Packaging body and preparation method thereof

Abstract

The invention provides a packaging body, at least one surface of the packaging body is provided with a pattern area, the pattern area comprises a non-textured area and a textured area, the material of the packaging body comprises 50-99.9%, preferably 70-99.9%, more preferably 90-99.8% and most preferably 95-99.6% of a matrix material and 0.01-50%, preferably 0.02-30% and more preferably 0.03-10% based on the total weight of the packaging body, the matrix material is a thermoplastic material, and the filler is selected from one or more of metal sheets and pearlescent particles. The pattern area arranged on the surface of the packaging body manufactured according to the invention is very easily perceived by consumers, so that the information of the product contained in the packaging body is known, in addition, the packaging body according to the invention does not need to use additional indicating labels and / or stickers and the like, so that the packaging process is remarkably simplified, and the packaging material cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging, and in particular to a packaging body and a preparation method thereof. Background Art

[0002] In current packaging product (e.g., packaging box) construction, in order to indicate specific details of the product to consumers (e.g., information about the manufacturer, batch number, production date, expiration date, ingredients and content, product material, and product instructions, etc.), indicative labels and / or stickers printed with specific details are usually attached to the outer surface and / or inner surface of the packaging box. This construction is usually more expensive due to the inclusion of additional labels and / or stickers, which are often non-biodegradable and often consumers do not really notice them.

[0003] In addition, in some current packaging boxes, in order to indicate specific details of the product to consumers (e.g., information about the manufacturer, batch number, production date, expiration date, ingredients and their content, product material, and product instructions, etc.), one way is to place a label and / or card recording the specific details of the product above the product inside the packaging box so that consumers can see them when opening the box. However, such labels and / or cards are easily lost because they are not fixed. In addition, the labels and / or cards provided additionally to the packaging box also increase the production cost.

[0004] In addition, another commonly used method for imparting indicative functions to packaged products is to emboss information such as text, numbers, symbols, Braille, images, and schematic diagrams on the outer surface of the injection-molded package. In this method, the visibility of the above information is usually adjusted by using different embossing depths. However, the above method will increase the weight of the packaging material and is not suitable for thin-wall injection molding processes.

[0005] Therefore, it is of great significance to develop a packaging body with an obvious indication area that is easily perceived by consumers, has a low production cost and is suitable for thin-wall injection molding technology. Summary of the invention

[0006] Based on the technical problems described above, one of the objects of the present invention is to provide a packaging body with an obvious indication area that is easily perceived by consumers, with a low production cost and suitable for thin-wall injection molding technology, and a preparation method thereof.

[0007] Specifically, according to one aspect of the present invention, a packaging body is provided, wherein a pattern area is provided on at least one surface of the packaging body, the pattern area includes a non-texture area and a texture area, and the material of the packaging body contains 50-99.9%, preferably 70-99.9%, more preferably 90-99.8%, most preferably 95-99.6% of a matrix material and 0.01-50%, preferably 0.02-30%, more preferably 0.03-10%, most preferably 0.05-5% of a filler based on its total weight, the matrix material is a thermoplastic material, and the filler is selected from one or more of metal flakes and pearlescent particles.

[0008] According to certain preferred embodiments of the present invention, the thermoplastic material is selected from polypropylene (PP), chlorinated polypropylene (CPP), high density polyethylene (HDPE), ultra-high molecular weight polyethylene (UHMWPE), medium density polyethylene (MDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), chlorinated polyethylene (CPE), ethylene-propylene copolymer, polymethylpentene (PMP), cyclic olefin copolymer (COC), polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC), polyvinyl dichloride (PVDC), polystyrene (PS), acrylonitrile benzene Ethylene (AS), acrylonitrile butadiene styrene (ABS), polyacrylonitrile (PAN), styrene butadiene copolymer (SBC), polymethyl methacrylate (PMMA), polyamide (PA), polyethylene terephthalate (PET), ethylene glycol modified polyethylene terephthalate (PETG), polycyclohexanedimethanol terephthalate (PCT), ethylene glycol modified PCT copolymer (PCTG), cyclohexanedimethanol terephthalate copolyester (PCTA), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polycarbonate (PC ), cellulosics, polylactide (PLA), polybutylene terephthalate (PBAT), polybutylene succinate (PBS), polybutylene succinate adipate (PBSA), polycaprolactone (PCL), thermoplastic starch (TPS), polyvinyl alcohol (PVA), chitosan, polyhydroxyalkanoate (PHA), copolymers of ethylene methacrylic acid and zinc (Zn), sodium (Na), lithium (Li) or other metal ions, thermoplastic elastomers (TPE), styrene-isoprene-styrene copolymers (SIS), styrene-ethylene-butylene-styrene block copolymers (SEBS), styrene-ethylene-propylene-styrene copolymers (SEPS), thermoplastic olefins (TPO), thermoplastic vulcanizates (TPV), thermoplastic polybutadiene (TPB), thermoplastic polyisoprene (TPI), thermoplastic polyvinyl chloride (TPVC), thermoplastic chlorinated polyethylene (TCPE), thermoplastic polyurethane elastomers (TPU), thermoplastic polyester elastomers (TPEE), thermoplastic polyamide elastomers (TPAE), thermoplastic fluoride (TPF), thermoplastic silicone vulcanizate (TPSiV), copolymers thereof, or any combination thereof.

[0009] According to certain preferred embodiments of the present invention, the thermoplastic material is virgin resin, recycled resin or a mixture thereof.

[0010] According to certain preferred embodiments of the present invention, wherein:

[0011] The average maximum diameter of the metal flakes is 1 μm to 100 μm, preferably 3 μm to 50 μm, more preferably 5 μm to 30 μm, and most preferably 7 μm to 25 μm;

[0012] The average thickness of the metal flakes is 0.01 μm to 10 μm, preferably 0.05 μm to 1 μm, more preferably 0.10 μm to 0.50 μm, most preferably 0.15 μm to 0.35 μm; and / or

[0013] The aspect ratio of the average diameter to the average thickness of the metal flakes is 3 to 1,000, preferably 5 to 500, more preferably 10 to 200, most preferably 30 to 100.

[0014] According to certain preferred embodiments of the present invention, the metal flakes comprise a metal and / or its oxide, wherein the metal is selected from the group consisting of aluminum, copper, zinc, silver, gold, palladium, chromium, and any combination and / or alloy thereof.

[0015] According to certain preferred embodiments of the present invention, the metal flakes include a core and an organic coating outside the core, wherein the core contains the metal and / or its oxide, and the organic coating contains silicone, PE wax, PP wax, styrene-maleic anhydride copolymer, terpene resin, stearate, mineral oil, siloxane or any combination thereof.

[0016] According to certain preferred embodiments of the present invention, the pearlescent particles are selected from one or more of mica flakes, glass fibers, silica particles and alumina particles.

[0017] According to certain preferred embodiments of the present invention, the material of the packaging body further comprises 0.02% to 15%, preferably 0.1% to 10%, more preferably 0.2% to 2%, and even more preferably 0.2% to 1% of a colorant based on its total weight.

[0018] According to certain preferred embodiments of the present invention, the textured area has a regular or irregular shape and is surrounded and filled by the non-textured area, wherein the total area of ​​the textured area accounts for 10-30% of the total area of ​​the patterned area.

[0019] According to certain preferred embodiments of the present invention, the textured area having a regular or irregular shape is arranged to form a pattern selected from one or more of words, numbers, symbols, Braille and schematic diagrams.

[0020] According to certain preferred embodiments of the present invention, the non-texture area has a regular or irregular shape and is surrounded and filled by the texture area, wherein the total area of ​​the texture area accounts for 30-98% of the total area of ​​the pattern area.

[0021] According to some preferred embodiments of the present invention, the non-textured area having a regular or irregular shape is arranged to form a pattern selected from one or more of text, numbers, symbols, Braille and schematic diagrams.

[0022] According to certain preferred embodiments of the present invention, the textured area comprises a linear textured area having a regular or irregular shape and is surrounded and filled by the non-textured area, wherein the line width of the linear non-textured area is greater than or equal to 10 μm, and the total area of ​​the textured area accounts for 0.5-10% of the total area of ​​the patterned area.

[0023] According to certain preferred embodiments of the present invention, the linear textured areas having regular or irregular shapes are arranged to form one or more patterns selected from the group consisting of text, numbers, symbols, Braille and schematic diagrams.

[0024] According to certain preferred embodiments of the present invention, the texture in the texture area is selected from one or more of linear texture, matte texture, dot texture, olive texture, wavy texture, woven texture, wood grain texture, ice flower texture, crushed diamond texture, cat's eye texture, cube texture, diamond texture and leather texture.

[0025] According to certain preferred embodiments of the present invention, the linear texture is a cross-line texture or a parallel-line texture.

[0026] According to certain preferred embodiments of the present invention, the texture depth of the texture zone is in the range of 1 μm to 1000 μm, preferably 25 μm to 150 μm, more preferably 50 μm to 100 μm, and the texture depth refers to the average distance from the highest point of the texture to the lowest point of the texture in the texture zone in a direction perpendicular to the inner surface of the box cover.

[0027] According to certain preferred embodiments of the present invention, the non-texture depth of the non-texture zone is in the range of 0 μm to 50 μm, preferably 0 μm to 20 μm, and more preferably 0 μm to 5 μm, and the non-texture depth refers to the average distance from the highest point of the non-texture to the lowest point of the non-texture in the non-texture zone in a direction perpendicular to the inner surface of the box cover.

[0028] According to certain preferred embodiments of the present invention, the depth difference between the non-texture area and the texture area is in the range of 0 μm to 1000 μm, preferably 25 μm to 150 μm, more preferably 50 μm to 100 μm, and the depth difference between the non-texture area and the texture area refers to the difference between the average height of the non-texture area and the average height of the texture area.

[0029] According to certain preferred embodiments of the present invention, the limiting depth difference between the non-texture area and the texture area is in the range of 0 μm to 1000 μm, preferably 25 μm to 150 μm, and more preferably 50 μm to 100 μm, and the limiting depth difference between the non-texture area and the texture area refers to the average distance between the highest point in the non-texture area and the highest point in the texture area, or refers to the average distance between the lowest point in the non-texture area and the lowest point in the texture area.

[0030] According to certain preferred embodiments of the present invention, the packaging body is a packaging box.

[0031] According to another aspect of the present invention, there is provided a method for preparing the packaging body as described above, the method comprising:

[0032] mixing the thermoplastic material and the filler to obtain a material mixture;

[0033] Using a laser to etch a pattern area on at least a portion of the surface of the mold, the pattern area comprising a non-texture area and a texture area; and

[0034] The packaging body is produced from the material mixture by injection molding using a laser-etched mold.

[0035] According to another aspect of the present invention, there is provided a method for preparing the packaging body as described above, the method comprising:

[0036] mixing the thermoplastic material and the filler to obtain a material mixture;

[0037] preparing a semi-finished packaging product from the material mixture by injection molding; and

[0038] A laser is used to etch a pattern area on at least a portion of the surface of the semi-finished packaging body, wherein the pattern area includes a non-texture area and a texture area, so as to prepare the packaging body.

[0039] Compared with the common packaging body in the prior art, the packaging body according to the present invention has the following advantages:

[0040] 1. No additional labels, cards and / or stickers are used for instructions, which reduces production costs;

[0041] 2. It has an obvious indication area that is easily noticed by consumers and can play a good indication role.

[0042] 3. Light weight and less material, suitable for thin-wall injection molding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 shows a schematic diagram of a pattern area according to a preferred embodiment of the present invention;

[0044] Figure 2 shows a schematic diagram of a pattern area according to another preferred embodiment of the present invention; and

[0045] Figure 3 A schematic diagram of a pattern area according to still another preferred embodiment of the present invention is shown. DETAILED DESCRIPTION

[0046] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It will be appreciated that other embodiments are contemplated and may be implemented without departing from the scope or spirit of the present invention. Therefore, the following detailed description is non-restrictive.

[0047] Unless otherwise indicated, all numbers used in the specification and claims to represent feature sizes, quantities and physicochemical properties should be understood as being modified by the term "about" in all cases. Therefore, unless otherwise indicated, the numerical parameters listed in the above specification and the attached claims are approximate values, and those skilled in the art can use the teachings disclosed herein to seek to obtain the desired properties and appropriately change these approximate values. The use of numerical ranges expressed as endpoints includes all numbers within the range and any range within the range, for example, 1 to 5 includes 1, 1.1, 1.3, 1.5, 2, 2.75, 3, 3.80, 4 and 5, etc.

[0048] In order to make it easy for consumers to perceive product indication information and reduce production costs, the present invention provides a packaging body, at least one surface of the packaging body is provided with a pattern area, the pattern area includes a non-texture area and a texture area, the material of the packaging body contains 50-99.9%, preferably 70-99.9%, more preferably 90-99.8%, most preferably 95-99.6% of a matrix material and 0.01-50%, preferably 0.02-30%, more preferably 0.03-10%, most preferably 0.05-5% of a filler based on its total weight, the matrix material is a thermoplastic material, and the filler is selected from one or more of metal flakes and pearlescent particles.

[0049] The inventors of the present invention have found that when an injection molding material containing optical fillers (e.g., one or more of metal flakes and pearlescent particles) is used as one of the structural materials of the package body and a pattern area including a non-texture area and a texture area is provided on at least one surface of the package body, the pattern area is very easy to be perceived by consumers. In addition, the recognition effect can be further improved by specifically providing the microstructures of the non-texture area and the texture area.

[0050] Preferably, the pattern area is formed by transferring a laser-etched pattern on a mold during the injection molding process of the packaging body, or by directly etching the inner surface of the packaging body using a laser. Thus, the pattern area has the same structural material as the other parts of the packaging body and is integrated, thereby eliminating the need for additional labels, cards and / or stickers for indication, which can reduce the production cost of the packaging body.

[0051] There is no particular restriction on the specific type of matrix material used in the above injection molding process, which can be appropriately selected from the range of materials commonly used in the art. Preferably, the matrix material is a thermoplastic material. The thermoplastic material is selected from polypropylene (PP), chlorinated polypropylene (CPP), high-density polyethylene (HDPE), ultra-high molecular weight polyethylene (UHMWPE), medium-density polyethylene (MDPE), low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), chlorinated polyethylene (CPE), ethylene-propylene copolymer, polymethylpentene (PMP), cyclic olefin copolymer (COC), polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC), polyvinyl dichloride (PVDC), polystyrene (PS), acrylonitrile styrene (AS), acrylonitrile butadiene styrene (ABS), Abs (ABS), polyacrylonitrile (PAN), styrene butadiene copolymer (SBC), polymethyl methacrylate (PMMA), polyamide (PA), polyethylene terephthalate (PET), ethylene glycol-modified polyethylene terephthalate (PETG), polycyclohexanedimethanol terephthalate (PCT), ethylene glycol-modified PCT copolymer (PCTG), cyclohexanedimethanol terephthalate copolyester (PCTA), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polycarbonate (PC), cellulosic plastics , polylactide (PLA), polybutylene terephthalate (PBAT), polybutylene succinate (PBS), polybutylene succinate adipate (PBSA), polycaprolactone (PCL), thermoplastic starch (TPS), polyvinyl alcohol (PVA), chitosan, polyhydroxyalkanoate (PHA), copolymers of ethylene methacrylic acid and zinc (Zn), sodium (Na), lithium (Li) or other metal ions, thermoplastic elastomer (TPE), styrene-isoprene-styrene copolymer (SIS), styrene-ethylene-butylene-styrene block copolymer ( SEBS), styrene-ethylene-propylene-styrene copolymer (SEPS), thermoplastic olefin (TPO), thermoplastic vulcanizate (TPV), thermoplastic polybutadiene (TPB), thermoplastic polyisoprene (TPI), thermoplastic polyvinyl chloride (TPVC), thermoplastic chlorinated polyethylene (TCPE), thermoplastic polyurethane elastomer (TPU), thermoplastic polyester elastomer (TPEE), thermoplastic polyamide elastomer (TPAE), thermoplastic fluoride (TPF), thermoplastic silicone vulcanizate (TPSiV), their copolymers or any combination thereof.

[0052] Preferably, the thermoplastic material is virgin resin, recycled resin or a mixture thereof.

[0053] According to certain embodiments of the present invention, in order to further improve the effect of consumers noticing the pattern area on the package, the average maximum diameter of the metal flakes is 1 μm to 100 μm, preferably 3 μm to 50 μm, more preferably 5 μm to 30 μm, and most preferably 7 μm to 25 μm; the average thickness of the metal flakes is 0.01 μm to 10 μm, preferably 0.05 μm to 1 μm, more preferably 0.10 μm to 0.50 μm, and most preferably 0.15 μm to 0.35 μm; and / or the aspect ratio of the average diameter to the average thickness of the metal flakes is 3 to 1,000, preferably 5 to 500, more preferably 10 to 200, and most preferably 30 to 100. Preferably, the metal flakes contain metals and / or oxides thereof, wherein the metal is selected from the group consisting of aluminum, copper, zinc, silver, gold, palladium, chromium, and any combination and / or alloy thereof.

[0054] In addition, in order to improve the miscibility of the metal flakes in thermoplastic materials, preferably, the metal flakes include a core and an organic coating outside the core, wherein the core contains the metal and / or its oxide, and the organic coating contains silicone, PE wax, PP wax, styrene-maleic anhydride copolymer, terpene resin, stearate, mineral oil, siloxane or any combination thereof.

[0055] According to some embodiments of the present invention, the pearlescent particles are selected from one or more of mica flakes, glass fibers, silica particles and alumina particles.

[0056] According to certain embodiments of the present invention, in order to achieve better operability, the metal flakes and the pearlescent particles mentioned above may be used in the form of masterbatches commonly used in the art.

[0057] According to certain embodiments of the present invention, preferably, in order to impart a specific color to the package, the material of the package further comprises 0.02% to 15%, preferably 0.1% to 10%, more preferably 0.2% to 2%, and even more preferably 0.2% to 1% of a colorant based on its total weight. There is no particular restriction on the type of colorant that can be used in the present invention, as long as it can be well melt-mixed with the thermoplastic material and the metal flakes and pearlescent particles.

[0058] Regarding the above-mentioned non-texture area and texture area, according to a preferred embodiment of the present invention, the texture area has a regular or irregular shape and is surrounded and filled by the non-texture area, wherein the total area of ​​the texture area accounts for 10-30% of the total area of ​​the pattern area.

[0059] Figure 1A schematic diagram of a pattern area according to a preferred embodiment of the present invention is shown, wherein the pattern area 1 comprises a non-textured area 2 and a textured area 3 , wherein the textured area 3 has a regular or irregular shape and is surrounded and filled by the non-textured area 2 .

[0060] In the above schematic diagram, the texture area 3 having a regular or irregular shape is set to the abbreviation "PG" of Procter & Gamble, but the present invention is not limited to this. The texture area 3 having a regular or irregular shape can be set to any one of or a combination of words, numbers, symbols, Braille and schematic diagrams indicating various product details and / or methods of use of the product in the package.

[0061] In addition, Figure 1 The texture area 3 is represented by a black shape, however, the texture area 3 is not limited thereto, and the texture in the texture area 3 can be selected from one or more of linear texture, matte texture, dot texture, olive texture, wavy texture, woven texture, wood grain texture, ice flower texture, diamond texture, cat's eye texture, cube texture, diamond texture and leather texture, etc. The texture of the linear texture is preferably a cross line texture or a parallel line texture.

[0062] Preferably, in the above preferred embodiments according to the present invention, in order to make consumers easily aware of the pattern area, the total area of ​​the texture area accounts for 10-30% of the total area of ​​the pattern area, preferably 10-25%, more preferably 10-20%, and most preferably 10-15%.

[0063] Regarding the above-mentioned non-texture area and texture area, according to another preferred embodiment of the present invention, the non-texture area has a regular or irregular shape and is surrounded and filled by the texture area, wherein the total area of ​​the texture area accounts for 30-90% of the total area of ​​the pattern area.

[0064] Figure 2 A schematic diagram of a pattern area according to another preferred embodiment of the present invention is shown, wherein the pattern area 1 comprises a non-texture area 2 and a texture area 3, wherein the non-texture area 2 has a regular or irregular shape and is surrounded and filled by the texture area 3.

[0065] In the above schematic diagram, the non-textured area 2 having a regular or irregular shape is set to the abbreviation "PG" of Procter & Gamble, but the present invention is not limited to this. The non-textured area 2 having a regular or irregular shape can be set to any one of or a combination of words, numbers, symbols, Braille and schematic diagrams indicating various product details and / or methods of use of the product in the package.

[0066] In addition, Figure 2The "diamond-shaped" texture is used to represent the texture area 3, however, the texture area 3 is not limited thereto, and the texture in the texture area 3 can be selected from one or more of linear texture, matte texture, dot texture, olive texture, wavy texture, woven texture, wood grain texture, ice flower texture, crushed diamond texture, cat's eye texture, cube texture, diamond texture and leather texture, etc. The texture of the linear texture is preferably a cross line texture or a parallel line texture.

[0067] Preferably, in the above preferred embodiments according to the present invention, in order to make consumers easily aware of the pattern area, the total area of ​​the texture area accounts for 30%-98% of the total area of ​​the pattern area, preferably 70-98%, more preferably 80-98%, and most preferably 90-98%.

[0068] Regarding the non-texture area and texture area mentioned above, according to another preferred embodiment of the present invention, the texture area includes a linear texture area with a regular or irregular shape and is surrounded and filled by the non-texture area, wherein the line width of the linear non-texture area is greater than or equal to 10 μm, and the total area of ​​the texture area accounts for 0.5-10% of the total area of ​​the pattern area.

[0069] Figure 3 A schematic diagram of a pattern area according to another preferred embodiment of the present invention is shown, wherein the pattern area 1 includes a non-texture area 2 and a texture area 3, wherein the texture area 3 includes a linear texture area having a regular or irregular shape and is surrounded and filled by the non-texture area 2.

[0070] In the above schematic diagram, the texture area 3 having a regular or irregular shape is set to the abbreviation "PG" of Procter & Gamble, but the present invention is not limited to this. The texture area 3 having a regular or irregular shape can be set to any one of or a combination of words, numbers, symbols, Braille and schematic diagrams indicating various product details and / or methods of use of the product in the package.

[0071] In addition, Figure 3 In the figure, a linear texture is used to represent the texture area 3, but the present invention is not limited thereto. The texture in the texture area 3 can be selected from one or more of a linear texture, a matte texture, a dot texture, an olive texture, a wavy texture, a woven texture, a wood grain texture, an ice flower texture, a diamond texture, a cat's eye texture, a cube texture, a diamond texture, and a leather texture. The texture of the linear texture is preferably a cross line texture or a parallel line texture.

[0072] Preferably, in the above preferred embodiments according to the present invention, in order to make consumers easily perceive the pattern area, the line width of the linear non-texture area is greater than or equal to 10μm, preferably greater than or equal to 30μm, more preferably greater than or equal to 50μm and most preferably greater than or equal to 100μm, and the total area of ​​the texture area 6 accounts for 0.5-10% of the total area of ​​the pattern area 4, preferably 0.5-5%, more preferably 0.5-3%, and most preferably 0.5-1%.

[0073] In addition, the inventors of the present invention have found that by specifically setting the microstructure of the non-textured area and the textured area, the effect of consumers noticing the patterned area on the package can be further improved. Preferably, the texture depth of the textured area is in the range of 1 μm to 1000 μm, preferably 25 μm to 150 μm, and more preferably 50 μm to 100 μm, and the texture depth refers to the average distance from the highest point of the texture to the lowest point of the texture in the textured area in a direction perpendicular to the inner surface of the box cover.

[0074] In the above preferred embodiments according to the present invention, in order to further enhance the effect of consumers noticing the pattern area on the packaging body, preferably, the non-texture depth of the non-texture area is in the range of 0 μm to 50 μm, preferably 0 μm to 20 μm, more preferably 0 μm to 5 μm, and the non-texture depth refers to the average distance from the highest point of the non-texture to the lowest point of the non-texture in the non-texture area in a direction perpendicular to the inner surface of the box lid.

[0075] In the above preferred embodiments according to the present invention, in order to make consumers easily perceive the pattern area formed on the packaging body, preferably, the depth difference between the non-texture area and the texture area is in the range of 0μm to 1000μm, preferably 25μm to 150μm, more preferably 50μm to 100μm, and the depth difference between the non-texture area and the texture area refers to the difference between the average height of the non-texture area and the average height of the texture area.

[0076] In the above preferred embodiments according to the present invention, in order to further enhance the effect of consumers noticing the pattern area on the packaging body, preferably, the extreme depth difference between the non-texture area and the texture area is in the range of 0 μm to 1000 μm, preferably 25 μm to 150 μm, more preferably 50 μm to 100 μm, and the extreme depth difference between the non-texture area and the texture area refers to the average distance between the highest point in the non-texture area to the highest point in the texture area, or refers to the average distance between the lowest point in the non-texture area to the lowest point in the texture area.

[0077] In the field of materials, the Flop Index (FI) is a parameter that characterizes the change in color brightness and is a very important indicator for measuring the appearance of materials. In particular, FI represents the change in brightness at different scattering angles. It can be calculated using the following formula:

[0078]

[0079] Where: L* 15° Indicates the luminosity measured when the reflection direction is 15° to the normal; L* 110° Indicates the luminosity measured when the reflection direction is 110° to the normal; L* 45° Represents the luminosity measured at the normal.

[0080] In the present invention, in order to further enhance the effect of consumers noticing the pattern area on the package, the difference (ΔFI) between the angle-dependent color index of the non-texture area and the angle-dependent color index of the texture area is greater than 1.5, preferably greater than 3, more preferably greater than 5, and even more preferably greater than 7.

[0081] In addition, in the field of materials, color difference (ΔE) is another important indicator to measure the visibility of the surface pattern of an object. Specifically, color difference (ΔE) can be calculated by the CIELAB color difference formula shown below:

[0082] ΔE=(ΔL 2 +Δa 2 +Δb 2 ) 0.5

[0083] Wherein ΔL, Δa and Δb are the brightness difference, red-green color difference and yellow-blue color difference between the pattern area surface of the package body and the reference plate, respectively.

[0084] According to the above formula, the 15° color difference (ΔE15), 75° color difference (ΔE75) and 110° color difference (ΔE110) at different reflection angles (15°, 75° and 110°) on the pattern area on the package body can be measured and calculated.

[0085] In the present invention, in order to further enhance the effect of consumers noticing the pattern area on the package, the 15° color difference (ΔE15) of the pattern area is greater than 2.5, preferably greater than 10; the 75° color difference (ΔE75) of the pattern area is greater than 2.5, preferably greater than 10; and / or the 110° color difference (ΔE110) of the pattern area is greater than 2.5, preferably greater than 10.

[0086] According to certain preferred embodiments of the present invention, the packaging body is a packaging box.

[0087] There is no particular limitation on the method for producing the packaging body according to the present invention.

[0088] Preferably, according to another aspect of the present invention, there is provided a method for preparing the packaging body as described above, the method comprising:

[0089] mixing the thermoplastic material and the filler to obtain a material mixture;

[0090] Using a laser to etch a pattern area on at least a portion of the surface of the mold, the pattern area comprising a non-texture area and a texture area; and

[0091] The packaging body is produced from the material mixture by injection molding using a laser-etched mold.

[0092] Preferably, according to another aspect of the present invention, there is provided a method for preparing the packaging body as described above, the method comprising:

[0093] mixing the thermoplastic material and the filler to obtain a material mixture;

[0094] preparing a semi-finished packaging product from the material mixture by injection molding; and

[0095] A laser is used to etch a pattern area on at least a portion of the surface of the semi-finished packaging body, wherein the pattern area includes a non-texture area and a texture area, so as to prepare the packaging body.

[0096] In the above two methods, there is no particular restriction on the specific type of thermoplastic material used. The thermoplastic material can be a virgin resin, a recycled resin or a mixture thereof. Specifically, the thermoplastic material can be selected from injection molding raw materials commonly used in the art, such as polypropylene (PP), chlorinated polypropylene (CPP), high-density polyethylene (HDPE), ultra-high molecular weight polyethylene (UHMWPE), medium-density polyethylene (MDPE), low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), chlorinated polyethylene (CPE), ethylene-propylene copolymer, polymethylpentene (PMP), cyclic olefin copolymer (COC), polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC), polyvinyl dichloride (PVDC), polystyrene (PS ), acrylonitrile styrene (AS), acrylonitrile butadiene styrene (ABS), polyacrylonitrile (PAN), styrene butadiene copolymer (SBC), polymethyl methacrylate (PMMA), polyamide (PA), polyethylene terephthalate (PET), ethylene glycol modified polyethylene terephthalate (PETG), polycyclohexanedimethanol terephthalate (PCT), ethylene glycol modified PCT copolymer (PCTG), cyclohexanedimethanol terephthalate copolyester (PCTA), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polycarbonate Polyester (PC), cellulosics, polylactide (PLA), polybutylene terephthalate (PBAT), polybutylene succinate (PBS), polybutylene succinate adipate (PBSA), polycaprolactone (PCL), thermoplastic starch (TPS), polyvinyl alcohol (PVA), chitosan, polyhydroxyalkanoate (PHA), copolymers of ethylene methacrylic acid and zinc (Zn), sodium (Na), lithium (Li) or other metal ions, thermoplastic elastomer (TPE), styrene-isoprene-styrene copolymer (SIS), styrene-ethylene-butylene-styrene block copolymers (SEBS), styrene-ethylene-propylene-styrene copolymers (SEPS), thermoplastic olefins (TPO), thermoplastic vulcanizates (TPV), thermoplastic polybutadiene (TPB), thermoplastic polyisoprene (TPI), thermoplastic polyvinyl chloride (TPVC), thermoplastic chlorinated polyethylene (TCPE), thermoplastic polyurethane elastomers (TPU), thermoplastic polyester elastomers (TPEE), thermoplastic polyamide elastomers (TPAE), thermoplastic fluorides (TPF), thermoplastic silicone vulcanizates (TPSiV), copolymers thereof, or any combination thereof.

[0097] In addition, in the above two methods, there is no particular limitation on the laser etching process used, and laser etching can be performed using a laser commonly used in the art according to the specific structural requirements of the pattern area to be formed.

[0098] The present invention is described in more detail below in conjunction with the examples. It should be noted that these descriptions and examples are intended to facilitate the understanding of the present invention, rather than to limit the present invention. The protection scope of the present invention shall be subject to the attached claims.

[0099] Example

[0100] In the present invention, unless otherwise specified, all reagents used are commercially available products and used directly without further purification.

[0101] Test Method

[0102] In the present disclosure, the performance of the packaging bodies obtained in the following examples and comparative examples were tested. The specific test methods are described as follows.

[0103] The difference between the non-textured area's flop index and the textured area's flop index (ΔFI)

[0104] The textured area and the non-textured area in the patterned area of ​​the packaging bodies prepared in the following examples and comparative examples were measured using a multi-angle photometer MA98 produced by X-rite according to ASTM E2539 to obtain the L* values ​​of the textured area and the non-textured area, respectively. 15° , L* 110° and L* 45° , where: L* 15° Indicates the luminosity measured when the reflection direction is 15° to the normal; L* 110° Indicates the luminosity measured when the reflection direction is 110° to the normal; L* 45° Represents the luminosity measured at the normal.

[0105] Then, the non-texture area's flop index (FI) was calculated by the following formula: 非纹理区 ) and the flop index (FI) of the texture area 纹理区 ):

[0106]

[0107] The non-textured area flop index (FI 非纹理区 ) and the flop index (FI) of the texture area 纹理区 ) is ΔFI.

[0108] In the present invention, when the difference (ΔFI) between the angular flop index of the non-texture area and the angular flop index of the texture area is greater than 1.5, the visual effect of the pattern area on the package is good; when the difference (ΔFI) between the angular flop index of the non-texture area and the angular flop index of the texture area is greater than 7, the visual effect of the pattern area on the package is excellent.

[0109] Color difference (ΔE)

[0110] The color difference (ΔE) of the patterned area of ​​the packaging body prepared in the following examples and comparative examples was measured. Specifically, after the X-rite MA9X Spectrophotometer was calibrated with a black and white plate, the spectrophotometer was placed on the non-texture area and texture area of ​​the same sample, respectively, and spectrophotometry was performed to obtain the L, a and b values ​​at different angles on the non-texture area and texture area of ​​different test samples.

[0111] Color difference (ΔE) can be calculated using the CIELAB color difference formula shown below:

[0112] ΔE=(ΔL 2 +Δa 2 +Δb 2 ) 0.5

[0113] According to the above formula, the 15° color difference (ΔE15), 75° color difference (ΔE75) and 110° color difference (ΔE110) at different reflection angles (15°, 75° and 110°) on the pattern area on the package body are measured and calculated.

[0114] In the present invention, when the chromatic aberration of 15° (ΔE15), 75° (ΔE75) and 110° (ΔE110) are all greater than 2.5, the visual effect of the pattern area on the package is good; when the chromatic aberration of 15° (ΔE15), 75° (ΔE75) and 110° (ΔE110) are all greater than 10, the visual effect of the pattern area on the package is excellent.

[0115] Example 1

[0116] The surface of a mold for polymer material injection molding is polished, and after the polishing, a pattern area is engraved on the surface of the mold by laser.

[0117] The processed mold is installed on an injection molding machine (manufacturer Demag DEMAG model 500t), and the raw materials for forming the packaging body are respectively injected into the injection molding machine, and injection molding is performed according to a conventional process to obtain the packaging body. The raw materials for forming the packaging body include: 48.9 parts by weight of virgin resin Sabic PP FPC 70T produced by SABIC Innovative Plastics China Co., Ltd., 48.9 parts by weight of recycled resin GER M6 produced by Jiangxi Green Recycling Industry Co., Ltd., and 2.2 parts by weight of masterbatch Shinemax M110-GNA-PP. The masterbatch Shinemax M110-GNA-PP contains metal flakes.

[0118] In addition, according to measurement and statistics, the texture depth of the texture area is 65μm; the non-texture depth of the non-texture area is 0μm; the depth difference between the non-texture area and the texture area is 65μm; and the extreme depth difference between the non-texture area and the texture area is 65μm.

[0119] The surface of the packaging body obtained in Example 1 was tested according to the method described in detail above, and the results are shown in Table 1 below.

[0120] Example 2

[0121] The packaging body was manufactured in a similar manner to Example 1, except that the raw materials used to form the packaging body included 47 parts by weight of virgin resin Sabic PP FPC70T produced by SABIC Innovative Plastics China Ltd., 47 parts by weight of recycled resin GER M6 produced by Jiangxi Green Recycling Industry Co., Ltd., and 6 parts by weight of masterbatch Shinemax M110-GNA-PP. The masterbatch Shinemax M110-GNA-PP contained metal flakes.

[0122] The surface of the packaging body obtained in Example 2 was tested according to the method described in detail above, and the results are shown in Table 1 below.

[0123] Example 3

[0124] The packaging body was manufactured in a similar manner to Example 1, except that the raw materials used to form the packaging body included 48 parts by weight of virgin resin Sabic PP FPC70T produced by SABIC Innovative Plastics China Ltd., 48 parts by weight of recycled resin GER M6 produced by Jiangxi Green Recycling Industry Co., Ltd., and 4 parts by weight of masterbatch Shinemax M140-GN0448 PP produced by Shinemax Corporation. The masterbatch Shinemax M110-GNA-PP contained pearlescent particles.

[0125] The surface of the packaging body obtained in Example 3 was tested according to the method described in detail above, and the results are shown in Table 1 below.

[0126] Comparative Example 1

[0127] The packaging body was manufactured in a similar manner to Example 1, except that the raw materials used to form the packaging body included 50 parts by weight of virgin resin Sabic PP FPC70T produced by SABIC Innovative Plastics China Ltd. and 50 parts by weight of recycled resin GER M6 produced by Jiangxi Green Recycling Industry Co., Ltd.

[0128] The surface of the package obtained in Comparative Example 1 was tested according to the method described in detail above, and the results are shown in Table 1 below.

[0129] Table 1 Visibility test results of the packaging bodies prepared in Examples 1-3 and Comparative Example 1

[0130]

[0131] From the results shown in Table 1 above, it can be seen that in the tests on the packaging bodies (Examples 1-3) prepared according to the technical solution of the present invention, it was found that the difference (ΔFI) between the angular flop index of the non-texture area and the angular flop index of the texture area was greater than 8.88, and the 15° color difference (ΔE15), 75° color difference (ΔE75) and 110° color difference (ΔE110) were all greater than 12.70, so the pattern areas on these packaging bodies have excellent visibility, so that the pattern areas set on the surfaces of these packaging bodies can be easily perceived by consumers.

[0132] Although specific embodiments have been shown and described in the present invention, it will be appreciated by those skilled in the art that various alternative and / or equivalent embodiments may be used to replace the specific embodiments shown and described without departing from the scope of the present invention. This application is intended to include any improvements or changes to the specific embodiments discussed in the present invention. Therefore, the present invention is limited only by the claims and their equivalents.

[0133] It will be appreciated by those skilled in the art that various modifications and changes may be made without departing from the scope of the present invention. Such modifications and changes are intended to fall within the scope of the present invention as defined by the appended claims.

Claims

1. A packaging body, wherein at least one surface of the packaging body is provided with a pattern area, wherein the pattern area includes a non-texture area and a texture area, and the material of the packaging body comprises 50-99.9%, preferably 70-99.9%, more preferably 90-99.8%, most preferably 95-99.6% of a matrix material and 0.01-50%, preferably 0.02-30%, more preferably 0.03-10%, most preferably 0.05-5% of a filler based on its total weight, wherein the matrix material is a thermoplastic material, and the filler is selected from one or more of metal flakes and pearlescent particles.

2. The packaging body according to claim 1, wherein the thermoplastic material is selected from polypropylene (PP), chlorinated polypropylene (CPP), high density polyethylene (HDPE), ultra high molecular weight polyethylene (UHMWPE), medium density polyethylene (MDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), chlorinated polyethylene (CPE), ethylene propylene copolymer, polymethylpentene (PMP), cyclic olefin copolymer (COC), polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC), polyvinyl dichloride (PVDC), polystyrene (PS), propylene Acrylonitrile styrene (AS), acrylonitrile butadiene styrene (ABS), polyacrylonitrile (PAN), styrene butadiene copolymer (SBC), polymethyl methacrylate (PMMA), polyamide (PA), polyethylene terephthalate (PET), ethylene glycol modified polyethylene terephthalate (PETG), polycyclohexanedimethanol terephthalate (PCT), ethylene glycol modified PCT copolymer (PCTG), cyclohexanedimethanol terephthalate copolyester (PCTA), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polycarbonate ( PC), cellulose plastics, polylactide (PLA), polybutylene terephthalate (PBAT), polybutylene succinate (PBS), polybutylene succinate adipate (PBSA), polycaprolactone (PCL), thermoplastic starch (TPS), polyvinyl alcohol (PVA), chitosan, polyhydroxyalkanoate (PHA), copolymers of ethylene methacrylic acid and zinc (Zn), sodium (Na), lithium (Li) or other metal ions, thermoplastic elastomers (TPE), styrene-isoprene-styrene copolymers (SIS), styrene-ethylene-butylene-styrene intercalation Segment copolymers (SEBS), styrene-ethylene-propylene-styrene copolymers (SEPS), thermoplastic olefins (TPO), thermoplastic vulcanizates (TPV), thermoplastic polybutadiene (TPB), thermoplastic polyisoprene (TPI), thermoplastic polyvinyl chloride (TPVC), thermoplastic chlorinated polyethylene (TCPE), thermoplastic polyurethane elastomers (TPU), thermoplastic polyester elastomers (TPEE), thermoplastic polyamide elastomers (TPAE), thermoplastic fluoride (TPF), thermoplastic silicone vulcanizate (TPSiV), copolymers thereof, or any combination thereof.

3. The package according to claim 1, wherein the thermoplastic material is virgin resin, recycled resin or a mixture thereof.

4. The package according to claim 1, wherein: IA231469C The average maximum diameter of the metal flakes is 1 μm to 100 μm, preferably 3 μm to 50 μm, more preferably 5 μm to 30 μm, most preferably 7 μm to 25 μm; and / or The average thickness of the metal flakes is 0.01 μm to 10 μm, preferably 0.05 μm to 1 μm, more preferably 0.10 μm to 0.50 μm, and most preferably 0.15 μm to 0.35 μm; and / or The aspect ratio of the average diameter to the average thickness of the metal flakes is 3 to 1,000, preferably 5 to 500, more preferably 10 to 200, most preferably 30 to 100.

5. The package according to claim 1, wherein the metal flakes comprise a metal and / or an oxide thereof, wherein the metal is selected from the group consisting of aluminum, copper, zinc, silver, gold, palladium, chromium, and any combination and / or alloy thereof.

6. The packaging body according to claim 5, wherein the metal foil comprises a core and an organic coating outside the core, wherein the core comprises the metal and / or its oxide, and the organic coating comprises silicone, PE wax, PP wax, styrene-maleic anhydride copolymer, terpene resin, stearate, mineral oil, siloxane or any combination thereof. 7 . The package according to claim 1 , wherein the pearlescent particles are selected from one or more of mica flakes, glass fibers, silica particles, and alumina particles.

8. The packaging body according to claim 1, wherein the material of the packaging body further comprises 0.02% to 15%, preferably 0.1% to 10%, more preferably 0.2% to 2%, and even more preferably 0.2% to 1% of a colorant based on the total weight thereof.

9. The package according to claim 1, wherein the textured area has a regular or irregular shape and is surrounded and filled by the non-textured area, wherein the total area of ​​the textured area accounts for 10-30% of the total area of ​​the patterned area.

10. The package according to claim 9, wherein the textured area having a regular or irregular shape is arranged to form a pattern selected from one or more of text, numbers, symbols, Braille and schematic diagrams.

11. The package according to claim 1, wherein the non-texture area has a regular or irregular shape and is surrounded and filled by the texture area, wherein the total area of ​​the texture area accounts for 30-98% of the total area of ​​the pattern area.

12. The package of claim 11, wherein the non-textured area having a regular or irregular shape is arranged to form a pattern of one or more IA231469C selected from text, numbers, symbols, Braille and schematic diagrams.

13. A packaging body according to claim 1, wherein the texture area includes a linear texture area with a regular or irregular shape and is surrounded and filled by the non-texture area, wherein the line width of the linear non-texture area is greater than or equal to 10 μm, and the total area of ​​the texture area accounts for 0.5-10% of the total area of ​​the pattern area.

14. The packaging body according to claim 13, wherein the linear textured areas having regular or irregular shapes are arranged to form one or more patterns selected from the group consisting of text, numbers, symbols, Braille and schematic diagrams.

15. The packaging body according to claim 1, wherein the texture in the texture area is selected from one or more of linear texture, matte texture, dot texture, olive texture, wavy texture, woven texture, wood grain texture, ice flower texture, crushed diamond texture, cat's eye texture, cubic texture, diamond texture and leather texture. The packaging body according to claim 15 , wherein the texture of the linear texture is a cross-line texture or a parallel-line texture.

17. A packaging body according to any one of claims 1 to 16, wherein the texture depth of the texture zone is in the range of 1 μm to 1000 μm, preferably 25 μm to 150 μm, more preferably 50 μm to 100 μm, and the texture depth refers to the average distance from the highest point of the texture to the lowest point of the texture in the texture zone in a direction perpendicular to the inner surface of the box lid.

18. A packaging body according to any one of claims 1 to 16, wherein the non-texture depth of the non-texture zone is in the range of 0 μm to 50 μm, preferably 0 μm to 20 μm, and more preferably 0 μm to 5 μm, and the non-texture depth refers to the average distance from the highest point of the non-texture to the lowest point of the non-texture in the non-texture zone in a direction perpendicular to the inner surface of the box lid.

19. A packaging body according to any one of claims 1 to 16, wherein the depth difference between the non-texture area and the texture area is in the range of 0 μm to 1000 μm, preferably 25 μm to 150 μm, more preferably 50 μm to 100 μm, and the depth difference between the non-texture area and the texture area refers to the difference between the average height of the non-texture area and the average height of the texture area.

20. The packaging body according to any one of claims 1 to 16, wherein the limiting depth difference between the non-textured area and the textured area is in the range of 0 μm to 1000 μm, preferably 25 μm to 150 μm, more preferably 50 μm to 100 μm, and the limiting depth difference between the non-textured area and the textured area is IA231469C It refers to the average distance between the highest point in the non-texture area and the highest point in the texture area, or it refers to the average distance between the lowest point in the non-texture area and the lowest point in the texture area.

21. The packaging body according to any one of claims 1 to 16, which is a packaging box.

22. A method for preparing a packaging body according to any one of claims 1 to 21, the method comprising: mixing the thermoplastic material and the filler to obtain a material mixture; Using laser to etch a pattern area on at least a portion of the surface of the mold, wherein the pattern area includes a non-texture area and a texture area; and The packaging body is produced from the material mixture by injection molding using a laser-etched mold.

23. A method for preparing a packaging body according to any one of claims 1 to 21, the method comprising: mixing the thermoplastic material and the filler to obtain a material mixture; Preparing a semi-finished packaging product from the material mixture by injection molding; and A laser is used to etch a pattern area on at least a portion of the surface of the semi-finished packaging body, wherein the pattern area includes a non-texture area and a texture area, so as to prepare the packaging body.

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