CN108556430A - Pearlescent film capable of displaying various colors - Google Patents

Abstract

The present invention discloses a pearlescent film capable of displaying multiple colors, comprising a foaming layer, a plurality of semicircular balls being evenly spaced on both sides of the foaming layer, a notch being provided on one side of the semicircular balls, a plurality of semicircular balls on the same side being a group, a pearlescent layer being fixed to the plurality of semicircular balls in the same group, a plurality of T-blocks being evenly spaced on both sides of two pearlescent layers, a plurality of T-blocks on the same side being a group, a polyethylene resin layer being provided on the plurality of T-blocks in one group, a transparent layer being provided on the polyethylene resin layer, a protective layer being attached to the transparent layer, an aluminum layer being provided on the plurality of T-blocks in the other group, a polypropylene resin layer being connected to one side of the aluminum layer. The present invention reflects the pearlescent effect of the pearlescent layer through the aluminum layer, thereby showing a better pearlescent visual effect, the connection between the pearlescent layer and other layers being more stable, convenient for the staff to take and put, increasing the friction force, improving the practicality of the product, and being more convenient to use.

Description

A pearlescent film capable of displaying multiple colors

technical field

The invention relates to the technical field of thin films, in particular to a pearlescent thin film capable of displaying multiple colors.

Background technique

Pearlescent film is made by mixing polypropylene resin, calcium carbonate and pearlescent pigments by mechanical foaming method, and then biaxially stretched. The specific gravity is only about 0.7, while the specific gravity of PP is about 0.9, and it has a variety of colors and good decoration. , Pearlescent film is made of polypropylene resin as raw material, adding calcium carbonate and pearlescent pigments, etc., after mixing, it is biaxially stretched. Due to the mechanical foaming method, the specific gravity of the pearlescent film is only about 0.7, while the specific gravity of PP is about 0.9, so flexible packaging companies are willing to choose it because it is cheap, good in decoration and excellent in performance. General composite structure BOPP pearlescent film/CPP, BOPP pearlescent film/PE, etc., because of their pearlescent effect, are often used in cold drink packaging such as: ice cream, heat-sealed labels, sweets, biscuits, flavor snacks, etc. At present, my country's domestic cold drink packaging has developed by leaps and bounds, realizing the diversification of cold drink packaging forms and product functions. According to relevant reports and data, cold drink packaging accounts for 23% of flexible packaging. At present, some flexible packaging color printing companies are focusing on cold drink packaging processing, aiming to build professional brand enterprises. According to relevant data, my country's cold drink packaging is currently developing at a rate of 30%. Senior experts predict that the rapid development of cold drink packaging will not only drive the development of related industries, but also allow flexible packaging companies to see broad prospects. Cold drink packaging is gradually shifting from the previous single-layer plastic film packaging to multi-layer packaging, which has better functions such as barrier performance and ultra-low freezing performance, and its structure is also diversified, such as BOPP/BOPP (pearl), BOPP (pearl)/PE, BOPP (pearl)/CPP, etc. Cold drink packaging is currently developing in a high-end direction, such as PET/AL/CPP, PET/CPE, PET/L/NY/CPP (CPE), which not only requires the performance of the packaging products to meet the quality requirements, but also ensures that the contents do not deteriorate , At the same time, higher requirements are also put forward for related materials such as inks, films, and composite adhesives. Famous brand cold drink packaging products such as Heluxue and Yili on the market are good examples. BOPP pearlescent film has become the new darling of packaging, mainly due to the excellent barrier properties of the material, and because the film material has a certain pearlescent effect and is very decorative because a certain amount of CaCO3 and pearlescent pigments are added in the actual production and processing process. The development history of pearlescent film in our country is not long, but the demand for packaging is developing rapidly.

The opacity of the pearlescent film is low. When the polypropylene film is combined with the pearlescent film, the structure setting cannot achieve a good pearlescent visual effect. The connection structure is simple, and the pearlescent film cannot be protected, which is easy to affect the pearlescent visual effect. , we proposed a pearlescent film that can display multiple colors to solve the above problems.

Contents of the invention

The purpose of the present invention is to solve the shortcomings in the prior art, and propose a pearlescent film that can display multiple colors.

In order to achieve the above object, the present invention adopts the following technical solutions:

A pearlescent film capable of displaying multiple colors, comprising a foam layer, a plurality of hemispheres are equally spaced on both sides of the foam layer, a gap is provided on one side of the hemisphere, and a plurality of hemispheres on the same side The balls form a group, and multiple hemispheres in the same group are jointly fixed with a pearly layer. There are multiple T-shaped blocks at equal intervals on both sides of the two pearly layers. Multiple T-shaped blocks on the same side form a group. One group A polyethylene resin layer is commonly set on a plurality of T-shaped blocks, a transparent layer is arranged on the polyethylene resin layer, and a protective layer is attached on the transparent layer, and a plurality of T-shaped blocks of the other group are jointly arranged. There is an aluminum layer, one side of the aluminum layer is connected with a polypropylene resin layer, one side of the polypropylene resin layer is provided with a heat-sealing layer, the transparent layer, polyethylene resin layer, foam layer, aluminum layer and Both sides of the polypropylene resin layer are coated with transparent glue, and the transparent glue is composed of the following components by mass fraction, polyisoprene 15%-25%, photocurable material 30%-40%, photosensitizer 2% -5%, active monomer 20%-30% and additives 6%-10%.

Preferably, the protective layer is a transparent PET film.

Preferably, the heat-sealing layer is made of polyethylene through blistering process. Preferably, the thickness ratio of the polyethylene resin layer, pearl layer, foam layer, polypropylene resin layer and heat-sealing layer is 2:4:3:2:1. Preferably, a plurality of bumps are arranged at equal intervals on the protective layer. Preferably, one side of the heat-sealing layer is corona treated. Preferably, the active monomer is 2-phenoxyethyl propyl acrylate. Preferably, the auxiliary agent is a silicone defoamer. In the present invention, when in use, by providing an aluminum layer on one side of the pearlescent layer, the pearlescent effect of the pearlescent layer can be effectively reflected, thereby improving the overall pearlescent visual effect. In the gap, the connection between the two pearlescent layers and the foaming layer is made closer, and a T-shaped block is set on one side of the pearlescent layer, so that the connection between the pearlescent layer and the polyethylene resin layer and the aluminum layer is more closely connected, and a protective layer is set to protect the product. Protection, the protective layer is equipped with bumps that can effectively increase the friction of the surface, so that it is more convenient to use, easy to take and place, and use transparent glue to make the connections between the layers tight.

Compared with prior art, the beneficial effect of the present invention is:

1. By setting the aluminum layer, the pearlescent effect of the pearlescent layer can be effectively reflected, which solves the problem of poor visual effect of the existing pearlescent, achieves the purpose of improving the pearlescent effect of the product, and is convenient to use;

2. Through the cooperation of the hemisphere and the T-shaped block, the connection is tighter and more stable, which solves the problem of unstable connection due to the single use of glue, achieves the purpose of stabilizing the connection between the pearl layer and other layers, and improves product stability ;

3. By setting the bumps, the surface friction of the product is increased, which solves the problem of inconvenient use, achieves the purpose of easy use, is convenient for the staff to take, and will not slide randomly when placed, which improves the stability;

In summary, the present invention can achieve better pearlescent visual effects, and make the connection between the pearlescent layer and other layers more stable, which is convenient for the staff to pick and place, increases the friction, improves the practicability of the product, and makes the product more durable. easy to use.

Description of drawings

Fig. 1 is the front view of a kind of pearlescent film that can display multiple colors that the present invention proposes;

Fig. 2 is a top view of a pearlescent film capable of displaying multiple colors proposed by the present invention.

In the figure: 1 transparent layer, 2 polyethylene resin layer, 3 pearlescent layer, 4 T-shaped block, 5 aluminum layer, 6 polypropylene resin layer, 7 heat sealing layer, 8 bump, 9 protective layer, 10 hemisphere, 11 Gap, 12 foam layers.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

Referring to Figures 1-2, a pearlescent film capable of displaying multiple colors includes a foam layer 12, a plurality of hemispheres 10 are arranged at equal intervals on both sides of the foam layer 12, and one side of the hemisphere 10 is provided with a gap 11 , the foam layer 12 expands into the gap 11, so that the foam layer 12 and the hemisphere 10 are stably connected and not easy to loosen; a plurality of hemispheres 10 on the same side form a group, and a plurality of hemispheres 10 of the same group are jointly fixed with a Pearlescent layer 3, so that the pearlescent layer 3 is stably connected with the foam layer 12 through the hemisphere 10, and makes it have a strong stereoscopic vision, and at the same time increases toughness, makes the tensile strength high, and improves its practicability. Two pearlescent layers 3 A plurality of T-shaped blocks 4 are arranged at equal intervals on both sides of the same side, and a plurality of T-shaped blocks 4 on the same side form a group, and a plurality of T-shaped blocks 4 in one group are jointly provided with a polyethylene resin layer 2, and the polyethylene resin The layer 2 can wrap the T-shaped block 4, so that the polyethylene resin layer 2 and one of the pearlescent layers 3 are stably connected, the polyethylene resin layer 2 is provided with a transparent layer 1, and the transparent layer 1 is attached with a protective layer 9, which can Effectively protect the pearlescent layer 3 from being damaged by external forces or external factors, and prolong the service life. An aluminum layer 5 is provided on multiple T-shaped blocks 4 of the other group, and the aluminum layer 5 covers another group of T-shaped blocks 4 . Thereby, the aluminum layer 5 is stably connected with another pearly layer 3, which facilitates the aluminum layer 5 to reflect the pearly effect of the pearly layer 3, thereby improving the overall pearly effect; one side of the aluminum layer 5 is connected with a polypropylene resin layer 6, and the poly One side of the acrylic resin layer 6 is provided with a heat-sealing layer 7, and one side of the heat-sealing layer 7 is treated with corona, thereby effectively preventing static electricity and being convenient to use. The transparent layer 1, polyethylene resin layer 2, foam layer 12, Both sides of the aluminum layer 5 and the polypropylene resin layer 6 are coated with transparent glue, which is convenient for pasting. The transparent glue is composed of the following mass fractions, polyisoprene 15%-25%, light-curing material 30%- 40%, photosensitizer 2%-5%, active monomer 20%-30% and auxiliary agent 6%-10%.

In the present invention, the protective layer 9 is a transparent PET film, and the PET film has excellent physical properties, chemical properties, dimensional stability, transparency, and recyclability, and can effectively protect the pearlescent layer 3 from external forces or external environments. produce impact and prolong life, the heat-sealing layer 7 is made of polyethylene through plastic-absorbing process, and is adsorbed on the surface, so that the heat-sealing layer 7 and the polypropylene resin layer 6 can be connected more closely, the polyethylene resin layer 2, the pearlescent layer 3. The thickness ratio of the foam layer 12, the polypropylene resin layer 6 and the heat-sealing layer 7 is 2:4:3:2:1, and the protective layer 9 is provided with a plurality of bumps 8 at equal intervals, which is conducive to improving the product surface friction, so that it can be conveniently used for work, and can effectively avoid specular reflection, thereby improving the visual effect of pearlescent reflection. One side of the heat-sealing layer 7 is treated with corona to effectively prevent static electricity. The active monomer uses 2-benzene Oxyethyl propyl acrylate, silicone defoamer is used as auxiliary agent. Silicone defoamer is a non-volatile oily liquid at room temperature. It is insoluble or has very little solubility in water, animal and vegetable oils, and mineral oils. It can withstand high temperatures. , can also withstand low temperature, inert chemical properties, stable physical properties, no biological activity, can eliminate the foam formed by the material in the glue production process, and stabilize and fix.

In the present invention, when in use, by providing an aluminum layer 5 on one side of the pearlescent layer 3, the pearlescent effect of the pearlescent layer 3 can be effectively reflected, thereby improving the overall pearlescent visual effect. Make the foam layer 12 enter in the gap 11, make the connection of the two pearlescent layers 3 and the foam layer 12 more closely, and one side of the pearlescent layer 3 is provided with a T-shaped block 4, so that the pearlescent layer 3 and the polyethylene resin layer 2 and The connection of the aluminum layer 5 is more closely connected, and a protective layer 9 is set to protect the product. The protective layer 9 is provided with a bump 8 which can effectively increase the friction of the surface, thereby making it more convenient to use and easy to take and place. Use transparent glue to make each layer closely connected.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solutions of the present invention and its Any equivalent replacement or change of the inventive concept shall fall within the protection scope of the present invention.

Claims (8)

1. a kind of pearly-lustre film showing multiple color, including foaming layer（12）, it is characterised in that：The foaming layer（12）'s Both sides are equidistantly equipped with multiple semi-round balls（10）, the semi-round ball（10）Side be equipped with gap（11）, the same side it is multiple Semi-round ball（10）It is one group, same group of multiple semi-round balls（10）It is fixed with pearl layer jointly（3）, two pearl layers（3）Two Side is equidistantly equipped with multiple T-blocks（4）, multiple T-blocks of the same side（4）It is one group, multiple T-blocks of one of which（4） It is upper to be equipped with polyvinyl resin layer jointly（2）, the polyvinyl resin layer（2）It is equipped with hyaline layer（1）, the hyaline layer（1）On Attach matcoveredn（9）, another group of multiple T-blocks（4）It is upper to be equipped with aluminium layer jointly（5）, the aluminium layer（5）Side be connected with Polypropylene resin layer（6）, the polypropylene resin layer（6）Side be equipped with hot sealing layer（7）, the hyaline layer（1）, polyethylene tree Lipid layer（2）, foaming layer（12）, aluminium layer（5）And polypropylene resin layer（6）Both sides be coated with transparent glue, the transparent adhesive tape Water by following mass fraction at being grouped as, polyisoprene 15%-25%, photo-curing material 30%-40%, photosensitizer 2%-5%, work Property monomer 20%-30% and auxiliary agent 6%-10% compositions.

2. a kind of pearly-lustre film showing multiple color according to claim 1, which is characterized in that the protective layer （9）For transparent PET film.

3. a kind of pearly-lustre film showing multiple color according to claim 1, which is characterized in that the hot sealing layer （7）It is process through plastic uptake technique using polyethylene.

4. a kind of pearly-lustre film showing multiple color according to claim 1, which is characterized in that the polyethylene tree Lipid layer（2）, pearl layer（3）, foaming layer（12）, polypropylene resin layer（6）And hot sealing layer（7）Thickness ratio be 2:4:3:2:1.

5. a kind of pearly-lustre film showing multiple color according to claim 1, which is characterized in that the protective layer （9）On equidistantly be equipped with multiple convex blocks（8）.

6. a kind of pearly-lustre film showing multiple color according to claim 1, which is characterized in that the hot sealing layer （7）Side through sided corona treatment.

7. a kind of pearly-lustre film showing multiple color according to claim 1, which is characterized in that the activated monomer Using 2- phenoxy group second propyl acrylates.

8. a kind of pearly-lustre film showing multiple color according to claim 1, which is characterized in that the auxiliary agent uses Organic silicon defoamer.