CN209756303U

CN209756303U - Novel polyester film

Info

Publication number: CN209756303U
Application number: CN201920256825.8U
Authority: CN
Inventors: 陈磊; 洪锭新; 马茜茜
Original assignee: Xiamen Ocean Nanfang Special Photoelectric Material Co Ltd
Current assignee: Xiamen Ocean Nanfang Special Photoelectric Material Co Ltd
Priority date: 2019-02-28
Filing date: 2019-02-28
Publication date: 2019-12-10
Anticipated expiration: 2029-02-28

Abstract

The utility model provides a novel polyester film, by five layer structure constitutions, be corona layer respectively, functional polyester film layer down, the foaming material layer, go up functional polyester film layer, the enhancement printing layer, functional polyester film layer and last functional polyester film layer are adding functional additive in the polyester respectively down and constitute, functional polyester film layer down, in functional polyester film layer and the foaming material layer, by supreme functional polyester film layer down of being respectively, the foaming material layer, go up functional polyester film layer, the coating of enhancement printing layer is on functional polyester film layer upper surface, the corona layer is located the lower surface of functional polyester film layer down, the finished product of making is the bar. This is novel to have flexibility and cushioning property, can play packaging material and by flexible laminating and cushioning effect in packing product top layer, can both play good laminating effect with cambered surface, the curved surface on product part surface, can guarantee to compress tightly the effect between waterproof sticky tape and the part, and shock-absorbing capacity is good, can form the protectiveness to the product.

Description

Novel polyester film

Technical Field

The utility model relates to an auxiliary field of using such as packaging industry, especially a novel polyester film.

Background

In the packaging and chemical material industry, the Biaxially Oriented Polyester (BOPET) film is widely applied, has the characteristics of no color, no smell, no toxicity, high tensile strength and toughness, and can play a good role in protecting waterproof, anti-tearing and the like by adhering the polyester film on a packaging material (such as a packaging ribbon) after being coated with glue during packaging. However, the existing polyester film has the disadvantages of high density and heavy weight due to the limited structure, and does not have the functions of flexible bonding and buffering with the packaged material, so that the packaging material and the packaged part are damaged due to the lack of the buffering function (particularly for the product packaging with fragile surface, the packaging material is not flexibly bonded with the packaged part, and the surface of the product is damaged when the packaging material is bonded with the product as much as possible).

In the field of label products, labels made of PET materials and labels made of polypropylene materials are widely applied. In practical application, because the PET (plastic) label has rigidity, when the PET label is installed on some products with cambered surfaces and curved surfaces, the PET label is not soft enough and is easy to warp, so that the practical use is influenced; the label made of polypropylene material has the disadvantage of no high temperature resistance, so the application is limited. The existing waterproof adhesive tape does not have soft elasticity due to the structure, is not easy to compress when being attached to a product, has poor buffering performance, and cannot form effective protection to the product.

SUMMERY OF THE UTILITY MODEL

In order to overcome current polyester film because of the structure limit, can't play flexible laminating and cushioning effect when being applied to packaging material, in the label of PET material label and polypropylene material is used, stick up the limit easily and can not resist high temperature, and waterproof sticky tape does not have the compliance, drawback that buffer performance is poor, the utility model provides a five layer structure has, the finished product that obtains by processing has the compliance, and buffer performance is good, when being applied to packaging material, can play and by the effect of flexible laminating and buffering between the packaging material, to the good protection effect of product formation, when being applied to the label, with product part cambered surface, the curved surface can both play good laminating effect, when being applied to waterproof sticky tape, can guarantee and compress tightly the effect between the part, buffer performance is good, can form a novel polyester film of protectiveness to the product.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a novel polyester film, its characterized in that comprises five layer structures, be respectively corona layer, lower functional polyester film layer, the foaming material layer, go up functional polyester film layer, the enhancement printing layer, lower functional polyester film layer and last functional polyester film layer are respectively that functional additive adds in the polyester and constitute, in lower functional polyester film layer, go up functional polyester film layer and the foaming material layer, by lower supreme functional polyester film layer, the foaming material layer, go up functional polyester film layer respectively, the coating of enhancement printing layer is on functional polyester film layer upper surface, corona layer is located the lower surface of functional polyester film layer down, the finished product of making is the bar.

The foaming material layer comprises an organic foaming material and an inorganic foaming material, the organic foaming material is one or two or three of TPX (polymer of 4-methylpentene), polystyrene and polypropylene, and the inorganic material is one or two or three of silicon dioxide, titanium dioxide and calcium carbonate; the addition proportion of the foaming material layer is 0.1-20% of the total amount of the lower functional polyester film layer, the upper functional polyester film layer and the foaming material layer.

The foaming material layer can also be added into a lower functional polyester film layer, an upper functional polyester film layer and a foaming material layer corner reclaimed material produced in the production process according to the requirement.

The functional additives respectively added into the lower functional polyester film layer and the upper functional polyester film layer can be one or the mixture of two or three materials of silicon dioxide, titanium dioxide and calcium carbonate.

The particle sizes of the functional inorganic material additives, namely silicon dioxide, titanium dioxide and calcium carbonate, are 0.1-10 mu m, different particle sizes can be adopted for mixing, and the adding proportion is 0.1-20% of the total amount of the lower functional polyester film layer and the upper functional polyester film layer.

The reinforced printing layer material is one of CO-PET, polyurethane and acrylic acid.

The corona layer is obtained by treating a lower functional polyester film layer by ionization production equipment in production.

In the production, the low-density finished product with the density of 0.8-1.2 (g/cm3) can be produced by adjusting different proportions of the organic foaming material and the inorganic foaming material of the foaming material layer and changing the stretching production process.

The utility model has the advantages that: this is novel has increased expanded material layer etc. on current polyester film basis, and the finished product that makes has flexibility and cushioning nature. When the flexible buffer is applied to a packaging material, the flexible attaching and buffering effects of the packaging material and the surface layer of a packaged product can be achieved, and a good protection effect is formed on the product. When the adhesive tape is applied to a label, the adhesive tape has flexibility, and can have a good laminating effect with the cambered surface and the curved surface of the surface of a product part, so that the prepared label has a better effect. When being applied to the waterproof adhesive tape, the waterproof adhesive tape can ensure the compression effect between the waterproof adhesive tape and the component, has good buffering performance and can protect the product. This novel lower functional polyester film layer, go up functional polyester film layer, foaming material layer can also add the production process, and the lower functional polyester film layer of production, go up functional polyester film layer, foaming material layer corner reclaimed materials have accomplished resource effective utilization. Based on the above, so this novel application prospect that has.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

As shown in fig. 1, a novel polyester film comprises five layers, namely a corona layer 1, a lower functional polyester film layer 2, a foaming material layer 3, an upper functional polyester film layer 4 and an enhanced printing layer 5, wherein the lower functional polyester film layer 1 and the upper functional polyester film layer 2 are respectively formed by adding functional additives into polyester, the lower functional polyester film layer 1, the upper functional polyester film layer 2 and the foaming material layer 3 are three layers, the three layers are manufactured by adopting a production equipment extruder co-extrusion mode, the lower functional polyester film layer 1, the foaming material layer 2 and the upper functional polyester film layer 3 are respectively formed from bottom to top, the enhanced printing layer 4 is coated on the upper surface of the upper functional polyester film layer 3, the corona layer 1 is positioned on the lower surface of the lower functional polyester film layer 2, and the manufactured finished product is in a strip shape. The lower functional polyester film layer 1, the upper functional polyester film layer 2 and the foaming material layer 3 are produced in a co-extrusion mode through an extruder of production equipment, and the extruded upper and lower polyester film layers containing the foaming material layer 3 can achieve the matte/white appearance effect and the like.

³As shown in fig. 1, the foaming material layer 3 includes an organic foaming material and an inorganic foaming material, the organic foaming material is one or two or three of TPX (4-methylpentene polymer), polystyrene and polypropylene (in this embodiment, methylpentene polymer), the inorganic material is one or two or three of silica, titanium dioxide and calcium carbonate (in this embodiment, silica and titanium dioxide are 10% to 90% in each ratio), the foaming material layer 3 is added with a lower functional polyester film layer 2, an upper functional polyester film layer 4 and 0.1 to 20% of the total amount of the foaming material layer 3 (in this embodiment, 15% of the organic and inorganic foaming materials are 50% in each case), the foaming material layer 3 is added with a special organic and inorganic foaming material, the raw materials of the lower functional polyester film layer 2 and the upper functional polyester film layer 4 are separated during the bidirectional stretching process of the production equipment, and the porous structure is formed, the film density is reduced, the soft and buffering effect is achieved, the foaming material layer 3 can be added into the production process according to the requirement, the produced lower functional polyester film layer 2, the upper functional polyester film layer 4, the upper functional polyester film layer 2, the upper functional polyester film layer is prepared by mixing, the corona wire rod 2, the wire rod 2 is prepared by using a high pressure wire rod 2, the corona wire rod 2, the wire rod 2 is prepared by the wire rod 2, the wire rod 2 is prepared by the wire rod 2, the wire rod 2 is prepared by the wire rod 2, the wire rod prepared by the method, the method of the.

As shown in figure 1, this novel has increased expanded material layer etc. on current polyester film basis, and expanded material layer 3 is located functional polyester film layer 2 down, goes up between functional polyester film layer 4, because expanded material layer 3 is soft, plasticity is good, light in volume for the finished product that wholly makes has flexibility and cushioning nature. This novel when being applied to packaging material, with sticky the cladding in packaging material (for example packing ribbon) inboard, can play packaging material and by the effect of the flexible laminating in packing product top layer and buffering after the packing, form good protection effect to the product. This is novel when being applied to label preparation, because self has flexibility, can both play good laminating effect with product part cambered surface, curved surface, and the label effect of making is better. When being applied to waterproof adhesive tape, this novel laminating is inboard at waterproof adhesive tape, and waterproof adhesive tape bundles and has good the back, can guarantee to compress tightly the effect between waterproof adhesive tape and the part, and buffer performance is good, can form the protectiveness to the product. This novel lower functional polyester film layer 2, go up functional polyester film layer 4, foaming material layer 3 can also adopt to add the production process, and the lower functional polyester film layer 2 of production, go up functional polyester film layer 4, 3 corner reclaimed materials in the foaming material layer have accomplished the effective utilization of resource.

The basic principles and essential features of the invention and the advantages of the invention have been shown and described above, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but rather can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a novel polyester film, its characterized in that comprises five layer structures, is corona layer, lower functional polyester film layer, foaming material layer, goes up functional polyester film layer, enhancement printing layer respectively, in lower functional polyester film layer, go up functional polyester film layer and the foaming material layer, by lower supreme functional polyester film layer down, foaming material layer, go up functional polyester film layer down respectively, the coating of enhancement printing layer is on upper functional polyester film layer upper surface, corona layer is located the lower surface of functional polyester film layer down, the finished product of making is the bar.

2. The novel polyester film as claimed in claim 1, wherein the foaming material layer comprises an organic foaming material and an inorganic foaming material, the organic foaming material is one or two or three of TPX, polystyrene and polypropylene, and the inorganic material is one or two or three of silica, titanium dioxide and calcium carbonate; the addition proportion of the foaming material layer is 0.1-20% of the total amount of the lower functional polyester film layer, the upper functional polyester film layer and the foaming material layer.

3. The novel polyester film as claimed in claim 1, wherein the foam layer is further added to the lower functional polyester film layer, the upper functional polyester film layer and the scrap recycled material of the foam layer produced in the production process as required.

4. The novel polyester film as claimed in claim 1, wherein the functional additives added to the lower functional polyester film layer and the upper functional polyester film layer are one or two or three of silica, titanium dioxide and calcium carbonate.

5. The novel polyester film as claimed in claim 4, wherein the functional inorganic material additives of silica, titania and calcium carbonate have a particle size of 0.1-10 μm, and can be blended with different particle sizes, and the addition ratio is 0.1-20% of the total amount of the lower functional polyester film layer and the upper functional polyester film layer.

6. The polyester film according to claim 1, wherein the material of the reinforcing printing layer is one of CO-PET, polyurethane and acrylic.

7. The novel polyester film as claimed in claim 1, wherein the corona layer is obtained by treating the lower functional polyester film layer with an ionization production device during the production.

8. The novel polyester film as claimed in claim 1, wherein the low density product of 0.8-1.2 g/cm ³ is produced by adjusting the ratio of the organic and inorganic foaming materials in the foaming material layer and changing the stretching process.