the left side 211 and the right side 212 of the second embossing layer bulge is about 20-30 degrees; the density of the second embossing layer protrusions 21 is generally about 10-60 dots/cm 2;
The second embossing layer 20 is an existing molded product, and the second embossing layer 20 can also pass through the second path embossing roller 2a and the second path matching roller 2b along the second path 2 in fig. 3, the second path embossing roller 2a is provided with a second path embossing roller protrusion 21a, and the second embossing layer 20 is embossed with a second embossing layer protrusion 21 and a second embossing layer protrusion plane 22.
As shown in fig. 6 and 7-9, the third embossing layer 30 passes through the third path embossing roller 3a and the third path matching roller 3b along the third path 3, the third path embossing roller 3a is provided with third path embossing roller protrusions 31a, and the third embossing layer 30 is embossed with third embossing layer protrusions 31, third embossing layer inter-protrusion planes 32 and third embossing layer planes 33; the third embossing layer protuberance 31 includes a third embossing layer protuberance width d31 and a third embossing layer protuberance height h31; the third embossing layer protuberance 31 is composed of a third embossing layer protuberance left side 311, a third embossing layer protuberance right side 312, and a third embossing layer protuberance bottom 313; the third embossing layer bulge height h31 is about 0.6-1.5mm, the third embossing layer bulge width d31 is about 0.3-1.6mm, and the single-side gradient of the third embossing layer bulge left side edge 311 and the third embossing layer bulge right side edge 312 is about 25-35 degrees; the density of the third embossing layer protrusions 31 is generally around 30-80 dots/cm 2.
The second embossing layer 20 passes through the guide roller 6 along the second path 2, and the guide roller 6 is arranged on the right side of a tangent line of a contact position of the first path matching roller 1b and the composite bonding part so as to ensure that the second embossing layer 20 is contacted with the first path embossing roller 1b and then contacted with the composite bonding part; at the first path embossing roll 1b and the composite bond, the first embossing layer 10 and the second embossing layer 20 squeeze the sheathing and apply the bonding agent;
The first embossing layer high protrusions 12 and the second embossing layer protrusions 21 press the insert; a part of the first embossing layer lower protrusions 11 is supported by the second embossing layer protrusions 21;
Or the first embossing layer 10 and the second embossing layer 20 press the insert through the roll compounding process, the first embossing layer high protrusions 12 and the second embossing layer inter-protrusion plane 22; a portion of the first embossing layer lower protrusions 11 are supported by the second embossing layer inter-protrusion plane 22;
The first embossing layer 10 and the second embossing layer 20 after being composited and coated with the bonding agent are composited with the third embossing layer 30 through the composite roller 5 a; the first embossing layer high protrusions 12 and the second embossing layer protrusions 21, which squeeze the insert twice and apply the bonding agent, are bonded to the third embossing layer inter-protrusion plane 32, and the third embossing layer protrusions 31 squeeze the insert with the second embossing layer inter-protrusion plane 22.
The first embossing layer 10 and the second embossing layer 20 after being compounded and coated with the bonding agent are compounded with the third embossing layer 30 by the compounding roller 5a, the first embossing layer high protrusions 12 and the second embossing layer inter-protrusion plane 22 which are extruded and coated with the bonding agent are bonded with the third embossing layer inter-protrusion plane 32, and the third embossing layer protrusions 31 and the second embossing layer protrusions 21 are extruded and sleeved.
The first embossing layer 10, the second embossing layer 20, and the third embossing layer 30 are guided by the guide roller 9 and the tension roller 8.
Since the height of the first path embossing roller high protrusions 12a is greater than the height of the second path embossing roller protrusions 21a, the first embossing layer high protrusion height h12 is greater than the second embossing layer protrusion height h11; the height of the second path embossing roller protuberance 21a is more than or equal to the height of the third path embossing roller protuberance 31a, and the second embossing layer protuberance height h21 is more than or equal to the third embossing layer protuberance height h31; the first embossing layer high protrusions 12 on the first embossing layer penetrate through the second embossing layer 20 and the third embossing layer 30 to form discrete or continuous bonding points, and finally three different embossing layers are bonded and locked together to form a firm three-dimensional structure;
the width of the first embossing layer low protrusion d11 is smaller than or equal to the width d21 of the second embossing layer protrusion or the width d22 of the second embossing layer inter-protrusion plane;
Since the density of the first path embossing roller low protrusions 11a is greater than that of the second path embossing roller protrusions 21a, the density of the first embossing layer low protrusions 11 is greater than that of the second embossing layer protrusions 21, a part of the first embossing layer low protrusions 11 are supported by the second embossing layer inter-protrusion plane 22, discrete or continuous supporting points are formed, and the product thickness is improved to the greatest extent; a part of the second embossing layer protrusions are supported by the third embossing layer protrusions 31 and a part of the second embossing layer protrusions are supported by the third embossing layer inter-protrusion plane 32.
The compound binding portion 4 comprises a compound binding portion rubber roll 4a and a compound binding portion mesh roll 4b, and the bonding agent 40 sequentially passes through the compound binding portion mesh roll 4b and the compound binding portion rubber roll 4a to squeeze the first embossing layer 10 and the second embossing layer 20 of the veneering, squeeze the veneering again and coat the bonding agent 40.
The linear velocity ratio of the compound adhesive mesh roll 4b to the compound adhesive rubber roll 4a is between 30% and 100%, the compound adhesive rubber roll 4a slightly presses the first embossing layer 10 and the second embossing layer 20, and glue applied to the back surface of the second embossing layer 20 penetrates and adheres to the embossing salient points of the first embossing layer 10 and the second embossing layer 20 by a certain pressing force, and simultaneously applies the bonding agent 40.
The bonding agent 40 is glue or water or natural extract; the binding agent is colored or fragrant or colorless and odorless. The binder may be colored or scented or colorless and odorless and may be added depending on the particular tissue product.
As shown in fig. 13, in another embodiment of the three-path embossing apparatus of the present application, the second path embossing roller 2a and the second path mating roller 2b are both embossing rollers.
By means of two embossing rollers, the second embossing layer 20 passes through the second path embossing roller 2a and the second path matching roller 2b (embossing roller) along the second path 2, and the second embossing layer 20 is fluffier and thicker, so that glue applied on the back surface of the second embossing layer 20 is more beneficial to penetrate and adhere to the first embossing layer 10.
As shown in fig. 14, in another embodiment of the three-path embossing apparatus of the present application, the third embossing layer 30 is one, two or more layers. When the third embossed layer 30 is a plurality of layers, it is necessary to use a lamination unit to achieve pre-mechanical lamination of toilet paper of 2 or more layers, and further includes a mechanical lamination part 7, the mechanical lamination part 7 including a mechanical lamination part embossing roller 7a and a mechanical lamination part bottom roller 7b, and the third embossed layer 30 is mechanically laminated by the mechanical lamination part embossing roller 7a and the mechanical lamination part bottom roller 7b before entering the third path. So that the multi-layered toilet paper of the path 2 remains after the complex 5 without separating the integrity of the multi-layered toilet paper of the path 2.
As shown in fig. 14, in another embodiment of the three-path embossing apparatus of the present application, the compounding section 5 is a compounding roll 5a. The composite part 5 is a steel flat roller and a rubber flat roller, as can be seen from comparison of fig. 3f and fig. 14b, the steel flat roller has small deformation in the process of contacting with the first path embossing roller 1a, and can realize stronger composite, and meanwhile, the composite reduces the amount of composite glue, or is replaced by liquid with lower viscosity performance, such as clear water or natural plant extract; when the composite part 5 is a steel roller, the surface of the steel roller is smooth, the hardness is generally equal to or more than HRC50, and the line pressure of the composite part 5 is generally equal to or more than 15kg/cm; when the composite part 5 is a steel roll, the sizing amount can be reduced to a large extent, or the composite part is directly replaced by pure water or natural plant extract liquid. When the composite part 5 is a steel roll, the pure mechanical embossing process can be realized by increasing the line pressure, and the composite bonding part 4 is separated from work, and the line pressure is generally 25kg/cm or more.
The application also comprises a three-path embossing process realized by the three-path embossing equipment, wherein the first embossing layer 10 is embossed along the first path 1 through the first path embossing roller 1a and the first path matching roller 1 b; the second embossing layer 20 is embossed along the second path 2 through the second path embossing roller 2a and the second path mating roller 2 b; the third embossed layer 30 is embossed along the third path 3 through the third path embossing roller 3a and the third path mating roller 3b;
the first embossing layer 10 passes through the guide roller 6, presses the sheathing with the second embossing layer 20 and coats the bonding agent 40 at the first path embossing roller and the composite bonding part;
The third embossed layer 30 is compounded with the first and second embossed layers 10 and 20 compounded and applied with a bonding agent along the third path 3 by the compounding roller 5a and the first path embossing roller 1 a.
As shown in fig. 10, a three-path embossing process, a first embossed layer 10 is embossed along the first path 1 through the first path embossing roller 1a and a first path mating roller 1 b; the second embossing layer 20 is embossed along the second path 2 through the second path embossing roller 2a and the second path mating roller 2 b; the third embossed layer 30 is embossed along the third path 3 through the third path embossing roller 3a and the third path mating roller 3b;
the first embossing layer 10 is embossed with a first embossing layer low protrusion 11, a first embossing layer high protrusion 12 and a first embossing layer plane 13; the first embossing layer low protrusions 11 are pressing points for improving embossing touch sense, and the first embossing layer high protrusions 12 are combined patterns of decorative lines and points; the first embossing layer low protrusions 11 and the first embossing layer high protrusions 12 are downward;
the second embossing layer is provided with second embossing layer bulges 21 and second embossing layer bulge-bulge plane 22 on the second embossing layer; the second embossing layer protuberance 21 faces downwards;
the third embossing layer 30 is embossed with third embossing layer protrusions 31, third embossing layer inter-protrusion planes 32 and third embossing layer planes 33; the third embossing layer protuberance 31 faces upward;
The first embossing layer 10 and the second embossing layer 20 are compounded by a roller to be coated with a bonding agent 40, the first embossing layer high protrusions 12 and the second embossing layer protrusions 21 squeeze the veneers and are coated with the bonding agent 40, and in the compounding process of the first embossing layer 10 and the second embossing layer 20, embossing marks of the first embossing layer high protrusions 12 are left on the second embossing layer protrusion bottom surface 213, and the marks are coated with the bonding agent; since the first embossing layer low protrusions d11 have a width equal to or smaller than the second embossing layer protrusion width d21, since the first embossing layer low protrusions 11 have a density greater than that of the second embossing layer protrusions 21, a portion of the first embossing layer low protrusions 11 are supported by the second embossing layer protrusions 21 and a portion of the first embossing layer low protrusions 11 are supported by the second embossing layer inter-protrusion plane 22;
The first embossing layer 10 and the second embossing layer 20, which are press-fit and coated with the bonding agent 40, are bonded to the third embossing layer 30; the first embossing layer high protrusions 12 and the second embossing layer protrusions 21 are adhered to the third embossing layer inter-protrusion plane 32, the third embossing layer protrusions 31 and the second embossing layer inter-protrusion plane 22 squeeze the insert, the first embossing layer high protrusions 21 on the first embossing layer penetrate through the second embossing layer 20 and the third embossing layer 30, and finally three different embossing layers are adhered and locked together to form a firm three-dimensional structure.
As shown in fig. 11, one process of three-path embossing, a first embossed layer 10 is embossed along the first path 1 through the first path embossing roll 1a and a first path mating roll 1 b; the second embossing layer 20 is embossed along the second path 2 through the second path embossing roller 2a and the second path mating roller 2 b; the third embossed layer 30 is embossed along the third path 3 through the third path embossing roller 3a and the third path mating roller 3b;
the first embossing layer 10 is embossed with a first embossing layer low protrusion 11, a first embossing layer high protrusion 12 and a first embossing layer plane 13; the first embossing layer low protrusions 11 are pressing points for improving embossing touch sense, and the first embossing layer high protrusions 12 are combined patterns of decorative lines and points; the first embossing layer low protrusions 11 and the first embossing layer high protrusions 12 are downward;
The second embossing layer is provided with second embossing layer bulges 21 and second embossing layer bulge-bulge plane 22 on the second embossing layer; the second embossed layer protrusions 21 face upward;
the third embossing layer 30 is embossed with third embossing layer protrusions 31, third embossing layer inter-protrusion planes 32 and third embossing layer planes 33; the third embossing layer protuberance 31 faces upward;
The first embossing layer 10 and the second embossing layer 20 are compounded by a roller to be coated with a bonding agent 40, the first embossing layer high protrusions 12 and the second embossing layer inter-protrusion planes 22 are extruded to be sleeved and coated with the bonding agent 40, and embossing marks of the first embossing layer high protrusions 12 are left on the second embossing layer inter-protrusion planes 22 in the compounding process of the first embossing layer 10 and the second embossing layer 20, and the marks are coated with the bonding agent; since the width of the first embossing layer low protrusions d11 is equal to or less than the second embossing layer inter-protrusion plane width d22, since the density of the first embossing layer low protrusions 11 is greater than the density of the second embossing layer protrusions 21, a part of the first embossing layer low protrusions 11 are supported by two second embossing layer protrusions d21 at the upper end of the second embossing layer inter-protrusion plane 22, and a part of the first embossing layer low protrusions 11 are supported by the second embossing layer inter-protrusion plane 22;
the first embossing layer 10 and the second embossing layer 20, which are press-fit and coated with the bonding agent 40, are bonded to the third embossing layer 30; the first embossing layer high protrusions 12 and the second embossing layer inter-protrusion planes 22 are adhered to the third embossing layer inter-protrusion planes 32, the third embossing layer protrusions 31 and the second embossing layer protrusions 21 squeeze the insert, the first embossing layer high protrusions 21 on the first embossing layer penetrate through the second embossing layer 20 and the third embossing layer 30, and finally three different embossing layers are adhered and locked together to form a firm three-dimensional structure.
As shown in fig. 12, a third process of three-path embossing, a first embossing layer 10 is embossed along the first path 1 through the first path embossing roller 1a and the first path mating roller 1 b; the second embossing layer 20 is embossed along the second path 2 through the second path embossing roller 2a and the second path mating roller 2 b; the third embossed layer 30 is embossed along the third path 3 through the third path embossing roller 3a and the third path mating roller 3b; the second embossed layer 20c is a corrugated, contoured, prior known product;
the first embossing layer 10 is embossed with a first embossing layer low protrusion 11, a first embossing layer high protrusion 12 and a first embossing layer plane 13; the first embossing layer low protrusions 11 are pressing points for improving embossing touch sense, and the first embossing layer high protrusions 12 are combined patterns of decorative lines and points; the first embossing layer low protrusions 11 and the first embossing layer high protrusions 12 are downward;
the second embossing layer is of a corrugated structure such as a fold, a corrugated contour, a wavy contour and the like, and is provided with upward bulges and downward bulges, and the downward bulges can be understood as the bulges of the second embossing layer;
The second embossing layer bulges are wave structures formed in the wet paper making process, or the second embossing layer bulges are embossing press points formed by using an embossing machine for dry paper.
The wave structure is a corrugation, a corrugated profile, a wavy profile, and the processing method thereof can be formed by the prior art such as TAD, NTT, QRT, ATMOS, eTAD and the like.
The third embossing layer 30 is embossed with third embossing layer protrusions 31, third embossing layer inter-protrusion planes 32 and third embossing layer planes 33; the third embossing layer protuberance 31 faces upward;
The first embossing layer 10 and the second embossing layer 20 are compounded by a roller to be coated with a bonding agent 40, the first embossing layer high protrusions 12 and the second embossing layer protrusions 21 squeeze the veneers and are coated with the bonding agent 40, and in the compounding process of the first embossing layer 10 and the second embossing layer 20, embossing marks of the first embossing layer high protrusions 12 are left on the second embossing layer protrusion bottom surface 213, and the marks are coated with the bonding agent; since the first embossing layer low protrusions d11 have a width equal to or less than the second embossing layer protrusions d21, since the first embossing layer low protrusions 11 have a density greater than that of the second embossing layer protrusions 21, the first embossing layer low protrusions 11 are supported by the second embossing layer protrusions 21;
The first embossing layer 10 and the second embossing layer 20, which are press-fit and coated with the bonding agent 40, are bonded to the third embossing layer 30; the first embossing layer high protrusions 12 and the second embossing layer protrusions 21 are adhered to the third embossing layer inter-protrusion plane 32, the third embossing layer protrusions 31 and the second embossing layer inter-protrusion plane 22 squeeze the insert, the first embossing layer high protrusions 21 on the first embossing layer penetrate through the second embossing layer 20 and the third embossing layer 30, and finally three different embossing layers are adhered and locked together to form a firm three-dimensional structure.
In summary, the present invention provides a three-path embossing device and process, which defines three-layer embossing patterns by using a three-path embossing device, wherein a plane between a first embossing layer high protrusion and a second embossing layer protrusion or between the second embossing layer protrusions is extruded and sleeved with a bonding agent, and the first embossing layer and the second embossing layer are extruded with a certain force by a roller to be bonded with a third embossing layer after passing through the first path embossing roller, the guide roller and the composite bonding part rubber roller for two times, and embossing marks of the first embossing layer high protrusion are left on the surface of the second embossing layer, and the marks are coated with the bonding agent; since the density of the first embossing layer low protrusions is greater than the density of the second embossing layer protrusions, a portion of the first embossing layer low protrusions are supported by the second embossing layer protrusions and a portion of the first embossing layer low protrusions are supported by the second embossing layer inter-protrusion plane; the thickness of the product is improved to the greatest extent, and is improved by 52% compared with the traditional three-layer embossing process structure; the third embossing layer is mainly embossing small points with a certain density, and the density of the embossing points is generally similar to that of the first embossing layer, so that similar touch handfeel is obtained; the high bulges of the first embossing layer on the first embossing layer penetrate through the second embossing layer and the third embossing layer, and finally three different embossing layers are bonded and locked together to form a firm three-dimensional structure, so that the physical properties of the tissue product in the aspects of thickness, touch feeling, absorbability and the like are improved to a greater extent. The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (11)
1. A three-path embossing device comprises a first path, a second path and a third path; the method is characterized in that: the first path comprises a first path embossing roller and a first path matching roller; the periphery of the first path embossing roller is sequentially provided with a first path matching roller, a composite bonding part and a composite part in a laminating way; the first path embossing roller is provided with a first path embossing roller low bulge and a first path embossing roller high bulge; the second path comprises a second path embossing roller and a second path matching roller, and second path embossing roller bulges are arranged on the second path embossing roller;
the first embossing layer passes through the first path embossing roller and the first path matching roller along the first path, and a first embossing layer low protrusion and a first embossing layer high protrusion are embossed on the first embossing layer;
the second embossing layer is provided with second embossing layer bulges and a plane between the second embossing layer bulges, the second embossing layer passes through a guide roller along the second path, and the first path embossing roller and the composite bonding part are extruded with the first embossing layer to be sheathed and coated with bonding agent;
the guide roller is arranged on the right side of a tangent line of the contact position of the first path embossing roller and the composite bonding part, so that the second embossing layer is contacted with the first path embossing roller and then contacted with the composite bonding part;
the first embossing layer high protrusions and the second embossing layer protrusions squeeze the inlay sleeve and are coated with bonding agents; a portion of the first embossing layer low protrusions are supported by the second embossing layer protrusions; or the plane between the first embossing layer high bulges and the second embossing layer bulges is extruded and sleeved with a bonding agent, and a part of the first embossing layer low bulges are supported by the plane between the second embossing layer bulges;
the third embossing layer is compounded with the first embossing layer and the second embossing layer after being compounded and coated with the bonding agent along the third path;
the first embossing layer high protrusions on the first embossing layer penetrate through the second embossing layer and the third embossing layer to form discrete or continuous bonding points, and three different embossing layers are bonded and locked together;
the first path embossing roll has a density of low embossments greater than a density of embossments of the second path embossing roll.
2. The three-path embossing apparatus of claim 1, wherein the third path comprises a third path embossing roller and a third path mating roller; the third path embossing roller is provided with third path embossing roller bulges; a third embossing layer passes through the third path embossing roller and the third path matching roller along the third path, and third embossing layer bulges are embossed on the third embossing layer;
And the first embossing layer and the second embossing layer are compounded and coated with a bonding agent, and are bonded with the plane between the third embossing layer bulges, and the plane between the third embossing layer bulges and the second embossing layer bulges is extruded and inlaid or the plane between the third embossing layer bulges and the second embossing layer bulges is extruded and inlaid.
3. A three-path embossing apparatus as set forth in claim 1 wherein a second embossing ply passes along the second path over the second path embossing roller and second path mating roller, the second embossing ply being embossed with second embossing ply embossments and second embossing ply embossment-to-embossment planes.
4. A three-path embossing apparatus as claimed in claim 2 or 3 wherein the composite bond comprises a composite bond ply roller and a composite bond mesh roller, the bonding agent passing through the composite bond mesh roller and the composite bond ply roller in sequence to squeeze the first and second embossing layers of the sleeve again to squeeze the sleeve and apply the bonding agent.
5. A three-path embossing apparatus as claimed in claim 4, wherein the bonding agent is glue or water or natural extract; the binding agent is colored or fragrant or colorless and odorless.
6. A three-path embossing apparatus as in claim 2 or 3 wherein the composite is a composite roll.
7. The three-path embossing apparatus of claim 1, further comprising a mechanical laminate patterned roll and a mechanical laminate bottom roll, the third embossed layer being mechanically laminated by the mechanical laminate patterned roll and the mechanical laminate bottom roll prior to entering the third path.
8. The three-path embossing apparatus of claim 1, further comprising guide rollers, wherein the first embossing layer, the second embossing layer, and the third embossing layer are each guided by the guide rollers.
9. A three-path embossing apparatus as in claim 3, wherein the third embossing layer is one, two or more layers.
10. The three-path embossing apparatus of claim 9, wherein the second path embossing roller and the second path mating roller are each embossing rollers.
11. A three-path embossing process implemented by a three-path embossing apparatus according to any one of claims 1 to 10, a first embossing layer being embossed along the first path through the first path embossing roller and a first path mating roller; a second embossing ply is embossed along the second path through the second path embossing roll and a second path mating roll; a third embossing layer is embossed along the third path through the third path embossing roller and a third path mating roller;
the first embossing layer passes through the guide roller, and is sleeved with the second embossing layer in a pressing way at the first path matching roller and the composite bonding part and coated with a bonding agent;
and the third embossing layer is compounded with the first embossing layer and the second embossing layer which are compounded and coated with bonding agent through the compounding part and the first path embossing roller along the third path.
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