CN110844323A - Packaging film - Google Patents
Packaging film Download PDFInfo
- Publication number
- CN110844323A CN110844323A CN201911296697.0A CN201911296697A CN110844323A CN 110844323 A CN110844323 A CN 110844323A CN 201911296697 A CN201911296697 A CN 201911296697A CN 110844323 A CN110844323 A CN 110844323A
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- Prior art keywords
- connecting section
- width
- same
- connection
- thickness
- 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
- 229920006280 packaging film Polymers 0.000 title abstract description 26
- 239000012785 packaging film Substances 0.000 title abstract description 26
- 239000012790 adhesive layer Substances 0.000 claims abstract description 24
- 239000010410 layer Substances 0.000 claims abstract description 21
- 238000004806 packaging method and process Methods 0.000 claims description 8
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 238000005538 encapsulation Methods 0.000 claims 3
- 229920000742 Cotton Polymers 0.000 abstract description 44
- 239000000853 adhesive Substances 0.000 abstract description 10
- 230000001070 adhesive effect Effects 0.000 abstract description 10
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000012856 packing Methods 0.000 description 16
- 238000004804 winding Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000037303 wrinkles Effects 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
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/02—Wrappers or flexible covers
- B65D65/04—Wrappers or flexible covers non-rectangular
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packaging Of Machine Parts And Wound Products (AREA)
Abstract
The invention relates to a packaging film, which comprises a first part, a second part, a third part and a fourth part which are connected in sequence; a first bonding layer is arranged on the third part, and a second bonding layer is arranged on the same side of the fourth part and the third part; the second adhesive layer has a higher viscosity than the first adhesive layer. By providing the first and second portions with no adhesive, adhesion to the cotton is prevented and unpacking is facilitated. The third part and the fourth part are provided with the adhesive layers, so that after the second part is completely wound on the cotton roll, the third part is wound on the second part, the adhesive layers are arranged on the third part, the third part can be better adhered to the second part, the third part is prevented from being separated, the viscosity of the second adhesive layer arranged on the fourth part is greater than that of the first adhesive layer, and the packaging film on the cotton roll is firmer at the sealing position.
Description
Technical Field
The invention relates to a packaging material, in particular to a packaging film.
Background
The packaging film is one of packaging materials commonly used for agricultural harvesting operation, is soft in texture and large in packaging amount per time, and is suitable for on-site packaging of cash crops such as cotton. When packing, the baling press utilizes the packing to beat the diolame and wrap up the packing material, then packs the baling film again and decides, pastes the sticky tape at the department of deciding at last and seals and can accomplish the packing operation. The packing method has low efficiency, and under the condition that the mechanized operation efficiency is higher and higher, the packing method is very unfavorable for large-scale efficient operation. And then to this kind of drawback, appeared one kind and set up viscidity district and non-viscidity district's packing film in turn on the packing film, realized when packing is accomplished, realized bonding by the viscidity district on the packing film, improved packing efficiency. The initial state of the packaging film with the viscous area is a film roll, the packaging film is required to be firstly peeled off from the film roll when in use, and then the viscosity of the viscous area is often not too strong in order to prevent the next layer of packaging film from being torn due to too high viscosity. And because the viscosity of the viscous area for coating the film is low, the phenomenon that the packaging film is separated after the packaged cotton roll is kept still for a period of time is often easy to occur, so that the whole cotton roll is loose and cannot be assembled and disassembled, and the packaging effect is seriously influenced.
Disclosure of Invention
The invention aims to provide a packaging film, which solves the problem that the packaging film is easy to loosen after packaging is finished.
In order to achieve the above object, the present invention provides a wrapping film comprising a first part, a second part, a third part and a fourth part connected in sequence;
a first bonding layer is arranged on the third part, and a second bonding layer is arranged on the same side of the fourth part and the third part;
the second adhesive layer has a higher viscosity than the first adhesive layer.
According to an aspect of the invention, the first portion is provided with a silicone oil layer on the same side as the third portion and the fourth portion.
According to one aspect of the invention, the thickness of the second portion is greater than the thickness of the third portion.
According to one aspect of the invention, the thickness of the first portion is the same as the thickness of the second portion;
the thickness of the fourth portion is the same as the thickness of the third portion.
According to one aspect of the invention, the second part comprises: the first connecting section is connected with the first part, the second connecting section is connected with the first connecting section, and the third connecting section is respectively connected with the second connecting section and the third part;
the width of the first connecting section is smaller than that of the third connecting section;
the width of the front end of the second connecting section is the same as that of the first connecting section, and the width of the rear end of the second connecting section is the same as that of the third connecting section.
According to one aspect of the invention, the length of the second connecting section is at least one half of the length of the first connecting section in the length direction.
According to an aspect of the present invention, two sides of the second connecting section in the width direction are straight sides or arc sides arranged obliquely.
According to one aspect of the invention, the first portion is the same width as the first connecting section;
the width of the third portion is the same as the width of the third connecting section;
the fourth portion has a width that is the same as the width of the first portion.
According to one aspect of the present invention, one end of the third portion connected to the fourth portion has a fourth connection section;
along the width direction, two side edges of the fourth connecting section are straight edges or arc edges which are obliquely arranged.
According to one aspect of the present invention, in the width direction, both side edges of the fourth connecting section are straight edges arranged obliquely, and the angle of the oblique edge thereof is less than 40 °.
According to one aspect of the present invention, when the wrapping film of the present invention is used for wrapping, such as cotton rolls, the first portion is positioned at the front end prior to the contact of the cotton rolls, and the second portion, the third portion and the fourth portion are sequentially wound around the cotton rolls during the rolling of the cotton rolls. By providing the first and second portions with no adhesive, adhesion to the cotton is prevented and unpacking is facilitated. The third part and the fourth part are provided with the bonding layers, so that after the second part is completely wound on the cotton roll, the third part is wound on the second part, and the bonding layers are arranged on the third part, so that the third part can be better bonded with the second part, the third part is prevented from being separated, in addition, the bonding layers are arranged on the third part, the friction force between the third part and the second part in the winding process is favorably increased, the third part is favorable for tightly wrapping the cotton roll, and the cotton roll has certain tension on the coating film, and the cotton is prevented from being loose. Set up the adhesive linkage then for realizing sealing after the wrapping film winding is finished on the fourth part, consequently the viscidity of second adhesive linkage is greater than the viscidity of first adhesive linkage, has guaranteed like this that the wrapping film of beating on the cotton roll is more firm in the position of sealing, especially in occasions that dust is more such as field operation, seals the viscidity of position adhesive linkage through improving, and is more favourable to the influence that suppresses the dust for the packing effect is better.
According to one scheme of the invention, the width of the first connecting section is set to be small, so that the packaging film is aligned with the edge of the cotton roll during input, and alignment during subsequent winding of the packaging film is facilitated. And the width of the third connecting section is increased, so that the width of the packaging film is larger than that of the cotton roll, a circle of wrapping edge can be formed at the edge position of the cotton roll, loosening at the boundary position of the cotton roll is avoided, and the edge of the packaged cotton roll is tidy. In addition, the width transition of the winding film is realized in the winding process by arranging the second connecting section, so that the phenomenon that the third part is curled due to the increased width can be effectively avoided.
Drawings
Fig. 1 schematically shows a structural view of a packaging film according to an embodiment of the present invention.
Detailed Description
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 embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In describing embodiments of the present invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship that is based on the orientation or positional relationship shown in the associated drawings, which is for convenience and simplicity of description only, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above-described terms should not be construed as limiting the present invention.
The present invention is described in detail below with reference to the drawings and the specific embodiments, which are not repeated herein, but the embodiments of the present invention are not limited to the following embodiments.
As shown in fig. 1, according to one embodiment of the present invention, a wrapping film of the present invention has an elongated shape including a first portion 11, a second portion 12, a third portion 13, and a fourth portion 14 connected in this order. In this embodiment, the third portion 13 is provided with a first adhesive layer, and the fourth portion 14 is provided with a second adhesive layer on the same side as the third portion 13. In this embodiment, the first adhesive layer may be spread over the third portion 13, i.e. the shape of the first adhesive layer is the same as the shape of the third portion 13. Of course, the first adhesive layer may also be formed by strip-shaped adhesive portions arranged in an array on the third portion 13, and the strip-shaped adhesive portions may be arranged at equal intervals along the length direction or the width direction of the packaging film. Further, the first adhesive layer may be formed of a continuous adhesive portion in a meandering or spiral strip shape provided on the third portion 13. In this embodiment, the second adhesive layer is spread over the fourth portion 14, i.e. the shape of the second adhesive layer is the same as the shape of the fourth portion 14. In the present embodiment, the viscosity of the second adhesive layer is greater than the viscosity of the first adhesive layer.
According to the present invention, when the wrapping film of the present invention is used for wrapping, such as a cotton roll, the first portion 11 is positioned at the front end prior to the contact of the cotton roll, and the second portion, the third portion and the fourth portion are sequentially wound around the cotton roll during the rolling of the cotton roll. By providing the first and second portions 11, 12 with no adhesive, adhesion to the cotton is prevented and unpacking is facilitated. The third part 13 and the fourth part 14 are provided with the bonding layers, so that after the second part is completely wound on the cotton roll, the third part 13 is wound on the second part, and the bonding layers are arranged on the third part 13, so that the third part can be better bonded with the second part, the third part 13 is prevented from being separated, in addition, the bonding layers are arranged on the third part, the friction force between the third part 13 and the second part 12 in the winding process is favorably increased, the cotton roll is favorably and tightly wrapped by the third part, certain tension is provided for the wrapping film of the cotton roll, and the cotton is prevented from being loose. The fourth part 14 is provided with the adhesive layer, so that the sealing after the wrapping film is wrapped is realized, the viscosity of the second adhesive layer is greater than that of the first adhesive layer, the wrapping film on the cotton roll is ensured to be firmer at the sealing position, and particularly in occasions with more dust, such as field operation, the influence on dust suppression is more favorable by improving the viscosity of the adhesive layer at the sealing position, so that the packing effect is better.
According to one embodiment of the invention, the same side of the first portion 11 as the third portion 13 and the fourth portion 14 is provided with a layer of silicone oil. In the present embodiment, the silicone oil layer is made of a substance having no viscosity. The packaging film is in a roll at the initial state, the first part 11 of the packaging film is connected with the fourth part 14 of the previous packaging film, and the fourth part 14 is provided with a high-viscosity bonding layer, so that the two packaging films are separated conveniently, and the first part 11 is provided with an organic silicon oil layer, so that the two packaging films are prevented from being separated difficultly and being torn. Therefore, the silicone oil layer arranged on the first part 11 not only ensures the quality of the packaging film, but also does not affect the viscosity of the fourth part 14, so that the viscosity of the fourth part 14 is higher, and the packaged seal is firmer.
According to one embodiment of the invention, the thickness of the second portion 12 is greater than the thickness of the third portion 13. In this embodiment, in the packing process, second part 12 and cotton roll direct contact and realize the parcel, set up through thickening second part 12, to avoiding carrying to beat the damaged of diolame when diolame or cotton roll surface contains the stereoplasm debris, in addition, set up the thickening of second part 12, like this in the packing process, the diolame can provide bigger binding power to the cotton roll, is favorable to keeping the compaction of cotton roll like this, has guaranteed packing quality. In addition, since the binding force to the cotton roll is mainly provided by the second part 12, and the third part and the fourth part mainly realize the binding effect through the binding layer to prevent the cotton roll from falling off, the thickness of the third part and the fourth part is reduced, and the cost of coating the film is reduced.
According to one embodiment of the invention, the thickness of the first portion 11 is the same as the thickness of the second portion 12 and the thickness of the fourth portion 14 is the same as the thickness of the third portion 13. Through the arrangement, the thickness of the first part is consistent with that of the second part, and the thickness of the third part is consistent with that of the fourth part, so that the processing difficulty of the packaging film is reduced, and the production cost of the packaging film is reduced.
As shown in fig. 1, according to one embodiment of the present invention, the second portion 12 includes: a first connection section 121 for connection with the first part 11, a second connection section 122 for connection with the first connection section 121, and a third connection section 123 for connection with the second connection section 122 and the third part 13, respectively. In the present embodiment, the width of the first connection section 121 is smaller than that of the third connection section 123; the width of the front end of the second connecting section 122 is the same as that of the first connecting section 121, and the width of the rear end thereof is the same as that of the third connecting section 123. In this embodiment, the width of the first connecting section 121 is set to be small, which is beneficial to aligning the envelope with the edge of the cotton roll during input and the alignment during the subsequent winding of the envelope. And the width of the third connecting section 123 is increased, so that the width of the packaging film is larger than that of the cotton roll, and then a circle of edge wrapping is formed at the edge of the cotton roll, which is favorable for avoiding the loosening of the boundary position of the cotton roll, and the edge of the packaged cotton roll is tidy. In addition, the second connecting section 122 is arranged to realize width transition of the winding film in the winding process, so that the occurrence of curling due to the increase of the width of the third part 123 can be effectively avoided.
As shown in fig. 1, according to an embodiment of the present invention, the length of the second connection section 122 is at least one-half of the length of the first connection section 121 in the length direction. In the present embodiment, by setting the length of the second connecting section within the above range, the width change of the second connecting section 122 can be made more gradual, which is more advantageous for further suppressing the occurrence of the curling due to the increase in the width of the third connecting section 123.
As shown in fig. 1, according to an embodiment of the present invention, both sides of the second connecting section 122 in the width direction are straight sides that are obliquely arranged. By providing the side edges of the second connecting section as inclined straight edges, the width variation during winding is uniformly progressive, which is advantageous for suppressing curling. According to another embodiment of the present invention, the two sides of the second connecting section 122 may be provided with curved sides along the width direction.
As shown in fig. 1, according to an embodiment of the present invention, the first portion 11 has the same width as the first connection section 121. The arrangement described above ensures that the first portion 11 and the first connecting section 121 are easily aligned with the cotton curling edge when they are fed. The width of the third portion 13 is the same as the width of the third connecting section 123, so that the third portion 13 can be adhesively covered with the second portion at the cotton curling edge. The width of the fourth portion 14 is the same as the width of the first portion 11. Therefore, the connection of the two coating films is ensured, the fourth part 14 is prevented from being adhered to the rest parts, and the two coating films are easy to separate.
As shown in fig. 1, according to one embodiment of the present invention, one end of the third portion 13 connected to the fourth portion 14 has a fourth connecting segment 131. The width between the connecting positions of the third part 13 and the fourth part 14 can be gradually reduced by arranging the fourth connecting section 131, so that the connecting strength of the connecting positions of the third part 13 and the fourth part 14 is enhanced, in addition, the tilting of the end part of the third part 13 is effectively inhibited, and the packaging effect is ensured. In the present embodiment, the length of the fourth connecting segment 131 is less than or equal to the length of the fourth portion 14 along the length direction. Through the arrangement, the width of the fourth connecting section 131 can be reduced and changed quickly in the packaging process, so that the defect that wrinkles are easily generated when the edge covering is finished is overcome, and the packaging effect is guaranteed. In the present embodiment, two sides of the fourth connecting section 131 in the width direction are straight sides that are obliquely arranged, and the oblique side is inclined at an angle of less than 40 °. By providing the side edge of the fourth connecting section 131 as an inclined straight edge, the width variation during winding is uniformly progressive, which is also advantageous in suppressing curling. According to another embodiment of the present invention, the side edge of the fourth connection segment 131 may also be provided as an arc edge in the width direction.
According to one embodiment of the invention, the connection position of the second portion 12 and the third portion 13 in the thickness direction is configured as a ramp. The arrangement is favorable for the second part 12 to be packaged completely, the third part 13 can be bonded with the packaged part in time, and the second part 12 is effectively prevented from loosening.
The foregoing is merely exemplary of particular aspects of the present invention and devices and structures not specifically described herein are understood to be those of ordinary skill in the art and are intended to be implemented in such conventional ways.
The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A wrapping film, characterized by comprising a first portion (11), a second portion (12), a third portion (13) and a fourth portion (14) connected in sequence;
a first bonding layer is arranged on the third part (13), and a second bonding layer is arranged on the same side of the fourth part (14) and the third part (13);
the second adhesive layer has a higher viscosity than the first adhesive layer.
2. The wrapping film according to claim 1, characterized in that the first portion (11) is provided with a layer of silicone oil on the same side as the third portion (13) and the fourth portion (14).
3. The wrapping film according to claim 2, characterized in that the thickness of the second portion (12) is greater than the thickness of the third portion (13).
4. The packaging bag according to any one of claims 1 to 3, characterised in that the thickness of the first portion (11) is the same as the thickness of the second portion (12);
the thickness of the fourth portion (14) is the same as the thickness of the third portion (13).
5. The encapsulation film according to claim 4, wherein the second portion (12) comprises: -a first connection section (121) for connection with said first portion (11), -a second connection section (122) for connection with said first connection section (121), and-a third connection section (123) for connection with said second connection section (122) and said third portion (13), respectively;
the first connecting section (121) has a smaller width than the third connecting section (123);
the width of the front end of the second connecting section (122) is the same as that of the first connecting section (121), and the width of the rear end of the second connecting section is the same as that of the third connecting section (123).
6. The encapsulation bag according to claim 5, wherein the length of the second connection section (122) is at least half the length of the first connection section (121) in the length direction.
7. The wrapping film according to claim 6, wherein both side edges of the second connecting section (122) in the width direction are straight or arc edges arranged obliquely.
8. The wrapping film according to any one of claims 5 to 7, wherein the first portion (11) has the same width as the first connecting section (121);
the width of the third portion (13) is the same as the width of the third connecting section (123);
the fourth portion (14) has the same width as the first portion (11).
9. The encapsulation according to claim 8, characterized in that the end of the third portion (13) connected to the fourth portion (14) has a fourth connection segment (131);
along the width direction, two side edges of the fourth connecting section (131) are straight edges or arc edges which are obliquely arranged.
10. The packaging bag according to claim 3, wherein, in the width direction, both side edges of the fourth connecting section (131) are straight edges arranged obliquely, and the oblique edges are inclined at an angle of less than 40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911296697.0A CN110844323A (en) | 2019-12-16 | 2019-12-16 | Packaging film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911296697.0A CN110844323A (en) | 2019-12-16 | 2019-12-16 | Packaging film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110844323A true CN110844323A (en) | 2020-02-28 |
Family
ID=69609348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911296697.0A Pending CN110844323A (en) | 2019-12-16 | 2019-12-16 | Packaging film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110844323A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112722574A (en) * | 2021-01-15 | 2021-04-30 | 王超 | Cotton wrapping film |
| CN112793924A (en) * | 2020-12-31 | 2021-05-14 | 江苏优珀斯材料科技有限公司 | Machine-harvested cotton packaging film and packaging method thereof |
| CN112793923A (en) * | 2020-12-31 | 2021-05-14 | 江苏优珀斯材料科技有限公司 | Machine-harvested cotton packaging film roll and packaging method thereof |
| CN113060413A (en) * | 2021-03-19 | 2021-07-02 | 海安鑫福缘农业科技有限公司 | Cross-rolling moisture-proof cotton packing method based on coating film |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112793924A (en) * | 2020-12-31 | 2021-05-14 | 江苏优珀斯材料科技有限公司 | Machine-harvested cotton packaging film and packaging method thereof |
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| CN113060413A (en) * | 2021-03-19 | 2021-07-02 | 海安鑫福缘农业科技有限公司 | Cross-rolling moisture-proof cotton packing method based on coating film |
| CN113060413B (en) * | 2021-03-19 | 2022-07-26 | 海安鑫福缘农业科技有限公司 | Cross-rolling moisture-proof cotton packing method based on coating film |
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