CN112722574A

CN112722574A - Cotton wrapping film

Info

Publication number: CN112722574A
Application number: CN202110052092.8A
Authority: CN
Inventors: 王超
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-04-30
Anticipated expiration: 2041-01-15
Also published as: CN112722574B

Abstract

The invention relates to the technical field of packaging materials, in particular to a cotton wrapping film which comprises a plurality of packaging sections, wherein each packaging section is provided with a first strong adhesive area and a second strong adhesive area at intervals along the length direction. The invention has reasonable and compact structure, the release section can connect a plurality of packaging sections together end to end, the release section completely covers the second strong sticky area of the previous packaging section during manufacture, the second strong sticky area of the previous packaging section is prevented from being stuck to other parts of the winding equipment or the packaging section after leaking, the phenomena of film winding, blocking and the like are avoided, when in use, the next packaging section is separated from the release section before the previous packaging section, the first strong sticky area of the next packaging section is tightly stuck to the outer side of the packaging section far away from the wrapped cotton, the film winding equipment of the previous packaging section recognizes the separation label to stop rotating, the film winding equipment of the next packaging section is far away from and loosened relative to the previous packaging section, the labor intensity of operators is reduced, and the invention has the characteristics of safety, labor saving, simplicity, convenience and high efficiency.

Description

Cotton wrapping film

Technical Field

The invention relates to the technical field of packaging materials, in particular to a cotton wrapping film.

Background

The polyethylene winding film is a winding film with good toughness, has strong tear resistance, is not easy to damage and damp, and is widely suitable for the integral assembly packaging of various products. The publication number is: CN1692062A, name: a packaging material with Z-shaped locking system and method for making and using this packaging material, Z-shaped locking system need cut off two sections of unit packaging film junction, stick strong adhesive and release film separately two sections of unit packaging film end, stick strong adhesive and release film together finally, because the technological process is tedious and easy to misplace in the course of sticking together, pull the strong adhesive from releasing the film and make it leak easily in the course of rolling, the strong adhesive after leaking will stick to and beat the membrane on the upper layer, will appear twining the membrane, phenomenon such as blocking, etc. while using. The existing winding film is mostly prepared from low-density polyethylene through a tape casting or film blowing process, so that scattered small parts cannot be integrated, and the product is loosened and separated in adverse environments. Meanwhile, when the coiled material is manufactured, two adjacent polyethylene winding film coiled materials are longer, and the tail part of the coiled material needs to be manually cut off and attached after the coiled material is fixedly bound, so that the manual labor intensity is increased.

Disclosure of Invention

The invention provides a cotton wrapping film, overcomes the defects of the prior art, and can effectively solve the problems that the existing wrapping film is complex to manufacture, is easy to wrap and clamp in the using process and is inconvenient to trace and inquire cotton information.

The technical scheme of the invention is realized by the following measures: the utility model provides a membrane is rolled up to cotton package, including a plurality of packing section, every packing section all is equipped with first strong viscidity district and the strong viscidity district of second along the length direction interval, between every two adjacent packing sections, all bond together through leaving type section separable bonding between the strong viscidity district of second of preceding packing section and the first strong viscidity district of back packing section, and, the strong viscidity district of second of preceding packing section and the bonding strength who leaves between the type section are greater than the first strong viscidity district of back packing section and leave the bonding strength between the type section, all be equipped with the separation label of being convenient for discernment on every packing section.

The following is further optimization or/and improvement of the technical scheme of the invention:

above-mentioned packing section can be including rolling up the membrane substrate, it is equipped with first strong viscidity district in proper order to roll up the membrane substrate, non-viscidity district, weak viscidity district and the strong viscidity district of second, it is including from the type membrane to leave the type section, it is equipped with separation layer and non-separation layer respectively to leave the type membrane in the ascending two sides of thickness direction, between every two adjacent packing sections, the strong viscidity district of second of preceding packing section and the non-separation layer of separation type section bond together, the first strong viscidity district of back packing section and the separable bonding of separation layer of separation type section are in the same place, perhaps be equipped with the separation layer from the type membrane upside, between every two adjacent packing sections, the strong viscidity district of second of preceding packing section bonds together from the type membrane downside, the first strong viscidity district of back packing section and the separable bonding of separation.

The first strong sticky area, the non-sticky area and the weak sticky area can be formed by a strong sticky layer, a non-sticky layer and a weak sticky layer which are sequentially arranged on the first surface of the film substrate along the length direction, the second strong sticky area is formed by a strong sticky layer on the second surface of the film substrate, and the first surface of the film substrate and the second surface of the film substrate are two surfaces of the film substrate in the thickness direction.

The second surface of the film rolling substrate corresponding to the position of the weak adhesive layer can be fixedly connected with a separation label close to the second strong adhesive layer, and the separation label is provided with a picking information layer.

The film rolling substrate can be wide in the middle and narrow in two sides in the length direction, one end of the weak adhesive layer is close to the second strong adhesive layer, and the other end of the weak adhesive layer extends to the middle of the film rolling substrate along the length direction of the film rolling substrate.

The two side edges of the two sides of the rolled film substrate can be in inclined transition with the two side edges of the middle.

The distance between the non-separation layer of the release film and the length direction is larger than that between the second strong adhesive layer of the previous packaging section adjacent to the non-separation layer of the release film and the length direction.

The above-mentioned core that still can include the circle cover shape twines in rolling up the core outside by a plurality of end to end' S book membrane substrate, and the first face of book membrane substrate is close to a roll core outer wall, rolls up a core outer wall is kept away from to membrane substrate second face, and every two adjacent book membrane substrates and lie in its centre from type membrane connection formation "S" type.

The material of the roll film substrate and the material of the release film can be both flame-retardant materials.

The invention has reasonable and compact structure, the release section can connect a plurality of packaging sections together end to end, the release section completely covers the second strong sticky area of the previous packaging section during manufacture, the second strong sticky area of the previous packaging section is prevented from being stuck to other parts of the winding equipment or the packaging section after leaking, the phenomena of film winding, blocking and the like are avoided, when in use, the next packaging section is separated from the release section before the previous packaging section, the first strong sticky area of the next packaging section is tightly stuck to the outer side of the packaging section far away from the wrapped cotton, the film winding equipment of the previous packaging section recognizes the separation label to stop rotating, the film winding equipment of the next packaging section is far away from and loosened relative to the previous packaging section, the labor intensity of operators is reduced, and the invention has the characteristics of safety, labor saving, simplicity, convenience and high efficiency.

Drawings

Fig. 1 is a schematic front view of the present invention.

FIG. 2 is a schematic bottom view of the rolled film substrate of the present invention when unrolled.

Fig. 3 is a schematic top view of fig. 2.

FIG. 4 is a schematic view of a partially enlarged release film of the present invention in an initial state.

FIG. 5 is a schematic diagram of a partial enlarged structure of the release film in the braking of the roll core.

FIG. 6 is a schematic view of a partially enlarged structure of the release film of the present invention just after separation from a subsequent package section.

FIG. 7 is a schematic view of a partially enlarged structure of the release film of the present invention after separation from a subsequent package section.

The codes in the figures are respectively: 1 is a roll film substrate, 2 is a first strong adhesive layer, 3 is a non-adhesive layer, 4 is a weak adhesive layer, 5 is a second strong adhesive layer, 6 is a release film, 7 is a separation layer, 8 is a non-separation layer, 9 is a roll core, and 10 is a separation label.

Detailed Description

The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.

In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.

The invention is further described with reference to the following examples and figures:

as shown in the accompanying

drawings

1, 2, 3, 4, 5, 6 and 7, the cotton wrapping film comprises a plurality of wrapping sections, each wrapping section is provided with a first strong sticky area and a second strong sticky area at intervals along the length direction, between every two adjacent wrapping sections, the second strong sticky area of the previous wrapping section and the first strong sticky area of the next wrapping section are respectively bonded together in a separable way through a release section, moreover, the bonding strength between the second strong sticky area of the previous wrapping section and the release section is greater than that between the first strong sticky area of the next wrapping section and the release section, and each wrapping section is provided with a separation label 10 convenient to identify.

The breakaway tag 10 can be any known in the art, such as an RFID tag, as desired. In the using process, the separating section is arranged, the packaging sections can be connected together end to end, the separating section completely covers the second strong sticky area of the previous packaging section during manufacturing, the second strong sticky area of the previous packaging section is prevented from being stuck to other parts of the winding equipment or the packaging section after leaking, the phenomena of film winding, blocking and the like are avoided, the bonding strength between the second strong sticky area of the previous packaging section and the separating section is larger than the bonding strength between the first strong sticky area of the next packaging section and the separating section, the next packaging section is separated from the separating section before the previous packaging section during use, the first strong sticky area of the next packaging section is bonded to the outer side of the packaging section, which is far away from wrapped cotton, the film rolling equipment of the previous packaging section identifies the separation label 10 to stop rotating, the film rolling equipment of the next packaging section is far away from and loosens relative to the previous packaging section, and the labor intensity of operators is reduced, the invention has the characteristics of reasonable and compact structure, convenient use, safety, labor saving, simplicity, convenience and high efficiency.

The cotton rolling film can be further optimized or/and improved according to actual needs:

as shown in the attached

drawings

1, 2, 3, 4, 5, 6 and 7, the packaging section comprises a roll film substrate 1, the roll film substrate 1 is sequentially provided with a first strong sticky area, a non-sticky area, a weak sticky area and a second strong sticky area along the length direction, the release section comprises a release film 6, two sides of the release film 6 in the thickness direction are respectively provided with a separation layer 7 and a non-separation layer 8, between every two adjacent packaging sections, the second strong sticky area of the previous packaging section is bonded with the non-separation layer 8 of the previous packaging section, the first strong sticky area of the next packaging section is bonded with the separation layer 7 of the separate section in a separable way, or a separating layer is arranged on the upper side of the release film 6, between every two adjacent packaging sections, the second strong adhesive area of the front packaging section is bonded with the lower side of the release film 6, and the first strong adhesive area of the rear packaging section is bonded with the separating layer 7 of the release section in a separable way.

According to the requirement, the separation layer 7 can be formed by a silicone oil layer coated on the release film 6 or a separation paper of double-sided adhesive tape bonded on the release film 6, and in the invention, the separation layer 8 is a release film 6 body. In the use, through such setting, be convenient for with two adjacent packing section separable bonds together to be convenient for adjust preceding packing section and from the bonding strength between the type section and back packing section and from the bonding strength between the type section, reduce the processing degree of difficulty and cost of manufacture.

As shown in fig. 1, 2, 3, 4, 5, 6, and 7, the first strong adhesion area, the non-adhesion area, and the weak adhesion area are respectively formed by a first strong adhesion layer 2, a non-adhesion layer 3, and a weak adhesion layer 4 sequentially disposed on the first surface of the roll film substrate 1 along the length direction, the second strong adhesion area is formed by a second strong adhesion layer 5 disposed on the second surface of the roll film substrate 1, and the first surface of the roll film substrate 1 and the second surface of the roll film substrate 1 are both surfaces of the roll film substrate 1 in the thickness direction.

According to requirements, the first strong adhesive layer 2 and the second strong adhesive layer 5 can be formed by adhering the conventional well-known strong adhesive polypropylene non-dry double-sided adhesive tape on the roll film substrate 1, the weak adhesive layer 4 can be formed by coating the conventional well-known polyisobutylene resin on the roll film substrate 1 by heating, and the non-adhesive layer 3 is the body of the roll film substrate 1. In the use, through such setting, be convenient for make the packing section, add man-hour and bond together with the strong adhesive linkage 5 of second of 1 second faces of roll membrane substrate from the non-separation layer 8 of type membrane 6, can avoid making first strong adhesive linkage 2 and the weak adhesive linkage 4 of roll on the first face of roll membrane substrate 1 and turn over, the second face of simultaneously roll membrane substrate 1 can be covered by from type membrane 6 after the packing separation, prevent to bond in other positions of roll membrane substrate 1, the first strong adhesive linkage 2 of the first face of roll membrane substrate 1 and the separable bonding of separation layer 7 from type membrane 6 are in the same place, can the snap-off when the packing, weak adhesive linkage 4 is in the same place with the membrane laminating of first layer winding on the cotton, prevent that the membrane surface is smooth, slide when carrying.

As shown in fig. 3, a separation label 10 adjacent to the second strong adhesive layer 5 is fixedly connected to the second side of the roll film substrate 1 corresponding to the position of the weak adhesive layer 4, and a picking information layer is arranged on the separation label 10.

The separation tag 10 can store the source information such as the number of cotton picking time and place in the interior thereof according to the need by the prior art. In the use, when automatic packaging machine discerned separation label 10, the machine of unreeling stops rotatoryly, the parcel continues to rotate, will laminate in advance together pull open through the pulling force from type membrane 6 and roll up membrane substrate 1, automatic laminating is on the outer roll membrane substrate 1 of parcel, the weak adhesion coating 4 of packing section is in the same place with roll membrane substrate 1 laminating, prevent to slide the loose package phenomenon that leads to the fact between transportation in membrane and the membrane, pick the information layer through setting up, make things convenient for the inquiry of traceing back of information in the future.

As shown in fig. 1, 2 and 3, the roll film substrate 1 has a wide middle part and two narrow sides in the length direction, one end of the weak adhesion layer 4 is close to the second strong adhesion layer 5, and the other end of the weak adhesion layer 4 extends to the middle part of the roll film substrate 1 along the length direction of the roll film substrate 1.

The other end of the weak adhesion layer 4 extends to the middle of the film winding substrate 1 along the length direction of the film winding substrate 1 during the use process, so that the loosening and separation of the film winding substrate under the adverse environment can be prevented during the transportation and use process of the film winding substrate.

As shown in fig. 1, 2 and 3, two side edges of two sides and two side edges of the middle of the roll film substrate 1 are in inclined transition.

In the using process, through the arrangement, the weak-viscosity area is convenient to arrange, and the glue layer is convenient to coat on the roll film substrate 1 in the weak-viscosity area.

As shown in fig. 4, 5, 6 and 7, the distance in the longitudinal direction of the non-separating layer 8 of the release film 6 is greater than the distance in the longitudinal direction of the second strong adhesive layer 5 of the preceding package stage located adjacent thereto.

The projection of the second strong adhesive layer 5 is located entirely within the non-separating layer 8 of the release film 6, as desired. In the use, through such setting, when winding roll membrane substrate 1, can prevent that the preparation error of the strong viscous layer 5 of second from making the strong viscous layer 5 of second and roll membrane substrate 1 or roll up membrane equipment bonding together, can reduce the machining precision, improve the reliability of rolling up the membrane in-process, after preceding packing section and back packing section separation, can cover the strong viscous layer 5 of second from type membrane 6 simultaneously, avoid appearing twining the membrane, phenomenon such as block.

As shown in the attached figure 1, the film winding device also comprises a sleeve-shaped winding core 9, wherein a plurality of end-to-end winding film base materials 1 are wound outside the winding core 9, the first surface of each winding film base material 1 is close to the outer wall of the winding core 9, the second surface of each winding film base material 1 is far away from the outer wall of the winding core 9, and every two adjacent winding film base materials 1 and the release film 6 positioned between the two winding film base materials are connected to form an S shape.

In the using process, the film winding machine is convenient to install on the unwinding machine quickly, installation is simple, winding and subsequent winding of wrapping objects of the film winding base materials 1 are also convenient, every two adjacent film winding base materials 1 and the release film 6 positioned in the middle of the film winding base materials are connected to form an S shape, and when the wrapping objects are wound on the film winding machine, after the front wrapping section is separated from the rear wrapping section, the first strong adhesive layer 2 is adhered to the outer side of the wrapping objects through the guide wheel.

As shown in fig. 1, 2, 3, 4, 5, 6 and 7, the material of the roll film substrate 1 and the material of the release film 6 are both flame retardant materials.

In the use process, through the arrangement, other cotton rolls can be prevented from being ignited after a single cotton roll catches fire, and potential safety hazards are reduced.

The technical characteristics form an embodiment of the invention, which has strong adaptability and implementation effect, and unnecessary technical characteristics can be increased or decreased according to actual needs to meet the requirements of different situations.

The preparation process of the invention comprises the following steps: firstly, adding a prepared material into a feeding hopper of a three-layer co-extrusion film blowing machine for mixing, controlling the heating temperature and the feeding speed, and starting film blowing; the method comprises the steps of respectively bonding a strong-viscosity double-faced adhesive tape and a weak-viscosity adhesive tape on a first strong-viscosity area and a weak-viscosity area of a first surface of a roll film substrate 1, cutting the edge of the roll film substrate 1 at a specified position by using a cutter to form a narrowed edge, attaching a separation label 10 to a second surface of the roll film substrate 1, attaching a release film 6 and the strong-viscosity double-faced adhesive tape to the second surface of the roll film substrate 1, and attaching the release film 6 and release paper of the strong-viscosity double-faced adhesive tape together by using a folding device.

The use process of the invention is as follows: during operation, finished winding film coiled materials which are wound are placed in a film storage chamber of a cotton picker, when a certain amount of cotton is picked, a driver of the cotton picker presses down a packing button, the winding film starts to pack the cotton, when a cotton picker sensor identifies a separation label 10, a winding core 9 brakes, the cotton in a cotton storage box continues to rotate, a separation film 6 is separated from a first strong adhesive layer 2, and finally the first strong adhesive layer 2 is bonded on a winding film base material 1 on the outermost side of the cotton bale to enable the bonding to be firm, so that the final sealing effect is formed.

Claims

1. The utility model provides a membrane is rolled up to cotton package, its characterized in that includes a plurality of packing section, every packing section all is equipped with first strong viscidity district and the strong viscidity district of second along the length direction interval, between every two adjacent packing sections, all bond together through leaving type section separable bonding between the strong viscidity district of second of preceding packing section and the first strong viscidity district of back packing section, and the second strong viscidity district of preceding packing section and the bonding strength who leaves between the type section are greater than the first strong viscidity district of back packing section and leave the bonding strength between the type section, all be equipped with the separation label of being convenient for discernment on every packing section.

2. The cotton roll film according to claim 1, wherein the wrapping section comprises a roll film base material, the roll film base material is sequentially provided with a first strong sticky area, a non-sticky area, a weak sticky area and a second strong sticky area along the length direction, the release section comprises a release film, two sides of the release film in the thickness direction are respectively provided with a separation layer and a non-separation layer, between every two adjacent wrapping sections, the second strong sticky area of the previous wrapping section and the non-separation layer of the release section are bonded together, the first strong sticky area of the later wrapping section and the separation layer of the release section are bonded together in a separable mode, or the upper side of the release film is provided with a separation layer, between every two adjacent wrapping sections, the second strong sticky area of the previous wrapping section and the lower side of the release film are bonded together, and the first strong sticky area of the later wrapping section and the separation layer of the release section are bonded together in a separable mode.

3. The cotton wrapping film according to claim 2, wherein the first strongly adhesive region, the non-adhesive region and the weakly adhesive region are respectively formed by a first strongly adhesive layer, a non-adhesive layer and a weakly adhesive layer which are sequentially provided on a first side of the film base material along a length direction, the second strongly adhesive region is formed by a second strongly adhesive layer which is provided on a second side of the film base material, and the first side of the film base material and the second side of the film base material are both sides of the film base material in a thickness direction.

4. The cotton rolling film according to claim 3, wherein a separation label is fixedly attached to the second side of the rolling film substrate corresponding to the weak adhesive layer and adjacent to the second strong adhesive layer, and the separation label has a picking information layer thereon.

5. The cotton wrapping film according to claim 3 or 4, wherein the base material of the wrapping film has a wide middle portion and two narrow sides in the longitudinal direction, one end of the weak adhesion layer is adjacent to the second strong adhesion layer, and the other end of the weak adhesion layer extends to the middle portion of the base material of the wrapping film along the longitudinal direction of the base material of the wrapping film.

6. The automatic cotton rolling film as claimed in claim 5, wherein both side edges of the rolling film substrate are in inclined transition with both side edges of the middle.

7. The cotton rolling film according to claim 3, 4 or 6, wherein the distance in the length direction of the non-separating layer of the release film is larger than the distance in the length direction of the second strong adhesive layer of the previous wrapping section adjacent thereto.

8. The cotton rolling film according to claim 5, wherein the distance in the length direction of the non-separating layer of the release film is larger than the distance in the length direction of the second strong adhesive layer of the previous wrapping section adjacent thereto.

9. The automatic cotton rolling film according to claim 3, 4, 6 or 8, characterized in that the automatic cotton rolling film further comprises a sleeve-shaped roll core, a plurality of end-to-end rolling film base materials are wound outside the roll core, a first surface of the rolling film base material is close to the outer wall of the roll core, a second surface of the rolling film base material is far away from the outer wall of the roll core, every two adjacent rolling film base materials and the release film positioned between the two adjacent rolling film base materials are connected to form an S shape; or/and the material of the roll film substrate and the material of the release film are both flame-retardant materials.

10. The automatic cotton rolling film according to claim 5, characterized by further comprising a sleeve-shaped roll core, wherein a plurality of end-to-end roll film base materials are wound outside the roll core, a first surface of the roll film base material is close to the outer wall of the roll core, a second surface of the roll film base material is far away from the outer wall of the roll core, and every two adjacent roll film base materials and the release film positioned between the two adjacent roll film base materials are connected to form an S shape; or/and the material of the roll film substrate and the material of the release film are both flame-retardant materials.