CN111851148A - Waterproof composite paper and processing technology - Google Patents
Waterproof composite paper and processing technology Download PDFInfo
- Publication number
- CN111851148A CN111851148A CN202010802250.2A CN202010802250A CN111851148A CN 111851148 A CN111851148 A CN 111851148A CN 202010802250 A CN202010802250 A CN 202010802250A CN 111851148 A CN111851148 A CN 111851148A
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- China
- Prior art keywords
- layer
- waterproof
- paper
- raw
- protective layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 45
- 238000005516 engineering process Methods 0.000 title claims abstract description 10
- 239000010410 layer Substances 0.000 claims abstract description 120
- 239000011241 protective layer Substances 0.000 claims abstract description 42
- 239000003973 paint Substances 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims description 22
- 238000000576 coating method Methods 0.000 claims description 22
- 238000001035 drying Methods 0.000 claims description 7
- 239000005871 repellent Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000004806 packaging method and process Methods 0.000 abstract description 4
- 238000010923 batch production Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 108
- 230000000694 effects Effects 0.000 description 6
- 239000002356 single layer Substances 0.000 description 5
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/18—Paper- or board-based structures for surface covering
- D21H27/20—Flexible structures being applied by the user, e.g. wallpaper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/04—Physical treatment, e.g. heating, irradiating
- D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
Landscapes
- Laminated Bodies (AREA)
- Paper (AREA)
- Wrappers (AREA)
Abstract
The invention provides waterproof composite paper and a processing technology, relates to the technical field of composite paper processing and manufacturing, and solves the technical problem that various kinds of paper in the prior art cannot be simultaneously waterproof, degradable and capable of being produced in batches. The device comprises a raw paper layer, a waterproof layer and an protective layer, wherein the waterproof layer is arranged on the raw paper layer, the protective layer is arranged on one side end face of the waterproof layer deviated from the raw paper layer, the waterproof layer comprises waterproof paint, and the waterproof paint is coated on the surface of the raw paper layer. The invention is used for packaging articles, is used for protecting parts or products inside the composite paper package from being influenced by the environment to cause product abnormity, and the design of the protective layer can effectively avoid adhesion among different waterproof composite paper, thereby being more beneficial to stacking of paper and facilitating batch production of the paper.
Description
Technical Field
The invention relates to the technical field of composite paper processing and manufacturing, in particular to waterproof composite paper and a processing technology thereof.
Background
The existing waterproof and moistureproof measures in the paper product market are generally means of surface coating, adding a moistureproof material into base paper pulp, printing and coating waterproof gloss oil or waterproof paint on the surface of the base paper and the like, and are mostly applied to the packaging aspect for preventing articles inside the package from being affected with damp.
The waterproof gloss oil or the base paper pulp is added with the moisture-proof material to play a certain moisture-proof role only, and the paper pulp has no effect on long-time soaking of paper products in water.
The paper coated with the surface film has good waterproof effect, but the surface is not easy to be adhered with common glue. And the film is not easy to degrade.
After the surface is coated with the waterproof coating, the waterproof effect is good, and the degradation is easy. But the surface of the waterproof layer is very adhesive and the drying time is slow. Which is not conducive to stacked storage or mass production of paper.
The existing paper product can not realize the purposes of water resistance, degradation and batch production.
Therefore, the invention needs to invent a compound paper with good waterproof performance to solve the problem that various papers can not realize waterproofing, degradation and batch production at the same time.
Disclosure of Invention
The invention aims to provide waterproof composite paper and a processing technology thereof, and solves the technical problem that various kinds of paper in the prior art cannot be simultaneously waterproof, degradable and capable of being produced in batches. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a waterproof composite paper, which comprises a raw paper layer, a waterproof layer and a protective layer,
the waterproof layer is arranged on the raw paper layer, and the protective layer is arranged on the end face, away from the raw paper layer, of one side of the waterproof layer;
the waterproof layer comprises waterproof paint, and the waterproof paint is coated on the surface of the raw paper layer.
Preferably, the waterproof layer is bonded with the raw paper layer and the waterproof layer is bonded with the protective layer.
Preferably, the raw paper layer and the protective layer both comprise base raw paper.
Preferably, the protective layer comprises a layer of the base paper.
Preferably, the protective layer comprises a plurality of layers of the base paper.
Preferably, the waterproof layers are arranged between the base papers of the multiple base layers.
Preferably, the base paper of the multiple layers is bonded with each other.
Preferably, the protective layer comprises corrugated paper or honeycomb core paper.
The invention provides a processing technology of waterproof composite paper, which comprises the following steps:
f1, flatly paving the raw paper layer;
f2, coating the waterproof paint: uniformly coating the waterproof coating along the outer surface of the raw paper layer;
f3, adhering the protective layer: uniformly sticking the protective layer on the waterproof layer;
f4, drying: and drying the formed waterproof composite paper.
Preferably, the waterproof layer is made of waterproof paint, and the waterproof paint is smeared on the surface of the raw paper layer in a rubber roller smearing mode.
According to the technical scheme, the paper packaging structure comprises the raw paper layer, the waterproof layer and the protective layer which are arranged in a stacked mode, wherein the waterproof layer comprises waterproof paint, the waterproof paint is coated on the surface of the raw paper layer, one side of the waterproof paint is the raw paper layer, and the other side of the waterproof paint is the protective layer, so that the waterproof paint can be prevented from being exposed, and therefore different waterproof composite papers can be prevented from being adhered to each other, the different composite papers can be stacked, mass production is facilitated, meanwhile, the waterproof composite papers made of the waterproof paint have degradable performance, and a package made of the composite papers not only meets the requirement of green environmental protection, but also can effectively prevent products or parts inside the package from being influenced by the external.
The preferred technical scheme of the invention can at least produce the following technical effects: the raw paper layer and the waterproof layer both comprise base raw paper, the same raw paper can be adopted, and a waterproof layer structure is arranged in the middle of the raw paper layer and the waterproof layer structure to prevent the waterproof layer from being exposed, so that the bonding between different waterproof type composite papers is avoided;
the protective layer can be a plurality of layers or a layer of base layer base paper, and when the base layer base paper with the plurality of layers is adopted, a waterproof layer can be additionally arranged between the adjacent base layer base papers or the base layer base papers are bonded through a bonding agent;
the protective layer can be corrugated paper or honeycomb core paper, and waterproof composite paper with different structures is manufactured to meet different packaging requirements.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a single-layer waterproof composite paper provided by an embodiment of the present invention;
fig. 2 is a schematic structural view of a waterproof composite paper comprising multiple raw paper layers and protective layers according to an embodiment of the present invention;
FIG. 3 is a schematic view of a waterproof composite paper with a multi-layer waterproof layer structure according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a waterproof composite paper with a corrugated paper as a protective layer according to an embodiment of the present invention.
FIG. 1-raw paper layer; 2-waterproof layer; 3-a protective layer; 4-base layer base paper.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The specific embodiment of the invention provides a waterproof composite paper, which comprises a raw paper layer 1, a waterproof layer 2 and a protective layer 3 as shown in figure 1, wherein the raw paper layer 1, the waterproof layer 2 and the protective layer 3 are sequentially stacked, the waterproof layer 2 is arranged on the raw paper layer 1, and the protective layer 3 is arranged on the end surface of one side of the waterproof layer 2, which is far away from the raw paper layer 1; the waterproof layer 2 can adopt a waterproof coating structure, waterproof coating is coated on the surface of the raw paper layer 1, the waterproof layer 2 and the raw paper layer 1 are bonded, the waterproof layer 2 and the protective layer 3 are bonded, the waterproof coating has adhesion and can play a role in mounting the raw paper layer 1 and the protective layer 3, and the protective layer 3 is bonded on the waterproof layer 2.
According to a preferable technical scheme, the base layer paper layer 1 and the protective layer 3 can be both made of base layer base paper 4, wherein the base layer paper layer 1 and the protective layer 3 can both adopt a structural form of single-layer base paper 4 or multi-layer base paper 4, when the base layer paper layer 1 and the protective layer 3 are both single-layer base paper 4, as shown in the attached drawing 1, only one side surface of one base layer base paper 4 needs to be coated with waterproof paint, and then the other base layer base paper 4 is covered on the coated waterproof paint layer and bonded together.
One of the raw paper layer 1 or the protective layer 3 may be a single-layer base paper 4, and the other may be a multi-layer base paper 4, and each layer of the multi-layer base paper 4 may be bonded or coated with a waterproof coating to form a waterproof layer 2, so as to form a waterproof composite paper structure with a multi-layer waterproof layer structure as shown in fig. 3. The waterproof performance and the structural strength of the multiple waterproof layer 2 composite paper are both larger than those of the waterproof type composite paper with a single-layer waterproof layer 2 structure.
When the layers of the multi-layer base paper 4 are bonded together by glue, the base paper layer 1 or the protective layer 3 with increased structural strength can be formed, and the structural strength of the waterproof composite paper is enhanced to form a paperboard with higher strength, so that a package with higher resistance can be manufactured.
Therefore, the protective layer 3 can be designed into a corrugated paper or honeycomb core paper structure, such as the corrugated paper structure shown in fig. 4, which can be used in a wider field by enhancing the structural strength of the waterproof composite paper, for example, the composite paper can be further compounded, printed, cut and the like, and can be widely used in various paper product industries for containing articles with larger quality; the composite paper is used for manufacturing waterproof paper boxes and waterproof paper trays, and the effect is particularly outstanding.
The specific embodiment of the invention also provides a processing technology of the waterproof composite paper, wherein the processing technology comprises the following steps:
f1, laying the raw paper layer 1 flatly, wherein the raw paper layer 1 can be directly laid flatly in a paper form, and can also be in a structural shape such as a tray, a paper box or a rubber pier;
f2, coating waterproof paint: the waterproof coating is uniformly coated on the outer surface of the raw paper layer 1 according to different structural shapes of the raw paper layer 1, the waterproof coating can be coated in a manner of immersing, spraying or coating by a rubber roll, and the like, and the waterproof coating is coated on the surface of the raw paper layer 1 by a rubber roll coating manner in light weight
F3, pasting a protective layer 3: the waterproof coating has the characteristics of viscosity and slow drying time, and after the raw paper layer 1 is coated, the protective layer 3 is uniformly adhered to the waterproof layer 2 formed by the waterproof coating, so that waterproof composite paper is formed;
f4, and finally, drying the waterproof composite paper formed by mounting to finally form the finished waterproof composite paper.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The waterproof composite paper is characterized by comprising a raw paper layer (1), a waterproof layer (2) and a protective layer (3),
the waterproof layer (2) is arranged on the raw paper layer (1), and the protective layer (3) is arranged on the end surface of one side, deviating from the raw paper layer (1), of the waterproof layer (2);
the waterproof layer (2) comprises waterproof paint, and the waterproof paint is coated on the surface of the raw paper layer (1).
2. The waterproof composite paper according to claim 1, characterized in that said waterproof layer (2) is bonded to said raw paper layer (1) and said waterproof layer (2) is bonded to said protective layer (3).
3. The waterproof composite paper according to claim 1, characterised in that the raw paper layer (1) and the protective layer (3) each comprise a base raw paper (4).
4. The waterproof composite paper according to claim 3, characterised in that said protective layer (3) comprises a layer of base paper (4).
5. The waterproof composite paper according to claim 3, characterised in that said protective layer (3) comprises a plurality of layers of base paper (4).
6. The waterproof composite paper according to claim 5, wherein the waterproof layer (2) is arranged between the base paper (4).
7. The waterproof composite paper according to claim 5, wherein the base paper (4) is bonded to each other.
8. The water-repellent composite paper according to claim 1, characterized in that the protective layer (3) comprises corrugated or honeycomb core paper.
9. The processing technology of the waterproof composite paper as claimed in claims 1 to 8, characterized by comprising the following steps:
f1, laying the raw paper layer (1) flat;
f2, coating the waterproof paint: uniformly coating the waterproof coating along the outer surface of the raw paper layer (1);
f3, adhering the protective layer (3): the protective layer (3) is uniformly adhered to the waterproof layer (2);
f4, drying: and drying the formed waterproof composite paper.
10. The processing technology of the waterproof composite paper as claimed in claim 9, wherein the waterproof layer (2) is made of waterproof paint, and the waterproof paint is coated on the surface of the raw paper layer (1) in a rubber roll coating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010802250.2A CN111851148A (en) | 2020-08-11 | 2020-08-11 | Waterproof composite paper and processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010802250.2A CN111851148A (en) | 2020-08-11 | 2020-08-11 | Waterproof composite paper and processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111851148A true CN111851148A (en) | 2020-10-30 |
Family
ID=72971251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010802250.2A Pending CN111851148A (en) | 2020-08-11 | 2020-08-11 | Waterproof composite paper and processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111851148A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100746574B1 (en) * | 2006-04-12 | 2007-08-06 | 명진 케미칼 주식회사 | Manufacturing method of composite waterproof sheet and construction method using the sheet |
| KR100869273B1 (en) * | 2008-03-13 | 2008-11-18 | (주)조은포장 | The method of manufacture of strengthening corrugated cardboard for waterproof |
| CN107009693A (en) * | 2017-04-10 | 2017-08-04 | 达成包装制品（苏州）有限公司 | Freeze aquatic products carton and its preparation technology |
| KR20180004543A (en) * | 2016-07-04 | 2018-01-12 | 두선산업 주식회사 | Laminated paper for packaging electronics and food having improved waterproof and package box comprising the same |
| CN107984859A (en) * | 2017-12-11 | 2018-05-04 | 浙江希望包装有限公司 | A kind of corrugated board and preparation method thereof |
| CN207417536U (en) * | 2017-10-19 | 2018-05-29 | 邯郸市昀沣包装材料有限公司 | A kind of new waterproof corrugated case |
| CN108179661A (en) * | 2018-01-15 | 2018-06-19 | 特耐王包装（福州）有限公司 | A kind of high-strength waterproof MULTILAYER COMPOSITE corrugated board |
| CN208020889U (en) * | 2018-01-24 | 2018-10-30 | 重庆松雨纸业有限公司 | High-strength composite corrugated board |
| CN208165471U (en) * | 2018-05-07 | 2018-11-30 | 郑州华英包装股份有限公司 | A kind of corrugated multilayer case |
| CN209466784U (en) * | 2018-12-18 | 2019-10-08 | 东莞市康韵包装材料有限公司 | A kind of gift box overwrap of multilayered structure |
| CN209836674U (en) * | 2018-12-26 | 2019-12-24 | 上海宏图尚威环保科技股份有限公司 | Multilayer composite highlight paperboard |
| CN111231425A (en) * | 2020-02-20 | 2020-06-05 | 上海乐盈纸业有限公司 | Waterproof corrugated paper and preparation method thereof |
| CN212477278U (en) * | 2020-08-11 | 2021-02-05 | 烟台鸿特新材料有限公司 | Waterproof type composite paper |
-
2020
- 2020-08-11 CN CN202010802250.2A patent/CN111851148A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100746574B1 (en) * | 2006-04-12 | 2007-08-06 | 명진 케미칼 주식회사 | Manufacturing method of composite waterproof sheet and construction method using the sheet |
| KR100869273B1 (en) * | 2008-03-13 | 2008-11-18 | (주)조은포장 | The method of manufacture of strengthening corrugated cardboard for waterproof |
| KR20180004543A (en) * | 2016-07-04 | 2018-01-12 | 두선산업 주식회사 | Laminated paper for packaging electronics and food having improved waterproof and package box comprising the same |
| CN107009693A (en) * | 2017-04-10 | 2017-08-04 | 达成包装制品（苏州）有限公司 | Freeze aquatic products carton and its preparation technology |
| CN207417536U (en) * | 2017-10-19 | 2018-05-29 | 邯郸市昀沣包装材料有限公司 | A kind of new waterproof corrugated case |
| CN107984859A (en) * | 2017-12-11 | 2018-05-04 | 浙江希望包装有限公司 | A kind of corrugated board and preparation method thereof |
| CN108179661A (en) * | 2018-01-15 | 2018-06-19 | 特耐王包装（福州）有限公司 | A kind of high-strength waterproof MULTILAYER COMPOSITE corrugated board |
| CN208020889U (en) * | 2018-01-24 | 2018-10-30 | 重庆松雨纸业有限公司 | High-strength composite corrugated board |
| CN208165471U (en) * | 2018-05-07 | 2018-11-30 | 郑州华英包装股份有限公司 | A kind of corrugated multilayer case |
| CN209466784U (en) * | 2018-12-18 | 2019-10-08 | 东莞市康韵包装材料有限公司 | A kind of gift box overwrap of multilayered structure |
| CN209836674U (en) * | 2018-12-26 | 2019-12-24 | 上海宏图尚威环保科技股份有限公司 | Multilayer composite highlight paperboard |
| CN111231425A (en) * | 2020-02-20 | 2020-06-05 | 上海乐盈纸业有限公司 | Waterproof corrugated paper and preparation method thereof |
| CN212477278U (en) * | 2020-08-11 | 2021-02-05 | 烟台鸿特新材料有限公司 | Waterproof type composite paper |
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