CN219361955U - High-performance degradable packaging film - Google Patents

Abstract

The utility model discloses a high-performance degradable coating film which comprises a PLA substrate layer, wherein a first PVC degradation layer and a second PVC degradation layer are fixedly arranged on the upper surface and the lower surface of the PLA substrate layer respectively, a cotton sliver layer is embedded between the PLA substrate layer and the first PVC degradation layer, a cementing layer is fixedly arranged on the lower surface of the second PVC degradation layer, a release layer is arranged on the lower surface of the cementing layer, the release layer is in contact with the lower surface of the second PVC degradation layer, and the cementing layer is positioned between the release layer and the second PVC degradation layer. According to the high-performance degradable coating film, when the high-performance degradable coating film is degraded, the degradation mode is upgraded from the outside-to-inside degradation mode to the degradation flow combining from outside to inside and from inside to outside, so that the degradation efficiency of the coating film can be greatly improved, the degradation performance is better, the winding number of the coating film can be reduced during packaging, air bubbles are avoided, the bonding effect is ensured, and the packaging performance is better.

Description

High-performance degradable packaging film

Technical Field

The utility model relates to the technical field of packaging films, in particular to a high-performance degradable packaging film.

Background

Coating film, and can be used as packaging and protecting object. When the traditional packaging film is used for winding a packaged object, the adhesive of the film is used for connecting the object, so that the multiple layers of packaging films which are wound together are bonded together, and the adhesive is not realized through glue, so that the packaging film can be torn off from the packaged object without leaving marks, but multiple layers of packaging films are required to be wound in order to ensure the packaging protection effect on the object, and the consumption of the packaging film is increased, and the pollution is increased; in addition, when the existing packaging film is degraded in the natural environment, the degradation of the packaging film is generally from outside to inside due to the degradation characteristics and environmental factors of the packaging film, namely, the material directly contacted with the environment at the outer side of the packaging film is generally degraded first, the degradation of the outer side material enables the inner side material to be contacted with the environment, and the inner side material is degraded again, so that the degradation speed of the packaging film is slower due to the degradation process. Therefore, we propose a high performance degradable coating film.

Disclosure of Invention

The utility model mainly aims to provide a high-performance degradable coating film which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a high performance degradable is beaten diolame, includes PLA substrate layer, and the upper and lower surface of PLA substrate layer is fixed respectively and is provided with first PVC degradation layer and No. two PVC degradation layers, all inlays between PLA substrate layer and the No. one PVC degradation layer and is equipped with the silver layer between PLA substrate layer and the No. two PVC degradation layers, and the lower fixed surface on No. two PVC degradation layers is provided with the cementing layer, and the lower surface on cementing layer is provided with from the type layer, from the lower surface contact on type layer and No. two PVC degradation layers, and the cementing layer is located from between type layer and No. two PVC degradation layers.

Preferably, the glue layer is including connecting two sets of No. three glue layers of No. two PVC degradation layer lower extreme, be located and be provided with two sets of No. four glue layers between two sets of No. three glue layers, two sets of No. three glue layers and two sets of No. four glue layers all set up along No. two PVC degradation layer width direction intervals, are provided with No. two glue layers between two sets of No. four glue layers, no. two glue layers are provided with a plurality of and set up along No. two PVC degradation layer's length direction intervals, are provided with No. one glue layer between two adjacent No. two glue layers.

Preferably, the second adhesive layer, the third adhesive layer and the fourth adhesive layer are connected with the lower end of the second PVC degradation layer; the glue film No. three and No. four glue films all are provided with a plurality of and all set up along the length direction interval of No. two PVC degradation layers.

Preferably, the release layer comprises release paper sheets, the release paper sheets are bonded with the bonding layer, two release paper strips are integrally arranged at one end of the release paper sheets, which faces the second PVC degradation layer, and are arranged at intervals along the width direction of the release paper sheets, the inner side faces of the two release paper strips are respectively in contact fit with the outer side faces of the two groups of third adhesive layers, and the two release paper strips are in contact fit with the lower end face of the second PVC degradation layer.

Preferably, a plurality of groups of vertically-through parting grooves are formed in the parting paper sheet, and the multicomponent parting grooves are arranged at intervals along the length direction of the parting paper sheet; both sides of each component slot are provided with a split slot; the parting opening is V-shaped, the tip of the parting opening penetrates through the inner side face of the release paper strip, and the large end of the parting opening penetrates through the outer side face of the release paper strip.

Preferably, the slitting groove is provided with a plurality of and is arranged along the width direction interval of the release paper sheet, and the slitting opening penetrates through the upper end and the lower end of the release paper sheet.

Preferably, the upper end of the first PVC degradation layer is fixedly provided with a PP highlight wear-resistant layer.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the PLA substrate layer is used as a base layer for coating, the first PVC degradation layer and the second PVC degradation layer are used as upper and lower layers, cotton sliver layers are respectively embedded between the PLA substrate layer and the first PVC degradation layer and between the PLA substrate layer and the second PVC degradation layer, each cotton sliver layer comprises a plurality of cotton slivers which are arranged at intervals, when the surface part areas of the PLA substrate layer, the first PVC degradation layer and the second PVC degradation layer are degraded until the cotton sliver layer contacts with the natural environment, the cotton sliver layer can absorb moisture in the natural environment and absorb other substances capable of promoting degradation of the PLA substrate layer, the first PVC degradation layer and the second PVC degradation layer in the natural environment under the action of the moisture, so that the water and the substances capable of promoting degradation of the PLA substrate layer, the first PVC degradation layer and the second PVC degradation layer contact with the inner side surfaces of the PLA substrate layer, the first PVC degradation layer and the second PVC degradation layer, and the inner side surfaces of the first PVC degradation layer are degraded, the coating mode is upgraded from outside to inside and degradation mode is combined with the degradation mode from outside to inside to outside, and the coating efficiency is improved greatly, and the coating performance is improved.

2. According to the packaging film, the adhesive bonding layer and the release layer are arranged, so that the packaging film has the use characteristics of an adhesive tape, when an object is packaged, the release layer can be contacted with the object, the packaging film is wound on the surface of the object for two to three circles, then the release layer is torn off and wound for about one circle, in the winding process, the adhesive bonding layer is adhered with the PP highlight wear-resistant layer, then the whole packaging film is cut off, and the PLA substrate layer, the first PVC degradation layer, the second PVC degradation layer, the adhesive bonding layer, the PP highlight wear-resistant layer and the cotton sliver layer are wound on the object, so that the winding circle number of the packaging film can be reduced, the use amount of the packaging film is reduced, and pollution caused by the packaging film is reduced.

3. According to the utility model, the adhesive bonding layer consists of the plurality of first adhesive layers, the plurality of second adhesive layers, the plurality of third adhesive layers and the plurality of fourth adhesive layers, and the adhesive layers are arranged at intervals, so that gas can be discharged in the bonding process of the adhesive bonding layer and the PP highlight wear-resistant layer, bubbles are avoided, the bonding effect is ensured, and the packaging performance is better.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a high performance degradable coating film of the present utility model;

FIG. 2 is an expanded view of a high performance degradable packaging film structure according to the present utility model;

FIG. 3 is a schematic structural view of a bonding layer;

FIG. 4 is a schematic diagram of the structure of a release layer;

FIG. 5 is a schematic view of the structure of a high performance degradable coating film of the present utility model when the release layer is torn.

In the figure: 1. a PLA substrate layer; 2. a first PVC degradation layer; 3. a PVC degradation layer II; 4. a glue layer; 5. a release layer; 6. a PP highlight wear-resistant layer; 7. a sliver layer; 41. a first adhesive layer; 42. a second adhesive layer; 43. a third adhesive layer; 44. a fourth adhesive layer; 51. a release paper sheet; 52. a release paper strip; 53. dividing grooves; 54. and (5) dividing the notch.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in figures 1-5, the high-performance degradable coating film comprises a PLA substrate layer 1, wherein a first PVC degradation layer 2 and a second PVC degradation layer 3 are fixedly arranged on the upper surface and the lower surface of the PLA substrate layer 1 respectively, cotton sliver layers 7 are respectively embedded between the PLA substrate layer 1 and the first PVC degradation layer 2 and between the PLA substrate layer 1 and the second PVC degradation layer 3, an adhesive layer 4 is fixedly arranged on the lower surface of the second PVC degradation layer 3, a release layer 5 is arranged on the lower surface of the adhesive layer 4, the release layer 5 is in contact with the lower surface of the second PVC degradation layer 3, and the adhesive layer 4 is positioned between the release layer 5 and the second PVC degradation layer 3. The upper end of the first PVC degradation layer 2 is fixedly provided with a PP highlight wear-resistant layer 6.

As a further explanation of the above technical scheme, the adhesive layer 4 includes two groups of glue layers 43 connected to the lower end of the second PVC degradation layer 3, two groups of glue layers 44 are disposed between the two groups of glue layers 43, the two groups of glue layers 43 and the two groups of glue layers 44 are all disposed along the width direction of the second PVC degradation layer 3 at intervals, each group of glue layers 43 and each group of glue layers 44 is provided with a plurality of glue layers and all disposed along the length direction of the second PVC degradation layer 3 at intervals, and the inner and outer glue layers 43 and the glue layers 44 are disposed at intervals in a staggered manner so as to leave gaps between the two adjacent glue layers 43, the two adjacent glue layers 44 and the adjacent glue layers 43 and 44, so as to exhaust gas. Be provided with No. two glue films 42 between two sets of No. four glue films 44, no. two glue films 42 are provided with a plurality of and set up along No. two PVC degradation layer 3's length direction intervals, no. two glue films 42 set up along No. two PVC degradation layer 3's width direction, no. two glue films 42 and No. four glue films 44 that are located No. two glue films 42 both sides constitute an I-shaped jointly. A first adhesive layer 41 is arranged between two adjacent second adhesive layers 42, and the first adhesive layer 41 is used as a circle center. The second adhesive layer 42, the third adhesive layer 43 and the fourth adhesive layer 44 are all connected with the lower end of the second PVC degrading layer 3. Through the arrangement, an air passage can be formed, and when the adhesive bonding layer 4 is in adhesive contact with the PP highlight wear-resistant layer 6, air between the second PVC degradation layer 3 and the PP highlight wear-resistant layer 6 can be discharged, so that air bubbles are avoided, and the adhesive bonding effect is ensured.

As a further explanation of the above technical scheme, the release layer 5 comprises a release paper sheet 51, the release paper sheet 51 is adhered to the adhesive layer 4, two release paper strips 52 are integrally arranged on one end of the release paper sheet 51 facing the second PVC degradation layer 3, the two release paper strips 52 are arranged at intervals along the width direction of the release paper sheet 51, the inner side surfaces of the two release paper strips 52 are respectively contacted and matched with the outer side surfaces of the two groups of third adhesive layers 43, the two release paper strips 52 are respectively contacted and matched with the lower end surfaces of the second PVC degradation layer 3, the release layer 5 can be separated from the adhesive layer 4 and the second PVC degradation layer 3, the release layer 5 can be used as a part of packing materials in packing, and also can be separated as waste materials generated in packing, so that the use is convenient. The release paper sheet 51 is provided with a plurality of groups of cutting grooves 53 which are vertically penetrated, and the multi-component cutting grooves 53 are arranged at intervals along the length direction of the release paper sheet 51; the two sides of each group of the cutting grooves 53 are provided with the parting grooves 54, so that the release layer 5 can be torn off at different positions, and the use is convenient; the parting 54 is V-shaped, the tip of the parting 54 penetrates through the inner side surface of the parting strip 52, the large end of the parting 54 penetrates through the outer side surface of the parting strip 52, the parting 54 penetrates through the upper end and the lower end of the parting strip 51, and the parting layer 5 can be conveniently torn through the V-shaped parting 54, so that the parting layer 5 is more labor-saving to tear. The dividing grooves 53 are provided in plurality and are provided at intervals in the width direction of the release paper sheet 51.

It should be noted that, the present utility model is a high performance degradable coating film, through setting up the cementing layer 4 and the release layer 5, make this packaging film possess the operational characteristic of sticky tape, when packaging the object, can make release layer 5 contact with the object, twine packaging film on object surface two to three circles, then, through packaging film twine two to three circles after corresponding cutting opening 54 and cutting groove 53 tear release layer 5, make release layer 5 divide into two, around the winding again, in the winding process, cementing layer 4 glues with PP high gloss wearing layer 6, and with the gradual contact of cementing layer 4 and PP high gloss wearing layer 6, tear release layer 5 gradually, after twining, cut off whole coating film, make PLA substrate layer 1, PVC degradation layer 3 of No. two, cementing layer 4, PP high gloss wearing layer 6, 7 twine on the object, and also keep on the object being twined as the winding in the release layer 5 of initial two to three circles, so can reduce the winding pollution of coating film, and reduce the consumption of coating film that is beaten and is further reduced. After the packing film is packed, the release layer 5 separated from the adhesive layer 4 is cut off and separated, so that the packing film is convenient to pack again.

The utility model is characterized in that the surface partial areas of the PLA substrate layer 1, the first PVC degradation layer 2 and the second PVC degradation layer 3 are firstly contacted and degraded with natural environment when being degraded, the cotton sliver layer 7 is contacted with the natural environment when being degraded to be contacted with the cotton sliver layer 7, the cotton sliver layer 7 can absorb moisture in the natural environment and absorb other substances capable of promoting the degradation of the PLA substrate layer 1, the first PVC degradation layer 2 and the second PVC degradation layer 3 in the natural environment under the action of the moisture, so that the water and the substances capable of promoting the degradation of the PLA substrate layer 1, the first PVC degradation layer 2 and the second PVC degradation layer 3 are contacted with the inner side surfaces of the PLA substrate layer 1, the first PVC degradation layer 2 and the second PVC degradation layer 3, and the inner side surfaces of the PLA substrate layer 1, the first PVC degradation layer 2 and the second PVC degradation layer 3 are also degraded.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (7)

1. A high performance degradable coating film comprising a PLA substrate layer (1), characterized in that: the upper and lower surfaces of PLA substrate layer (1) are fixed respectively and are provided with a PVC degradation layer (2) and a No. two PVC degradation layer (3), all inlay between PLA substrate layer (1) and a No. two PVC degradation layer (2), between PLA substrate layer (1) and No. two PVC degradation layer (3) and be equipped with silver layer (7), the lower fixed surface of No. two PVC degradation layer (3) is provided with cementing layer (4), the lower surface of cementing layer (4) is provided with from type layer (5), from type layer (5) and No. two PVC degradation layer (3)'s lower surface contact, cementing layer (4) are located from between type layer (5) and No. two PVC degradation layer (3).

2. The high performance degradable coating of claim 1, wherein: glue layer (4) are including connecting two sets of glue film No. three (43) of No. two PVC degradation layers (3) lower extreme, are located two sets of No. three glue film No. three (43) between be provided with two sets of No. four glue films (44), two sets of No. three glue film No. three (43) and two sets of No. four glue films (44) all are provided with No. two glue films (42) between No. four glue films (44) along No. two PVC degradation layers (3) width direction interval setting, no. two glue films (42) are provided with a plurality of and are set up along No. two PVC degradation layers (3) length direction interval, adjacent two be provided with No. one glue film (41) between No. two glue films (42).

3. A high performance degradable coating as set forth in claim 2 wherein: the second adhesive layer (42), the third adhesive layer (43) and the fourth adhesive layer (44) are connected with the lower end of the second PVC degradation layer (3); the third adhesive layer (43) and the fourth adhesive layer (44) are all provided with a plurality of adhesive layers and are all arranged at intervals along the length direction of the second PVC degradation layer (3).

4. A high performance degradable coating as set forth in claim 3 wherein: the utility model provides a PVC degradation layer (3) is formed by two from type paper (52) including from type paper (51) in release layer (5), from type paper (51) with glue joint layer (4) glue joint, from type paper (51) is gone up towards the one end integration of No. two PVC degradation layers (3), two from type paper (52) are along the width direction interval setting of from type paper (51), two from the medial surface of type paper (52) respectively with the lateral surface contact cooperation of two sets of No. three glue film (43), two from type paper (52) all with No. two PVC degradation layers (3) lower terminal surface contact cooperation.

5. The high performance degradable coating of claim 4, wherein: a plurality of groups of cutting grooves (53) which are vertically penetrated are formed in the release paper sheet (51), and the multi-component cutting grooves (53) are arranged at intervals along the length direction of the release paper sheet (51); both sides of each group of the cutting grooves (53) are provided with a dividing groove (54); the parting opening (54) is V-shaped, the tip of the parting opening (54) penetrates through the inner side surface of the release paper strip (52), and the large end of the parting opening (54) penetrates through the outer side surface of the release paper strip (52).

6. The high performance degradable coating film of claim 5, wherein: the slitting grooves (53) are formed in a plurality of positions and are arranged at intervals along the width direction of the release paper sheet (51), and the slitting openings (54) penetrate through the upper end and the lower end of the release paper sheet (51).

7. The high performance degradable coating of claim 1, wherein: the upper end of the first PVC degradation layer (2) is fixedly provided with a PP highlight wear-resistant layer (6).