CN113500847A - Preparation method of multilayer composite material - Google Patents
Preparation method of multilayer composite material Download PDFInfo
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- CN113500847A CN113500847A CN202110780540.6A CN202110780540A CN113500847A CN 113500847 A CN113500847 A CN 113500847A CN 202110780540 A CN202110780540 A CN 202110780540A CN 113500847 A CN113500847 A CN 113500847A
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- film
- elastic
- multilayer composite
- porous
- surface material
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- 239000011185 multilayer composite material Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 81
- 230000007246 mechanism Effects 0.000 claims abstract description 67
- 239000002131 composite material Substances 0.000 claims abstract description 22
- 238000013329 compounding Methods 0.000 claims abstract description 16
- 239000000047 product Substances 0.000 claims abstract description 13
- 238000004080 punching Methods 0.000 claims abstract description 13
- 239000011265 semifinished product Substances 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 14
- 239000004745 nonwoven fabric Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 238000007731 hot pressing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 17
- 239000013013 elastic material Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
- B32B2038/0028—Stretching, elongating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
- B32B2038/047—Perforating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
Abstract
The invention belongs to the technical field of composite material preparation, and discloses a preparation method of a multilayer composite material, which specifically comprises the following steps: s1, intermediate material pretreatment: the unwinding mechanism releases a rolled intermediate material, the intermediate material comprises an inner non-elastic film, an intermediate elastic film and an outer non-elastic film which are sequentially connected, and the inner non-elastic film and the outer non-elastic film can be stretched and extended; the stretching mechanism stretches the intermediate material released by the unwinding mechanism to obtain an elastic intermediate film; the punching mechanism punches the elastic middle film to obtain a porous elastic middle film; s2, compounding surface materials: the traction mechanism pulls the surface material and the porous elastic intermediate film into the composite mechanism; the compounding mechanism compounds and fixes surface materials on one side or two sides of the porous elastic middle film to obtain a semi-finished product multilayer composite material; and the punching mechanism punches the semi-finished product multilayer composite material to obtain a porous finished product multilayer composite material.
Description
Technical Field
The invention belongs to the technical field of composite material preparation, and particularly relates to a preparation method of a multilayer composite material.
Background
At present, with the increasing use demand, the existing materials no longer only comprise a single material or a single layer, and in order to realize the advantageous combination between different materials, two or more layers of materials are often attached together to form a composite material made of multiple layers of materials, and the composite material can be used in various fields.
In the field of sanitary products, the preparation of disposable sanitary products is mostly carried out by adopting non-woven fabrics, but most of the existing non-woven fabric products have no elasticity, so that the use comfort of the non-woven fabric products is poor. To above-mentioned problem, can carry out the combined use with non-woven fabrics and elastic material, but because elastic material itself has better deformable effect, consequently make opening and transporting of elastic material have very big inconvenience in the production, and then influenced composite's effective shaping.
Disclosure of Invention
In view of the above, in order to solve the problems in the background art, the present invention aims to provide a method for preparing a multilayer composite material.
In order to achieve the purpose, the invention provides the following technical scheme: a method of making a multilayer composite comprising the steps of:
s1, intermediate material pretreatment:
(11) the unwinding mechanism releases a rolled intermediate material, the intermediate material comprises an inner non-elastic film, an intermediate elastic film and an outer non-elastic film which are sequentially connected, and the inner non-elastic film and the outer non-elastic film can be stretched and extended;
(12) the stretching mechanism stretches the intermediate material released by the unwinding mechanism to obtain an elastic intermediate film;
(13) the punching mechanism punches the elastic middle film to obtain a porous elastic middle film;
s2, compounding surface materials:
(21) the traction mechanism pulls the surface material and the porous elastic intermediate film into the composite mechanism;
(22) the compounding mechanism compounds and fixes surface materials on both sides of the porous elastic middle film to obtain a semi-finished product multilayer composite material;
(23) the punching mechanism punches the semi-finished product multilayer composite material to obtain a porous finished product multilayer composite material;
s3, rolling of a plurality of layers of composite materials:
(31) the traction mechanism draws the porous finished multilayer composite material into the winding mechanism;
(32) the rolling mechanism rolls and forms the porous finished product multilayer composite material.
Preferably, in the drawing of step (21), at least one surface material and at least one porous elastic intermediate film are drawn.
Preferably, in the compounding of step (22):
when the traction surface material is a layer, at least one layer of porous elastic intermediate film is compositely fixed on one side surface of the surface material layer;
when the traction surface material is more than one layer, the traction surface material is divided into an inner surface material and an outer surface material, the number of each part is at least one layer, and at least one layer of porous elastic intermediate film is compositely fixed between the inner surface material and the outer surface material.
Preferably, in the step of stretching the intermediate material, at least two stretches are included. Specifically, stretching tension adjusting operation is further included between every two adjacent stretching steps, and stretching tension before and after adjustment is obtained through detection of the sensors.
Preferably, the stretching tension adjusting operation includes: and recovering the tensile tension of the intermediate material to the state before stretching by a tension adjusting mechanism.
Preferably, the composite mechanism adopts any one of an ultrasonic welding mechanism, a hot pressing mechanism or a gluing mechanism.
Preferably, the surface material is non-woven fabric.
Preferably, after the pulling in the step (21) and the step (31), a deviation rectifying operation is further included, and the deviation rectifying operation is performed by a deviation rectifying mechanism.
Compared with the prior art, the invention has the following beneficial effects:
in the invention, the intermediate material with a multilayer structure is adopted, and when the intermediate material is uncoiled, the intermediate material in the current state is in an inelastic state based on the limitation of the inner inelastic film and the outer inelastic film, so that the uncoiling and the transportation of the intermediate material are conveniently realized; after stretching, the inner/outer non-elastic films are stretched and expanded, so that the elastic property of the middle elastic film is highlighted, and the whole middle material is in an elastic deformation state and compounded with the non-woven fabric to form a multi-layer composite material; in conclusion, the whole preparation method is simple, and the uncoiling and the transportation of the intermediate material are conveniently realized.
In the preparation method, the intermediate material before compounding and the multi-layer composite material after compounding are respectively punched, so that the air permeability and the use comfort of the whole material are effectively improved.
Drawings
FIG. 1 is a schematic structural view of an intermediate material used in the production method of the present invention;
FIG. 2 is a schematic structural view of a multilayer composite material produced by the production method of the present invention;
FIG. 3 is a process flow diagram of the preparation method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a preparation method of a multilayer composite material, and the method mainly comprises the following steps:
s1, intermediate material pretreatment:
(11) the unwinding mechanism releases the rolled intermediate material, which, as can be seen in fig. 1, includes an inner inelastic film, an intermediate elastic film, and an outer inelastic film connected in sequence, wherein both the inner inelastic film and the outer inelastic film are stretch-extensible. Specifically, in the unwinding and conveying process, the intermediate material in the current state is rendered inelastic (i.e., the characteristics exhibited by the inner inelastic film and the outer inelastic film) based on the definition of the inner inelastic film and the outer inelastic film, and the unwinding and conveying of the intermediate material is made very convenient based on the inelastic characteristic.
(12) The stretching mechanism stretches the intermediate material released by the unwinding mechanism to obtain an elastic intermediate film;
specifically, in the step, at least two times of stretching are included, and the stretching tension borne by the intermediate material is recovered to the position before stretching by a tension adjusting mechanism between every two adjacent stretching steps, wherein the stretching tensions before and after adjustment are obtained by detecting through a sensor; thus, the inner inelastic film and the outer inelastic film are stretched to form the films by the stretching operation, and the elastic elasticity of the intermediate elastic film is effectively enhanced in the state where the inner inelastic film and the outer inelastic film are thin and long, and the stretched intermediate material becomes the elastic intermediate film having elasticity.
Further, referring to fig. 3, in fig. 3, a and b constitute a primary stretching mechanism, c constitutes a tension adjusting mechanism, and d and e constitute a secondary stretching mechanism, it can be seen that the preparation flow chart shown in fig. 3 shows an example in which the intermediate material is stretched twice.
(13) The punching mechanism f punches the elastic middle film to obtain a porous elastic middle film;
specifically, in this step, the punching mechanism punches N (N ≧ 1) holes in the elastic intermediate film, and the punching shape is not limited, for example: circular, square, triangular, etc.
S2, compounding surface materials:
(21) sequentially drawing at least one layer of surface material and at least one layer of porous elastic intermediate film into a compounding mechanism i through a drawing mechanism g and a deviation rectifying mechanism h; specifically, the compound mechanism i adopts any one of an ultrasonic welding mechanism, a hot pressing mechanism or a gluing mechanism; the surface material is non-woven fabric.
(22) The compounding mechanism i compounds and fixes surface materials on one side or two sides of the porous elastic middle film to obtain a semi-finished product multilayer composite material; specifically, the method comprises the following steps:
when the traction surface material is a layer, the compounding mechanism i enables at least one layer of porous elastic intermediate film to be compounded and fixed on one side surface of one layer of surface material;
when the surface material to be pulled is more than one layer, the surface material is divided into an inner surface material and an outer surface material, the number of each part is at least one layer, and the compounding mechanism i enables at least one layer of porous elastic intermediate film to be compounded and fixed between the inner surface material and the outer surface material (as shown in figure 2).
(23) The punching mechanism j punches the semi-finished product multilayer composite material to obtain a porous finished product multilayer composite material; specifically, in this step, the punching mechanism punches N (N ≧ 1) holes on the semi-finished multilayer composite material, and the punching shape is not limited, for example: circular, square, triangular, etc.
S3, rolling of a plurality of layers of composite materials:
(31) the traction mechanism k draws the porous finished multilayer composite material into a winding mechanism l;
(32) the winding mechanism l winds and forms the porous finished product multilayer composite material.
In conclusion, the intermediate material is converted from an elastic state to an elastic state based on the traction and stretching of the stretching mechanism, so that the uncoiling and transportation of the intermediate material are conveniently realized, and the elastic material can be effectively applied to the composite material for preparing the disposable hygienic product; in addition, through the punching operation before and after compounding, the finished product of the finally molded multilayer composite material has good air permeability.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A method of making a multilayer composite, comprising the steps of:
s1, intermediate material pretreatment:
(11) the unwinding mechanism releases a rolled intermediate material, the intermediate material comprises an inner non-elastic film, an intermediate elastic film and an outer non-elastic film which are sequentially connected, and the inner non-elastic film and the outer non-elastic film can be stretched and extended;
(12) the stretching mechanism stretches the intermediate material released by the unwinding mechanism to obtain an elastic intermediate film;
(13) the punching mechanism punches the elastic middle film to obtain a porous elastic middle film;
s2, compounding surface materials:
(21) the traction mechanism pulls the surface material and the porous elastic intermediate film into the composite mechanism;
(22) the compounding mechanism compounds and fixes surface materials on one side or two sides of the porous elastic middle film to obtain a semi-finished product multilayer composite material;
(23) and the punching mechanism punches the semi-finished product multilayer composite material to obtain a porous finished product multilayer composite material.
2. The method of claim 1, wherein the step of forming the multilayer composite comprises: drawing in said step (21) at least one surface material and at least one porous elastic intermediate film.
3. A method for preparing a multilayer composite according to claim 2, characterized in that in the compounding of step (22):
when the traction surface material is a layer, at least one layer of porous elastic intermediate film is compositely fixed on one side surface of the surface material layer;
when the traction surface material is more than one layer, the traction surface material is divided into an inner surface material and an outer surface material, the number of each part is at least one layer, and at least one layer of porous elastic intermediate film is compositely fixed between the inner surface material and the outer surface material.
4. The method of claim 1, wherein the step of forming the multilayer composite comprises: in the step of stretching the intermediate material, at least two stretches are included.
5. The method of claim 4, wherein the step of forming the multilayer composite comprises: and (3) between every two adjacent stretching steps, stretching tension adjustment operation is further included, and the stretching tension before and after adjustment is obtained through detection of a sensor.
6. The method of claim 5, wherein the stretch-tensioning operation comprises:
and recovering the tensile tension of the intermediate material to the state before stretching by a tension adjusting mechanism.
7. The method of claim 1, wherein the step of forming the multilayer composite comprises: the compound mechanism adopts any one of an ultrasonic welding mechanism, a hot pressing mechanism or a gluing mechanism.
8. The method of claim 1, wherein the step of forming the multilayer composite comprises: the surface material adopts non-woven fabrics.
9. The method of claim 1, further comprising:
s3, rolling of a plurality of layers of composite materials:
(31) the traction mechanism draws the porous finished multilayer composite material into the winding mechanism;
(32) the rolling mechanism rolls and forms the porous finished product multilayer composite material.
10. A method of preparing a multilayer composite according to claim 9, wherein: after the step (21) and the step (31) of pulling, a deviation rectifying operation is further included, and the deviation rectifying operation is executed by a deviation rectifying mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110780540.6A CN113500847A (en) | 2021-07-09 | 2021-07-09 | Preparation method of multilayer composite material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110780540.6A CN113500847A (en) | 2021-07-09 | 2021-07-09 | Preparation method of multilayer composite material |
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| CN113500847A true CN113500847A (en) | 2021-10-15 |
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| CN202110780540.6A Pending CN113500847A (en) | 2021-07-09 | 2021-07-09 | Preparation method of multilayer composite material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116674282A (en) * | 2023-06-06 | 2023-09-01 | 山东鑫达鲁鑫防水材料有限公司 | Preparation method of polymer composite waterproof material |
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| WO2009091796A2 (en) * | 2008-01-14 | 2009-07-23 | Avery Dennison Corporation | Elastic laminate |
| WO2011162652A1 (en) * | 2010-06-23 | 2011-12-29 | Sca Hygiene Products Ab | A pant-type absorbent article and a method for its manufacture |
| CN209032153U (en) * | 2018-04-27 | 2019-06-28 | 杭州邦怡日用品科技有限公司 | A kind of nonwoven dedusting cleaning cloth and its specific complex device |
| CN111084693A (en) * | 2019-11-13 | 2020-05-01 | 黄山富田精工制造有限公司 | Apparatus assembly for manufacturing disposable wearing article and method of manufacturing the same |
| CN111452398A (en) * | 2019-06-06 | 2020-07-28 | 与时高分子科技(湖北)有限公司 | Strong cross membrane stretching equipment |
| CN111590983A (en) * | 2020-06-03 | 2020-08-28 | 广州市兴世机械制造有限公司 | Composite elastic sheet and manufacturing method and manufacturing equipment thereof |
| CN111823684A (en) * | 2019-04-15 | 2020-10-27 | 佛山市甘澍弹性材料科技有限公司 | Production device of longitudinal elastic composite non-woven fabric |
-
2021
- 2021-07-09 CN CN202110780540.6A patent/CN113500847A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1230106A (en) * | 1996-07-25 | 1999-09-29 | 普罗克特和甘保尔公司 | Absorbent article with elastic feature |
| CN1596094A (en) * | 2001-11-30 | 2005-03-16 | 屈德加薄膜产品股份有限公司 | Absorbent article with double-sided soft and elastic components |
| WO2009091796A2 (en) * | 2008-01-14 | 2009-07-23 | Avery Dennison Corporation | Elastic laminate |
| WO2011162652A1 (en) * | 2010-06-23 | 2011-12-29 | Sca Hygiene Products Ab | A pant-type absorbent article and a method for its manufacture |
| CN209032153U (en) * | 2018-04-27 | 2019-06-28 | 杭州邦怡日用品科技有限公司 | A kind of nonwoven dedusting cleaning cloth and its specific complex device |
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| CN111452398A (en) * | 2019-06-06 | 2020-07-28 | 与时高分子科技(湖北)有限公司 | Strong cross membrane stretching equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116674282A (en) * | 2023-06-06 | 2023-09-01 | 山东鑫达鲁鑫防水材料有限公司 | Preparation method of polymer composite waterproof material |
| CN116674282B (en) * | 2023-06-06 | 2023-12-29 | 山东鑫达鲁鑫防水材料有限公司 | Preparation method of polymer composite waterproof material |
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