CN115367248A - Novel composite pipe - Google Patents
Novel composite pipe Download PDFInfo
- Publication number
- CN115367248A CN115367248A CN202211078302.1A CN202211078302A CN115367248A CN 115367248 A CN115367248 A CN 115367248A CN 202211078302 A CN202211078302 A CN 202211078302A CN 115367248 A CN115367248 A CN 115367248A
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- Prior art keywords
- pipe
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- plastic
- shoulder
- novel composite
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- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 238000001746 injection moulding Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000005452 bending Methods 0.000 claims abstract description 5
- 239000011229 interlayer Substances 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 63
- 239000004033 plastic Substances 0.000 claims description 22
- 229920003023 plastic Polymers 0.000 claims description 22
- 239000000123 paper Substances 0.000 claims description 21
- 239000002985 plastic film Substances 0.000 claims description 10
- 229920006255 plastic film Polymers 0.000 claims description 10
- 239000006223 plastic coating Substances 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 8
- 241000680172 Platytroctidae Species 0.000 claims description 6
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 4
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical group C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004715 ethylene vinyl alcohol Substances 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000002655 kraft paper Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 2
- 238000010030 laminating Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 13
- 230000007613 environmental effect Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 235000008216 herbs Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
- B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered
-
- 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
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- 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
- B32B29/00—Layered products comprising a layer of paper or cardboard
-
- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
- B65D1/023—Neck construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
- B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
- B65D1/28—Thin-walled containers, e.g. formed by deep-drawing operations formed of laminated material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/46—Applications of disintegrable, dissolvable or edible materials
- B65D65/466—Bio- or photodegradable packaging materials
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/12—Coating on the layer surface on paper layer
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/716—Degradable
-
- 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
- B32B2597/00—Tubular articles, e.g. hoses, pipes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a novel composite pipe, which comprises a pipe shoulder with an open lower end and a pipe body with an open upper end, wherein the upper end of the pipe body is provided with a bending part, and the bending part of the pipe body is hermetically connected with the lower end of the pipe shoulder, and the novel composite pipe is characterized in that: the bending part of the pipe body is embedded in the interlayer of the pipe wall at the lower end of the pipe shoulder and is integrated with the pipe shoulder in an injection molding mode, so that the pipe body cannot contact with the paste. The sealing reliability of the pipe shoulder and the pipe body of the composite pipe is high.
Description
Technical Field
The invention belongs to the technical field of composite pipes, and particularly relates to a novel composite pipe.
Background
At present, composite pipes mainly comprise aluminum-plastic composite pipes and all-plastic composite pipes, the aluminum-plastic composite pipes are difficult to separate, so that the recovery is very difficult, and the all-plastic pipes can be completely recovered for granulation, but the recovery cost is higher; the degradation function cannot be realized; in addition, as the daily chemical packaging, especially the cosmetics, gradually release the natural herbal products, the corresponding packaging is needed from the market, but the problem is difficult to solve by the composite pipe and the extrusion pipe in the market at present, so that if a recyclable and environment-friendly composite hose with natural herbal feeling can be widely applied to the daily chemical packaging, the trend is great; the existing composite hose comprises a hose shoulder with an open lower end and a hose body with an open upper end, wherein the upper end of the hose body is provided with a bent part which is coated on the outer part of the lower end of the hose shoulder so as to realize the connection between the hose body and the hose shoulder;
however, in the prior art, (1) the tube body 2 of the composite hose is mostly made of a sheet material with a multilayer composite structure, and is exposed to the outermost layer of the composite hose, and after high temperature and high humidity and penetration of paste, the risk of delamination exists, and besides the appearance is affected, the sealing performance of the connection part of the tube shoulder 1 and the tube body 2 is damaged, and the substances in the tube are leaked or deteriorated; (2) The multilayer composite structure sheet material of the pipe body 2 material has the defect of poor environmental protection performance, even if the environmental protection material is added occasionally, the addition amount is not high and is less than 10 percent; the environmental protection is not obvious.
Thus, there is a need for a new composite pipe.
Disclosure of Invention
The invention provides a novel composite pipe, which solves the problem that the sealing reliability of a pipe shoulder and a pipe body of the composite pipe in the prior art is lower; meanwhile, the proportion of the environment-friendly material is ensured to reach more than 70 percent.
The technical scheme of the invention is realized as follows:
the utility model provides a subtract and mould environmental protection combined material, includes the open pipe shoulder of lower extreme and the open body in upper end, and the upper end of body is equipped with the flexion, the flexion of body with the lower extreme sealing connection of pipe shoulder, its characterized in that: the bending part of the pipe body is embedded in the interlayer of the pipe wall at the lower end of the pipe shoulder and is integrated with the pipe shoulder in an injection molding mode; so that the paste is not contacted.
As an improvement of the invention, the pipe body is made of a sheet material with a multilayer composite structure, the sheet material comprises a plastic coating transparent layer, an environment-friendly paper layer, a plastic bonding layer and a plastic film layer, the plastic coating transparent layer covers the surface of the paper layer, and the plastic bonding layer is bonded between the environment-friendly paper layer and the barrier plastic film layer.
As an embodiment of the present invention, the tube shoulder is formed by two-shot injection molding to achieve better safety.
As an embodiment of the present invention, the plastic coated transparent layer is a polyethylene film.
In one embodiment of the present invention, the environment-friendly material is a paper material such as a high-grammage copperplate paper layer, a kraft paper layer, or a white cardboard paper layer.
In one embodiment of the present invention, the plastic bonding layer is a thermal bonding plastic particle bonding layer.
As an embodiment of the invention, the barrier plastic film layer is an EVOH co-extruded layer.
As a preferred embodiment of the method of the present invention,
after the technical scheme is adopted, the invention has the beneficial effects that:
(1) According to the composite hose disclosed by the invention, the bent part of the hose body is embedded in the pipe wall at the lower end of the pipe shoulder and is integrated with the pipe shoulder in an injection molding manner, so that the risk of cracking of the connecting part of the hose body and the pipe shoulder due to exposure is avoided, the sealing reliability of composite software is greatly improved, the appearance, the functionality and the stability of the product disclosed by the invention meet the customer standard, and the high-temperature and high-humidity smearing test is greatly improved;
(2) The composite hose body is made of a multilayer composite structure sheet material which is composed of a plastic coating transparent layer, an environment-friendly paper layer, a plastic bonding layer and a barrier plastic EVOH co-extrusion layer, so that most of degradation and recovery can be realized, the degradation and recovery cost is low, the composite hose body is environment-friendly and practical, and the trend and the requirement of future sustainable development are facilitated;
(3) The proportion of the environment-friendly paper in the invention reaches more than 70%, and the usage amount of plastics is greatly reduced.
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, and 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 these drawings without creative efforts.
FIG. 1 is a cross-sectional view of the composite hose of the present invention;
fig. 2 is a cross-sectional view of a tubular body according to the present invention.
In the figure, 1, a tube body; 1a, mouth position; 1b, section; 2. a pipe shoulder; 2-1, inner cambered surface part; 2-2, a boss portion; 2-2a, lateral; 2-2b, top surface; 3. secondary injection molding; 3-1, a pipe orifice part; 3-2, performing secondary injection molding on the pipe shoulder; 3-2-1, cambered surface; a 3-2-2 connecting part; 3-2-2a, bottom surface; 4. an environment-friendly paper layer; 5. a plastic adhesive layer; 6. a barrier plastic film layer; 7. the plastic coats the transparent layer.
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.
As shown in fig. 1-2, the invention discloses a novel composite tube, which comprises a tube body 1 and a nozzle, wherein the tube body 1 is made of multilayer composite sheets, the nozzle comprises a primary injection molding tube shoulder 2 and a secondary injection molding part 3 which are respectively injected at a mouth position 1a of the tube body 1, the primary injection molding tube shoulder 2 comprises an inner arc surface part 2-1, the top end of the outer wall of the inner arc surface part 2-1 is provided with a boss part 2-2, the outer wall surface of the inner arc surface part 2-1 is attached to the inner wall surface of the tube body 1 at the mouth position 1a, and the side surface 2-2a of the boss part 2-2 is attached to a section 1b of the tube body 1 at the mouth position 1 a;
the secondary injection molding part 3 is composed of a pipe opening part 3-1 and a secondary injection molding pipe shoulder 3-2 which are integrally formed, the secondary injection molding pipe shoulder 3-2 comprises an outer arc surface part 3-2-1 and a connecting part 3-2-2, wherein the connecting part 3-2-2 is connected between the pipe opening part 3-1 and the outer arc surface part 3-2-1, the thickness of the connecting part 3-2-2 is larger than that of the outer arc surface part 3-2-1, namely the connecting part 3-2-2 forms a bottom surface 3-2-2a connected with the outer arc surface part 3-2-1, the inner wall surface of the outer arc surface part 3-2-1 is attached to the outer wall surface of the pipe body 1 at the opening part position 1a, and meanwhile, the bottom surface 3-2-2a of the connecting part 3-2-2 is attached to the top surface 2-2b of the boss part 2-2.
Therefore, the invention can utilize the primary injection molding pipe shoulder 2 and the secondary injection molding part 3 to completely wrap the mouth part position 1a of the pipe body 1, prevents the joint of the pipe shoulder and the pipe body of the composite hose from being exposed in the air or contacting with the content of the composite hose, has the advantage of stable sealing performance, and plays the roles of high temperature resistance, paste resistance and ether cracking resistance.
The pipe body 2 disclosed by the invention is made of a sheet material with a multilayer composite structure, the sheet material comprises a plastic coating transparent layer 7 for water resistance and printing, an environment-friendly paper layer 4 for reflecting the visual impression of natural herbs, a plastic bonding layer 5 for bonding and a recyclable and degradable barrier plastic film layer 6, the plastic coating transparent layer 7 covers the surface of the environment-friendly paper layer 4, and the plastic bonding layer 5 is bonded between the environment-friendly paper layer 4 and the barrier plastic film layer 6.
Wherein the plastic coating transparent layer is a polyethylene or polypropylene resin film coating layer; the environment-friendly paper layer is a copper plate paper layer, a kraft paper layer or a white cardboard paper layer; the plastic bonding layer is a hot-sticking plastic particle bonding layer; the barrier plastic film layer is an EVOH co-extrusion layer.
In order to verify the performance of the composite hose of the present invention, the following table 1 was identified, and thus the test results shown in tables 2 and 3 below were obtained.
TABLE 1
TABLE 2
TABLE 3
The above test data shows that:
1) After improvement, the appearance is basically consistent with that before
2) The performance of the composite hose disclosed by the invention is higher than that of the existing composite hose through various function detection data.
3) In the aspect of smearing the constant-temperature and constant-humidity paste, the composite hose disclosed by the invention avoids cracking caused by contact of the hose body with the paste and permeation.
4) The test is a batch test, and the accuracy of test data is ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a novel composite pipe, includes the open tube shoulder of lower extreme and the open body in upper end, the upper end of body is equipped with the flexion, the flexion of body with the lower extreme sealing connection of tube shoulder, its characterized in that: the bending part of the pipe body is embedded in the interlayer of the pipe wall at the lower end of the pipe shoulder and is integrated with the pipe shoulder in an injection molding mode, so that the pipe body cannot contact with the paste.
2. The novel composite tube of claim 1, wherein: the pipe body is made of a sheet with a multilayer composite structure, the sheet comprises a plastic coating transparent layer, an environment-friendly paper layer, a plastic bonding layer and a blocking plastic film layer, the plastic coating transparent layer covers the surface of the paper layer, and the plastic bonding layer is bonded between the environment-friendly paper layer and the blocking plastic film layer.
3. The novel composite pipe of claim 1, wherein: the pipe shoulder is formed by secondary injection molding.
4. The novel composite tube of claim 2, wherein: the plastic coating transparent layer is a polyethylene laminating layer.
5. The novel composite tube of claim 2, wherein: the environment-friendly paper layer is made of one of a high-gram-weight copper paper layer, a kraft paper layer or a white cardboard paper layer.
6. The novel composite tube of claim 2, wherein: the plastic bonding layer is a hot-bonding plastic particle bonding layer.
7. The novel composite pipe of claim 2, wherein: the barrier plastic film layer is an EVOH co-extrusion layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211078302.1A CN115367248A (en) | 2022-09-05 | 2022-09-05 | Novel composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211078302.1A CN115367248A (en) | 2022-09-05 | 2022-09-05 | Novel composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115367248A true CN115367248A (en) | 2022-11-22 |
Family
ID=84070011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211078302.1A Pending CN115367248A (en) | 2022-09-05 | 2022-09-05 | Novel composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115367248A (en) |
-
2022
- 2022-09-05 CN CN202211078302.1A patent/CN115367248A/en active Pending
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