CN112722574B

CN112722574B - Cotton wrapping film

Info

Publication number: CN112722574B
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: 2023-02-28
Anticipated expiration: 2041-01-15
Also published as: CN112722574A

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 roll film

Technical Field

The invention relates to the technical field of packaging materials, in particular to a cotton roll 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: CN 16992062A, 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 layer of separation type section are in the same place.

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 both be 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 release film according to the present invention in an initial state.

FIG. 5 is a schematic diagram of a partial enlarged structure of the release film during 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 packaging stage.

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

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 use 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 in the manufacturing process, the second strong sticky area of the previous packaging section is prevented from being stuck to other parts of the winding device or the packaging section after leaking, 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 in use, the first strong sticky area of the next packaging section is bonded to the outer side, far away from wrapped cotton, of the packaging section, the film rolling device of the previous packaging section identifies the separation label 10 to stop rotating, the film rolling device of the next packaging section is far away from the previous packaging section and is loosened, and the labor intensity of operators is reduced.

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

as shown in fig. 1, 2, 3, 4, 5, 6, and 7, the wrapping section includes a rolled film substrate 1, the rolled film substrate 1 is sequentially provided with a first strong adhesive region, a non-adhesive region, a weak adhesive region, and a second strong adhesive region along a length direction, the release section includes a release film 6, two sides of the release film 6 in a thickness direction are respectively provided with a separation layer 7 and a non-separation layer 8, the second strong adhesive region of the previous wrapping section and the non-separation layer 8 of the release section are bonded together between every two adjacent wrapping sections, the first strong adhesive region of the subsequent wrapping section and the separation layer 7 of the separate section are bonded together separately, or a separation layer is provided on an upper side of the release film 6, the second strong adhesive region of the previous wrapping section and a lower side of the release film 6 are bonded together between every two adjacent wrapping sections, and the first strong adhesive region of the subsequent wrapping section and the separation layer 7 of the separate section are bonded together separately.

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.

If necessary, the first strong adhesive layer 2 and the second strong adhesive layer 5 may be formed by adhering a conventionally known strong adhesive polypropylene non-dry double-sided tape to the roll film base 1, the weak adhesive layer 4 may be formed by applying a conventionally known polyisobutylene resin onto the roll film base 1 by heating, and the non-adhesive layer 3 is the body of the roll film base 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 length direction of the non-separating layer 8 of the release film 6 is greater than the distance in the length direction of the second strong adhesive layer 5 of the previous packaging stage 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 rapidly install on the unwinding machine through the arrangement, the installation is simple, the winding and subsequent winding of the film substrate 1 are also convenient, every two adjacent film substrates 1 and the release film 6 positioned in the middle of the film substrates are connected to form an S shape, and when the wrapping film is wound on the wrapping object, after a front packaging section is separated from a rear packaging section, the first strong adhesive layer 2 is adhered to the outer side of the wrapping object 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.

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: when the cotton picker is used, a finished wound film coiled material is placed in a film storage chamber of a cotton picker, a driver of the cotton picker presses down a packing button after a certain amount of cotton is harvested, the wound film starts to pack the cotton, when a cotton picker sensor identifies a separation label 10, a winding core 9 is braked, 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 film winding base material 1 on the outermost side of a cotton bale to be firmly bonded, so that the final sealing effect is formed.

Claims

1. A cotton wrapping film is characterized by comprising a plurality of wrapping sections, wherein each wrapping section is provided with a first strong sticky area and a second strong sticky area at intervals along the length direction, the second strong sticky area of the previous wrapping section and the first strong sticky area of the next wrapping section are detachably bonded together through a release section, every two adjacent wrapping sections are overlapped and have the length of the release section, 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 convenient to identify;

the packaging section comprises a rolled film base material, the rolled 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, and the release section comprises a release film;

the two sides of the release film in the thickness direction are respectively provided with a separating layer and a non-separating layer, the separating layer and the non-separating layer are not overlapped in the direction vertical to the surface of the release film, the second strong adhesive area of the front packaging section and the non-separating layer of the separating section are bonded together between every two adjacent packaging sections, and the first strong adhesive area of the rear packaging section and the separating layer of the separating section are bonded together in a separable mode;

or a separating layer is arranged on the upper side of the release film, the second strong adhesive area of the front packaging section is bonded with the lower side of the release film between every two adjacent packaging sections, and the first strong adhesive area of the rear packaging section is bonded with the separating layer of the release film in a separable way;

the first strong sticky area, the non-sticky area and the weak sticky area are respectively formed by a first strong sticky layer, a non-sticky layer and a weak sticky layer which are sequentially arranged on the first surface of the rolled film base material along the length direction, the second strong sticky area is formed by a second strong sticky layer arranged on the second surface of the rolled film base material, the first surface of the rolled film base material and the second surface of the rolled film base material are two surfaces of the rolled film base material in the thickness direction, the second surface of the rolled film base material corresponding to the position of the weak sticky layer is fixedly connected with a separation label close to the second strong sticky layer, and a picking information layer is arranged on the separation label;

add man-hour and roll up the strong adhesive linkage of non-separating layer of membrane and the second of rolling up membrane substrate second face and bond together, can avoid the preparation to roll up first strong adhesive linkage and the weak adhesive linkage on the first face of membrane substrate and turn over the book, the second face of rolling up membrane substrate can be covered from the type membrane after the packing separation simultaneously, prevent to bond in other positions of rolling up membrane substrate, the first strong adhesive linkage of the first face of rolling up membrane substrate and the separable bonding of the separating layer from the type membrane are in the same place, can quick separation when the packing, weak adhesive linkage and first layer winding membrane laminating on the cotton are in the same place, it is smooth to prevent the membrane surface, slide when moving.

2. The cotton roll film according to claim 1, wherein the roll film substrate is wide in the middle and narrow in both sides in the longitudinal direction, one end of the weak adhesive layer is adjacent to the second strong adhesive layer, and the other end of the weak adhesive layer extends to the middle of the roll film substrate in the longitudinal direction of the roll film substrate.

3. The cotton rolling film according to claim 2, wherein both side edges of the rolling film substrate are in inclined transition with both side edges of the middle.

4. The cotton roll film according to claim 1, 2 or 3, wherein the distance in the longitudinal direction of the non-separating layer of the release film is greater than the distance in the longitudinal direction of the second strong adhesive layer of the preceding wrapping stage located adjacent thereto.

5. The cotton roll film according to claim 1, 2 or 3, characterized in that it further comprises a core in the shape of a circular sleeve, a plurality of roll film base materials connected end to end are wound outside the core, the first surface of the roll film base material is close to the outer wall of the core, the second surface of the roll film base material is far away from the outer wall of the core, every two adjacent roll film base materials and the release film positioned therebetween 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.

6. The cotton roll film according to claim 4, further comprising a core in the shape of a circular sleeve, wherein a plurality of end-to-end roll film substrates are wound on the outer side of the core, the first surface of each roll film substrate is close to the outer wall of the core, the second surface of each roll film substrate is far away from the outer wall of the core, and every two adjacent roll film substrates and the release film positioned between the two adjacent roll film substrates 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.