CN211711539U

CN211711539U - Packaging film

Info

Publication number: CN211711539U
Application number: CN201922255355.6U
Authority: CN
Inventors: 刘丽娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-10-20
Anticipated expiration: 2029-12-16

Abstract

The utility model 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

Packaging film

Technical Field

The utility model relates to a packaging material especially relates 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.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a packaging film solves the problem that the packaging film loosens easily after the packing is accomplished.

In order to achieve the purpose of the utility model, the utility model provides 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.

According to an aspect of the present invention, the first portion and the third portion and one side that is the same as the fourth portion are provided with a silicone oil layer.

According to an aspect of the invention, the thickness of the second portion is greater than the thickness of the third portion.

According to an 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 an 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 an aspect of the invention, the length of the second connection section is at least half of the length of the first connection section in the length direction.

According to the utility model discloses an aspect, along width direction, the both sides limit of second linkage segment is the straight flange or the arc limit that the slope set up.

According to an aspect of the present invention, the first portion is the same width as the first connection 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 an aspect of the present invention, an 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 the utility model discloses an aspect, along width direction, the straight flange that the both sides limit of fourth linkage segment set up for the slope, and its hypotenuse angle is less than 40.

According to the utility model discloses a scheme is adopting the utility model discloses a when packing the membrane, if the cotton book, the first part is in the front end and contacts earlier than the cotton book to in-process second part, third part and the fourth part that rolls at the cotton book twines on the cotton book in proper order. 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 the utility model discloses a scheme, the width setting less that is favorable to beating the diolame and aligns with the edge of cotton book when inputing with first linkage segment, is favorable to beating adjusting well when the follow-up winding of diolame. 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 diagram 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," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and other terms are used in an orientation or positional relationship shown in the associated drawings for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are not repeated herein, but the present invention is not limited to the following embodiments.

As shown in fig. 1, according to an embodiment of the present invention, the present invention provides a packing film, which is in a long strip shape and includes a first portion 11, a second portion 12, a third portion 13 and a fourth portion 14 connected in sequence. 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 utility model discloses, adopting the utility model discloses a when packing the membrane, like the cotton book, first portion 11 is located the front end and contacts prior to the cotton book to in-process second portion, third part and the fourth branch of rolling are twined on the cotton book in proper order at the cotton book. 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 an embodiment of the invention, the same side of the first part 11 as the third part 13 and the fourth part 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 an 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 an 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 an 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 half of the length of the first connection section 121 along 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, the two sides of the second connecting section 122 are straight edges arranged obliquely along the width direction. 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 can be further provided with arc edges 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 an embodiment of the present invention, an end of the third portion 13 connected to the fourth portion 14 has a fourth connecting section 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, along the width direction, the side of the fourth connecting section 131 can be set as an arc edge.

According to an embodiment of the present invention, the connection position of the second portion 12 and the third portion 13 in the thickness direction forms a slope. 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 embodiments of the present invention and reference should be made to the apparatus and structures herein not described in detail as it is known in the art to practice the same in general equipment and general methods.

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

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 wrapping film according to claim 9, wherein both side edges of the fourth connecting section (131) in the width direction are straight edges arranged obliquely, and the oblique edges thereof are inclined at an angle of less than 40 °.