Package

Abstract

The utility model relates to a packaging body. The packaging body comprises at least one packaging unit and a laminated material, the plastic film is wrapped on the packaging unit, and the laminated material is wrapped outside the packaging unit. Wherein the laminated material comprises a base material and a plastic layer, the softening temperature of the plastic layer is lower than the softening temperature of the plastic film, and each softening temperature is measured according to ASTM D1525. One part of the laminated material is overlapped on the other part of the laminated material, and the part of the laminated material is adhered to the other part of the laminated material through the plastic layer.

Description

TECHNICAL FIELD

[0001] The utility model relates to a package body which has one or more package units. BACKGROUND

[0002] Some products are sold in individual small packages (e.g. cigarettes, soap), but in order to increase efficiency during transportation, multiple individual small packages are re-packaged into one unit for shipping (e.g. in a carton form). SUMMARY

[0003] In order to fix these individual small packages and make the whole package waterproof, moisture-proof and oil-proof for transportation and storage, the individual small packages are usually put into a paper box and then covered with a plastic film. However, this process requires two-stage operation procedures, and the two stages are completed by different equipment, thus consuming considerable time, labor and material costs.

[0004] To this end, the utility model provides a package body which comprises at least one package unit and a laminate. A plastic film is wrapped on the package unit, and the laminate is wrapped outside the package unit. The laminate has a base material and a plastic layer, and the softening temperature of the plastic layer is lower than that of the plastic film. The softening temperatures are measured according to ASTM D1525. A part of the laminate overlaps another part of the laminate, and the part of the laminate is adhered to the other part of the laminate through the plastic layer.

[0005] In an embodiment of the utility model, the plastic film on the package unit comprises polyethylene, polypropylene, polyvinyl chloride, polylactic acid, ethylene-vinyl acetate copolymer, acrylic copolymer resin, polyester or polyamide.

[0006] In an embodiment of the utility model, the plastic layer of the laminate comprises polyethylene, polypropylene, polyvinyl chloride, polylactic acid, ethylene-vinyl acetate copolymer, acrylic copolymer resin, polyester or polyamide.

[0007] In an embodiment of the utility model, the softening temperature of the plastic layer in the laminate is in the range of 50-150℃, and the softening temperature of the plastic film is in the range of 150-200℃.

[0008] In an embodiment of the utility model, the plastic film on the package unit is a biaxially oriented polypropylene film, and the plastic layer of the laminate comprises polyethylene.

[0009] In an embodiment of the utility model, the plastic layer of the laminate has high-density polyethylene and low-density polyethylene.

[0010] In an embodiment of the present application, the base material of the laminated material comprises paper, wood chips, metal, carbon fiber, aramid fiber, silicon carbide fiber, aluminum oxide fiber, boron fiber, tungsten carbide fiber, glass fiber, or a combination thereof.

[0011] In an embodiment of the present application, the laminated material comprises a printing layer, which is located between the base material and the plastic layer or on the side of the base material away from the plastic layer.

[0012] In an embodiment of the present application, the laminated material has at least one of the following properties:

[0013] (a) The overall basis weight of the laminated material is 35.0-150.0 g / m 2 ;

[0014] (b) The overall thickness of the laminated material is 0.05-0.20 mm according to the measurement method of GB / T24218.2-2009;

[0015] (c) The coating amount of the plastic layer in the laminated material is 5.0-130.0 g / m 2 ;

[0016] (d) The brightness of the laminated material is ≥80.0% according to the measurement method of GB7974;

[0017] (e) The fluorescent brightness of the laminated material is ≤1.0% according to the measurement method of GB7974;

[0018] (f) The longitudinal tensile strength of the laminated material is 3.0-5.0 kN / m according to the measurement method of GB / T12914;

[0019] (g) The transverse tear resistance of the laminated material is 280.0-350 mN according to the measurement method of GB / T455;

[0020] (h) The smoothness of the laminated material is 300.0-350 s according to the measurement method of GB / T456;

[0021] (i) The ash content of the laminated material is ≤7.0% according to the measurement method of GB / T742;

[0022] (j) The moisture content of the laminated material is 4-8% according to the measurement method of GB / T462;

[0023] (k) The dust content of the laminated material is ≤20 pieces / m 2 of dust with a size of 0.2-1.5 mm 2 and ≥1.5 mm 2The black dust is 0 / m 2 ; and

[0024] (l) According to the measurement method of GB / T36392 Appendix A, the adhesion between the plastic layer and the substrate is ≥85.0%.

[0025] In an embodiment of the present application, the laminated material has all the properties of (a)-(l).

[0026] Since the packaging body of the present application has the technical feature that the softening temperature of the plastic layer is lower than that of the plastic film, when the laminated material is heat sealed to form the packaging body, the plastic layer of the laminated material can be heated at a temperature at which it softens but the plastic film of the packaging unit does not soften, achieving the effect of adhering the laminated material but not damaging the plastic film on the packaging unit. In other words, the packaging body of the present application can be formed simply by packaging the packaging unit with the laminated material, so in some embodiments, it is not necessary to first pack the packaging unit into a carton and then cover the carton with a plastic film. The packaging body with waterproof, moisture-proof and oil-proof functions can be completed by the properties of the laminated material itself.

[0027] In summary, the present application provides a packaging body that can fix multiple independent small packages (hereinafter referred to as packaging units) without using a carton and a plastic film outside, and still has the functions of waterproofing, moisture-proofing and oil-proofing. Furthermore, the packaging body can be completed by a single device without a two-stage operation process, thereby reducing the cost of purchasing manufacturing equipment, labor costs and production time costs. On the other hand, compared with packaging using a carton and a plastic film, the packaging body of the present application not only reduces material costs, but also reduces transportation costs by reducing the overall weight.

[0028] It is worth noting that in order to allow the packaging unit itself to also have certain waterproof, moisture-proof and oil-proof functions for separate sales, as mentioned above, the packaging unit also has a plastic film outside. For such packaging units with a plastic film thereon, those with ordinary knowledge in the art will not use laminated material with a plastic layer (such as coated paper) as the external packaging material of the packaging unit. The reason is that it is generally believed that the plastic layer of the laminated material needs to be heated to a high temperature to produce adhesion, and at that high temperature, the plastic film on the inside of each packaging unit will soften, causing unwanted adhesion between the packaging units or between the packaging unit and the laminated material, thereby damaging the appearance integrity of the packaging unit.

[0029] However, through the technical features described in the present application, the present application overcomes the aforementioned technical bias, allowing packaging units with a plastic film thereon to be packaged using laminated material with a plastic layer, thereby expanding the possibilities of packaging bodies. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1A 、 Figure 1B 、 Figure 1C are respectively a flow chart of an exemplary preparation procedure of one of the embodiments of the packaging body, and schematic diagrams of the conditions at different stages; wherein Figure 1C may also be considered as a perspective schematic diagram drawn according to one of the embodiments of the packaging body;

[0031] Figure 1A' is a partial enlarged view of the portion within the dashed line range 1A' in Figure 1A

[0032] Figure 2 is a cross-sectional view drawn according to the laminated material in one of the embodiments of the packaging body;

[0033] Figure 3A is a cross-sectional view drawn according to the laminated material in another embodiment of the packaging body;

[0034] Figure 3B is a cross-sectional view drawn according to the laminated material in another embodiment of the packaging body;

[0035] Figure 4 is a flow chart drawn according to one of the embodiments of the preparation method of the packaging body.

[0036]

Symbol Explanation

[0037] 100: packaging body

[0038] 110: packaging unit

[0039] 111: plastic film

[0040] T 111 : plastic film softening temperature

[0041] 120: laminated material

[0042] 120a: one portion of the laminated material

[0043] 120b: another portion of the laminated material

[0044] 120c: seam line

[0045] 121: base material

[0046] 122: plastic layer

[0047] T 122 : plastic layer softening temperature

[0048] 123: printing layer

[0049] S01: step ​

[0050] S02: step

[0051] T1: first temperature DETAILED DESCRIPTION

[0052] The following disclosure describes specific examples of components and arrangements in order to simplify the present disclosure. These specific embodiments are merely intended to provide examples of the present application. It is not intended that the present application be limited to these specific embodiments. For example, if a first component is described as being formed over or on a second component, this is intended to include embodiments where the first component is formed directly on the second component as well as embodiments where the first component is formed indirectly on the second component with one or more other components formed between the first component and the second component.

[0053] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an overly literal or overly formal sense unless expressly so defined herein.

[0054] Spatially relative terms, such as "beneath", "below", "lower", "on", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0055] The term "or" as used herein is used to mean, and is used in its normal sense at least to include, at least one of a or b; both a and b; or, alternatively, neither a or b.

[0056] In the present disclosure, the recitation of a range of values is a summary representation of avoiding the need to recite all values within the range in the specification. Thus, unless specifically stated otherwise, a particular range of values recited in the specification is equivalent to the disclosure of any value within the range, as well as any smaller range of values defined by any value within the range (to the valid number of significant figures, and the next significant figure), as if each such smaller range were, individually and explicitly, written out in the specification. For example, if the specification recites "1 to 10", this is equivalent to the disclosure of "3 to 5", "2.5-6.8", etc., whether or not other values are recited.

[0057] Please refer to Figure 1A , Figure 1B ,Figure 1C . Figure 1A , Figure 1B , Figure 1C are respectively a flowchart of an exemplary preparation process of one of the embodiments of the packaging body 100, and schematic diagrams of the packaging body 100 at different stages. As shown in Figure 1A , Figure 1B , Figure 1C , the packaging body 100 is formed by laminating the at least one packaging unit 110 with the laminating material 120. In the exemplary preparation process, a plurality of packaging units 110 are placed on the laminating material 120 (as shown in Figure 1A ), and then the laminating material 120 is folded to cover the packaging units 110 and to overlap a portion 120a of the laminating material 120 on another portion 120b of the laminating material 120, and then a certain temperature is applied to the laminating material 120 (to be further described below) to adhere the portion 120a of the laminating material 120 to the portion 120b of the laminating material 120 (as shown in Figure 1B , Figure 1C ), thereby obtaining the packaging body 100. Since the laminating material 120 is adhered to each other to form the packaging body 100, in some embodiments, the packaging body 100 has a seam line 120c as shown in Figure 1C .

[0058] The shape or item of the packaging unit 110 is not particularly limited, which can be, for example, a cuboid cigarette box, a boxed soap, etc. As shown in the enlarged view of the packaging unit 110 in Figure 1A' , the packaging unit 110 is covered with a plastic film 111. Accordingly, each packaging unit 110 can also have a moisture-proof and oil-proof function, facilitating independent sale. It is worth noting that although the plastic film 111 and the laminating material 120 are both covered on the packaging unit 110, the laminating material 120 is outside the plastic film 111, i.e., compared with the plastic film 111, the laminating material 120 is farther away from the packaging unit 110.

[0059] For further illustration of the laminating material 120, please refer to Figure 2 . Figure 2 is a cross-sectional view of the laminating material 120 according to one embodiment of the packaging body 100. In this embodiment, the laminating material 120 has a base material 121 and a plastic layer 122, wherein the softening temperature T 122 of the plastic layer 122 is lower than the softening temperature T 111 of the plastic film 111. The softening temperature is measured according to ASTM D1525, i.e., the temperature at which a standard needle penetrates the surface of a test piece to a fixed depth under a fixed load.

[0060] The material of the plastic layer 122 in the laminated material 120 and the material of the plastic film 111 coated on the packaging unit 110 can comprise thermoplastic. In some embodiments, the plastic layer 122 and the plastic film 111 can comprise polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polylactic acid (PLA), ethylene-vinyl acetate copolymer (EVA), acrylic copolymer resin, polyester (e.g. polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, etc.) or polyamide (e.g. nylon-6, nylon-66, polymetaxylene adipamide, etc.). In some embodiments, the plastic film 111 coated on the packaging unit 110 can be a non-stretch film or a stretch film, for example, a biaxially stretched film stretched in both the longitudinal direction and the width direction. The plastic layer 122 and the plastic film 111 can be selected and combined according to the aforementioned "the softening temperature T 122 of the plastic film 111 is lower than the softening temperature T 111 of the plastic layer 122".

[0061] In some embodiments, the softening temperature T 122 of the plastic layer 122 in the laminated material 120 is in the range of 50-150°C, and the softening temperature T 111 of the plastic film 111 is in the range of 150-200°C (e.g. in the range of 155-200°C). For example, the plastic layer 122 in the laminated material 120 comprises polyethylene, and the plastic film 111 can be a biaxially oriented polypropylene (BOPP) film. In some embodiments, in order to adjust the softening temperature or other properties such as mechanical properties, the plastic layer 122 and the plastic film 111 can have mixed components. For example, the plastic layer 122 in the laminated material 120 has high-density polyethylene (HDPE) and low-density polyethylene (LDPE), and the plastic film 111 can be a biaxially oriented polypropylene (BOPP) film. The high-density polyethylene (HDPE) has a density of 0.941-0.965 g / m 3 , and below this range is low-density polyethylene (LDPE), for example, 0.910-0.925 g / m 3 .

[0062] In some embodiments, various additives can be added without degrading the properties of the plastic layer 122 of the laminated material 120 and the plastic film 111 that covers the packaging unit 110 to a degree that is less than the required level. For example, antioxidants, heat-resistant stabilizers, weather-resistant stabilizers, lubricants (e.g., paraffin, white oil, stearic acid, stearate), ultraviolet absorbers, organic smoothing agents, pigments, dyes, organic or inorganic particles, fillers (e.g., calcium hydroxide, talc, calcium sulfate), antistatic agents, and the like.

[0063] The base material 121 of the laminated material 120 can include paper, wood chips, metal, carbon fibers, aramid fibers, silicon carbide fibers, alumina fibers, boron fibers, tungsten carbide fibers, glass fibers, or any material that can form a film thereon. The material of the base material 121 is not limited in the present application as long as a continuous plastic layer 122 can be formed thereon and no significant damage occurs when the plastic layer 122 of the laminated material 120 is subsequently heated. In some embodiments, the base material 121 of the laminated material 120 is paper.

[0064] The laminated material 120 of the present application can be obtained by applying the raw material of the plastic layer 122 to the base material 121 by various coating methods such as blade coating, gravure roll coating, slot coating, spray coating, screen coating, and the like after the raw material is heated and melted, and then forming the plastic layer 122 by cooling and drying the raw material to obtain the laminated material 120. The temperature of the melting can be selected according to the components used, and the temperature at which the raw material can be melted to a flowable state without causing decomposition of the raw material. In some embodiments, if the plastic layer 122 of the laminated material 120 includes polyethylene, the polyethylene can be heated to a temperature of 50 to 150°C to be melted, and from the viewpoints of ease of processing and energy saving, the polyethylene can be heated to a temperature of 90 to 120°C to be melted. If the raw material of the plastic layer 122 is a mixture, the components can be mixed and then melted, or the components can be melted and then mixed. The laminated material 120 thus formed can be cut into individual sheets or wound into a roll shape after inspection and trimming of the edges for subsequent use.

[0065] In some embodiments, surface activation treatment can be performed on the adhering surface of the base material 121 of the laminated material 120 in order to improve adhesion. The surface activation treatment can include, for example, corona treatment, plasma treatment, discharge treatment (glow discharge treatment, etc.), ozone treatment, UV ozone treatment, ionizing active line treatment (ultraviolet treatment, electron beam treatment, etc.), and the like.

[0066] In some embodiments, the laminated material 120 can have a printed layer 123 formed by printing or jet printing, for example, so that the desired pattern or text such as a trademark, a pattern, a warning, a bar code, and the like can be displayed on the laminated material 120, thereby allowing the laminated material 120 or the packaging body 100 to have the desired appearance. For example, please refer to Figure 3A ,Figure 3B . Figure 3A is a cross-sectional view of the laminated material 120 in another embodiment of the packaging body 100. Figure 3B is a cross-sectional view of the laminated material 120 in another embodiment of the packaging body 100. In the embodiment shown in Figure 3A , the printing layer 123 is located on the side of the substrate 121 close to the plastic layer 122, for example, between the substrate 121 and the plastic layer 122. Since the printing layer 123 is arranged between layers, it is not easy to peel off or fall off from the laminated material 120. On the other hand, in some embodiments, the printing layer 123 can be located on the side of the substrate 121 away from the plastic layer 122, as shown in Figure 3B . If the laminated material 120 is used to form the packaging body 100 with the plastic layer 122 facing the inside of the packaging body 100, the printing layer 123 is formed on the side of the substrate 121 away from the plastic layer 122, so that the printing result is presented on the outside of the packaging body 100 for identification. In addition, if the circumstances permit, the printing layer 123 can be formed before or after the formation of the plastic layer 122. For example, in the embodiment shown in Figure 3B , the printing layer 123 can be formed before or after the formation of the plastic layer 122, while in the embodiment shown in Figure 3B , the printing layer 123 is formed first, and then the plastic layer 122 is formed.

[0067] It is worth noting that as long as the plastic layer 122 is the outermost layer of the laminated material 120, there is no particular restriction on whether the plastic layer 122 faces the inside or the outside of the packaging body 100. In some embodiments, in order to make the whole more convenient to move and process when heating and pasting the laminated material 120, the plastic layer 122 faces the inside of the packaging body 100 after the packaging body 100 is formed; in other embodiments, the plastic layer 122 faces the outside of the packaging body 100 after the packaging body 100 is formed, so that the substrate 121 is not infiltrated by oil or water, and the packaging body 100 can better maintain its appearance integrity when it encounters water or oil.

[0068] In addition, in some embodiments, the laminated material 120 has at least one of the following properties:

[0069] (a) The total basis weight of the laminated material 120 is 35.0-150.0 g / m 2 according to the measurement method of GB / T451.2, so that the whole laminated material 120 has appropriate strength to maintain the packaging body 100 while being convenient to process and having reasonable cost; preferably, the total basis weight of the laminated material 120 can be 50.0-95.0 g / m 2 , and more preferably 60.0-70.0 g / m 2 ;

[0070] (b) The overall thickness of the laminated material 120 is 0.05-0.20 mm according to the measurement method of GB / T 24218.2-2009; preferably, the overall thickness of the laminated material 120 is 0.06-0.15 mm, so that the laminated material 120 has better mechanical strength and processability;

[0071] (c) The coating weight of the plastic layer 122 in the laminated material 120 is 5.0-130.0 g / m2according to the measurement method of GB / T 36392; 2 ; preferably, the coating weight of the plastic layer 122 in the laminated material 120 is 10.0-80.0 g / m2, so that the laminated material 120 has sufficient components of the plastic layer 122 to form a more uniform plastic layer 122 to obtain better waterproof and oil-proof effects, and the best adhesion effect can be obtained at a reasonable cost; 2

[0072] (d) The brightness of the laminated material 120 is ≥80.0% according to the measurement method of GB 7974; preferably, the brightness of the laminated material 120 is ≥85.0%, so that the printed layer 123 formed on the base material 121 has a better presentation effect;

[0073] (e) The fluorescence brightness of the laminated material 120 is ≤1.0% according to the measurement method of GB 7974, that is, the laminated material 120 contains only a small amount or no fluorescent whitening agent, which can improve its safety to the human body;

[0074] (f) The longitudinal tensile strength of the laminated material 120 is 3.0-5.0 kN / m according to the measurement method of GB / T 12914; preferably, the longitudinal tensile strength of the laminated material 120 is 4.0-5.0 kN / m, so that the laminated material 120 has better mechanical strength and processability;

[0075] (g) The transverse tear of the laminated material 120 is 280.0-350 mN according to the measurement method of GB / T 455; preferably, the transverse tear of the laminated material 120 is 300.0-350 mN, so that the laminated material 120 has better mechanical strength and processability;

[0076] ​(h) The smoothness of the laminated material 120 is 300.0-350 s according to the measurement method of GB / T456; preferably, the smoothness of the laminated material 120 is 320.0-350 s to obtain a better appearance and to improve the printability and the presented printing effect;

[0077] (i) The ash content of the laminated material 120 is ≤7.0% according to the measurement method of GB / T742; preferably, the ash content of the laminated material 120 is ≤5.0%;

[0078] (j) The moisture of the laminated material 120 is 4-8% according to the measurement method of GB / T462; preferably, the moisture of the laminated material 120 can be 5-7% so that the laminated material 120 has better flatness, mechanical strength maintenance, and mildew resistance;

[0079] (k) The dustiness of the laminated material 120 is 0.2-1.5 mm 2 of dust of size ≤20 / m 2 and ≥1.5 mm 2 of black dust is 0 / m 2 to obtain a better appearance; and

[0080] (l) The degree of bonding between the plastic layer 122 and the substrate 121 is ≥85.0% according to the measurement method of GB / T36392 Appendix A; preferably, the degree of bonding between the plastic layer 122 and the substrate 121 is ≥95.0% so that the structural stability of the laminated material 120 is improved, thereby enhancing the barrier effect of moisture and oil.

[0081] In some embodiments, the laminated material 120 can have the maximum range of properties in each of the foregoing (a)-(l). In some embodiments, the laminated material 120 can have the preferred or better range of properties in at least one or even all of the foregoing (a)-(l).

[0082] The plastic layer 122 in the laminated material 120 can be softened by heating to produce adhesion. By applying a temperature to the laminated material 120 and overlapping a portion 120a of the laminated material 120 on another portion 120b of the laminated material 120, the portion 120a of the laminated material 120 can be adhered to the other portion 120b of the laminated material 120 through the plastic layer 122. Since the laminated material 120 of the packaging body 100 of the present case has the technical feature that the softening temperature T 122 of the plastic layer 122 is lower than the softening temperature T 111 of the plastic film 111, the laminated material 120 can be heated to perform, for example,Figures 1B-1C In the step of adhering a portion 120a of the laminated material 120 to another portion 120b of the laminated material 120 to form the packaging body 100, the laminated material 120 can be heated at a temperature at which the plastic layer 122 of the laminated material 120 softens but the plastic film 111 of the packaging unit 110 does not soften. At this time, even if the plastic layer 122 of the laminated material 120 and the plastic film 111 of the packaging unit 110 are heated simultaneously when the packaging body 100 is formed, only the plastic layer 122 softens and does not affect the plastic film 111, so that the laminated material 120 can be adhered to each other but the packaging unit 110 or the packaging unit 110 and the laminated material 120 are not undesirably adhered due to the softening of the plastic film 111, thereby maintaining the appearance integrity of the packaging unit 110.

[0083] In other words, by the aforementioned technical feature of "the softening temperature T 122 of the plastic film 111 is lower than the softening temperature T 111 of the plastic layer 122", the packaging unit 110 can be simply packaged by the laminated material 120, without the need to first pack the packaging unit 110 in a carton and then cover the carton with a plastic film to complete the packaging body having the functions of waterproof, moisture-proof and oil-proof. In addition, since the carton and the plastic film covering the carton are not needed, the packaging body 100 of the present application not only can reduce the material cost, but also can reduce the transportation cost by reducing the overall weight.

[0084] It should be noted that "A covers B" described herein is not limited to A completely covering B, but also includes the case where A covers part of B.

[0085] In addition, in the embodiment as shown in Figure 1C , the laminated material 120 is tightly wrapped around the inner packaging unit 110 to form the packaging body 100, that is, the packaging unit 110 cannot move in the packaging body 100. In other embodiments, the laminated material 120 is in a strip shape and is wrapped around the packaging unit 110 to form the packaging body 100, at this time the packaging unit 110 also cannot move in the packaging body 100. In other embodiments, the laminated material 120 can also form a bag shape to wrap the packaging unit 110, compared to the above two forms, at this time the packaging unit 110 has a larger range of movement in the packaging body 100.

[0086] Next, please refer to Figure 1A , Figure 1B , Figure 1C and Figure 4 . Figure 4is a flow chart according to an embodiment of the method of preparing the packaging body 100. The present disclosure also provides a method of preparing the packaging body 100, which comprises: step S01(a) folding the laminated material 120 so that the laminated material 120 covers the packaging unit 110 and a portion 120a of the laminated material 120 overlaps another portion 120b of the laminated material 120; and step S02(b) applying a first temperature T1 to the laminated material 120 so that the plastic layer 122 of the portion 120a of the laminated material 120 softens and the portion 120a of the laminated material 120 adheres to the other portion 120b of the laminated material 120 via the plastic layer 122; wherein the first temperature T1 is greater than or equal to the softening temperature T 122 of the plastic layer 122 and less than the softening temperature T 111 of the plastic film 111 of the packaging unit 110. 111 That is, T 122 > T1≥ T 122 .

[0087] It is worth mentioning that steps S01 and S02 can be performed simultaneously, i.e. the laminated material 120 is folded and the first temperature T1 is applied to the laminated material 120 at the same time, so that the time required for the preparation method can be further shortened.

[0088] In the aforementioned method of preparing the packaging body 100, since the first temperature T1 is greater than or equal to the softening temperature T 122 of the plastic layer 122, when the first temperature T1 is applied to the laminated material 120, the plastic layer 122 of the laminated material 120 softens and becomes adhesive, so that the laminated material 120 can adhere to each other to form the packaging body 100; at the same time, since the first temperature T1 is less than the softening temperature T 111 of the plastic film 111 of the packaging unit 110, when the laminated material 120 is heated at the first temperature T1, the plastic film 111 of the packaging unit 110 does not soften, so that the packaging unit 110 or the laminated material 120 does not undesirably adhere to each other, and the appearance integrity of the packaging unit 110 is maintained. Furthermore, since the laminated material 120 itself has water and oil resistant properties, the packaging unit 110 can be packaged by the laminated material 120 alone by using the preparation method, i.e. the packaging body 100 with water and oil resistant properties is formed.

[0089] Since the packaging unit 110 can be packaged by the laminated material 120 alone, in some embodiments of the present disclosure, the packaging unit 110 does not need to be first packed in a carton and then covered by a plastic film to form the packaging body 100 with water and oil resistant properties. Therefore, the aforementioned method of preparing the packaging body 100 can be completed by a single device without the need for a carton packing device and a film wrapping machine to cover the plastic film on the carton, so that the purchase cost of manufacturing equipment, labor cost and production time cost are reduced.

[0090] In some embodiments, the method of manufacturing the package 100 can be performed by a carton filling apparatus with simple modifications, without using a film wrapping machine. The film wrapping machine has a film supply mechanism (e.g. film guide rollers), a folding mechanism (e.g. with folding plates), a heating element, and a specific apparatus can be, for example, a cigarette overwrap film wrapping machine, model PM-818, available from Chi Mei Enterprise Co. Ltd. The carton filling apparatus has a carton folding mechanism (e.g. with folding plates), a stacking filling mechanism (e.g. push rods or push plates), and a specific apparatus can be, for example, a cigarette carton packing machine, model HLP-2, available from Molins. The simple modification of the carton filling apparatus includes, for example, adding a heating element to heat the laminated material 120, so that the carton filling apparatus can apply the first temperature T1 to at least a portion of the laminated material 120 when folding the laminated material 120, thereby causing a portion 120a of the laminated material 120 to adhere to another portion 120b of the laminated material 120 through the softened plastic layer 122. In some embodiments, if a carton filling apparatus already has the functions of folding the laminated material 120, applying the first temperature T1 to the laminated material 120, and covering the package units 110 with the laminated material 120, then the simple modification of the carton filling apparatus can not be necessary.

[0091] In other embodiments, the method of manufacturing the package 100 can be performed by a film wrapping machine with simple modifications, without using a carton filling apparatus. The simple modification of the film wrapping machine includes, for example, adding a stacking filling mechanism (e.g. push rods or push plates). The stacking filling mechanism is used to stack the package units 110 to a desired number to be covered by the laminated material 120, so that the laminated material 120 can be subsequently folded by a folding mechanism, and the first temperature T1 can be applied to the laminated material 120 by a heating element, thereby forming the package 100 containing the desired number of package units 110. In some embodiments, if a film wrapping machine already has the functions of stacking the package units 110, folding the laminated material 120, applying the first temperature T1 to the laminated material 120, and covering the package units 110 with the laminated material 120, then the simple modification of the film wrapping machine can not be necessary.

[0092] In some embodiments, as mentioned above, the softening temperature T 122 In the range of 50-150 °C, the softening temperature T 111In the range of 150-200 °C (e.g. in the range of 155-200 °C). For example, the plastic layer 122 in the laminate 120 comprises polyethylene, and the plastic film 111 is a biaxially oriented polypropylene (BOPP) film. Or for example, the plastic layer 122 in the laminate 120 has high density polyethylene (HDPE) and low density polyethylene (LDPE), and the plastic film 111 can be a biaxially oriented polypropylene (BOPP) film. In these embodiments, the first temperature T1 can be in the range of 60-150 °C, for example, can be in the range of 100-120 °C, so that there is a better processing speed under a suitable energy consumption.

[0093] In some embodiments, whether the preparation method of the package 100 is performed by a carton filling device or a film wrapping machine, in step S01, the laminate 120 can enter the carton filling device or the film wrapping device in a single discrete form or a continuous form of a roll.

[0094] In addition, the various laminates 120 described above can form the package 100 through the preparation method of the package 100.

[0095] In summary, the present application provides the following creations:

[0096] Aspect 1:

[0097] A package, comprising:

[0098] a packaging unit, a plastic film wrapped on the packaging unit; and

[0099] a laminate wrapped outside the packaging unit;

[0100] wherein the laminate has a substrate and a plastic layer, the plastic layer has a softening temperature lower than that of the plastic film, and each of the softening temperatures is measured according to ASTM D1525;

[0101] a portion of the laminate overlaps another portion of the laminate, and the portion of the laminate is adhered to the other portion of the laminate through the plastic layer.

[0102] Aspect 2:

[0103] The package of Aspect 1, wherein the plastic film on the packaging unit comprises polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polylactic acid (PLA), ethylene-vinyl acetate copolymer (EVA), acrylic copolymer resin, polyester, or polyamide.

[0104] Aspect 3:

[0105] The package of state 1, wherein the plastic layer of the laminated material comprises polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polylactic acid (PLA), ethylene-vinyl acetate copolymer (EVA), acrylic copolymer resin, polyester or polyamide.

[0106] State 4:

[0107] The package of state 1, wherein the softening temperature of the plastic layer of the laminated material is in the range of 50-150°C, and the softening temperature of the plastic film is in the range of 150-200°C.

[0108] State 5:

[0109] The package of state 4, wherein the plastic film on the packaging unit is a biaxially oriented polypropylene (BOPP) film, and the plastic layer of the laminated material comprises polyethylene.

[0110] State 6:

[0111] The package of state 5, wherein the plastic layer of the laminated material comprises high-density polyethylene (HDPE) and low-density polyethylene (LDPE).

[0112] State 7:

[0113] The package of state 1, wherein the substrate of the laminated material comprises paper, wood chips, metal, carbon fiber, aramid fiber, silicon carbide fiber, alumina fiber, boron fiber, tungsten carbide fiber, glass fiber or a combination thereof.

[0114] State 8:

[0115] The package of state 1, wherein the laminated material comprises a printing layer, which is located between the substrate and the plastic layer or on the side of the substrate away from the plastic layer.

[0116] State 9:

[0117] The package of state 1, wherein the laminated material has at least one of the following properties:

[0118] (a) The overall basis weight of the laminated material is 35.0-150.0 g / m 2 ;

[0119] (b) The overall thickness of the laminated material is 0.05-0.20 mm according to GB / T 24218.2-2009;

[0120] (c) The coated amount of the plastic layer in the laminate is 5.0-130.0 g / m2 according to the measurement method of GB / T36392. 2 ;

[0121] (d) The brightness of the laminate is ≥ 80.0% according to the measurement method of GB7974;

[0122] (e) The fluorescent brightness of the laminate is ≤ 1.0% according to the measurement method of GB7974;

[0123] (f) The longitudinal tensile strength of the laminate is 3.0-5.0 kN / m according to the measurement method of GB / T12914;

[0124] (g) The transverse tearability of the laminate is 280.0-350 mN according to the measurement method of GB / T455;

[0125] (h) The smoothness of the laminate is 300.0-350 s according to the measurement method of GB / T456;

[0126] (i) The ash content of the laminate is ≤ 7.0% according to the measurement method of GB / T742;

[0127] (j) The moisture of the laminate is 4-8% according to the measurement method of GB / T462;

[0128] (k) The dust content of the laminate, 0.2-1.5 mm size dust is ≤ 20 pieces / m and ≥ 1.5 mm black dust is 0 piece / m according to the measurement method of GB / T1541; 2 2 2 2 ; and

[0129] (l) The adhesion between the plastic layer and the substrate is ≥ 85.0% according to the measurement method of GB / T36392 Appendix A.

[0130] State 10:

[0131] The packaging body as described in State 9, wherein the laminate has all the properties of (a)-(l).

[0132] State 11:

[0133] The present application also provides a method for preparing the packaging body as described in State 1, comprising the following steps:

[0134] (a) folding the laminate so that the laminate covers the packaging unit and the part of the laminate overlaps the other part of the laminate; and

[0135] ​​​(b) applying a first temperature to the laminated material to soften the plastic layer of the portion of the laminated material, thereby allowing the portion of the laminated material to adhere to the other portion of the laminated material through the plastic layer; wherein the first temperature is greater than or equal to a softening temperature of the plastic layer and less than a softening temperature of the plastic film of the packaging unit.

[0136] Aspect 12:

[0137] The method of manufacturing of Aspect 11, wherein the method of manufacturing is performed with a carton filling apparatus, the carton filling apparatus further comprising a heating member to apply the first temperature to the laminated material.

[0138] Aspect 13:

[0139] The method of manufacturing of Aspect 11, wherein the method of manufacturing is performed with a film wrapping machine, the film wrapping machine comprising a stack filling mechanism to stack the packaging units.

[0140] Aspect 14:

[0141] The method of manufacturing of Aspect 12 or 13, wherein in the (a) step, the laminated material is fed to the carton filling apparatus or the film wrapping apparatus in a single discrete form or a continuous form of a roll.

[0142] Aspect 15:

[0143] The method of manufacturing of Aspect 11, wherein the softening temperature of the plastic layer of the laminated material is in a range of 50-150 °C and the softening temperature of the plastic film is in a range of 150-200 °C.

[0144] Aspect 16:

[0145] The method of manufacturing of Aspect 15, wherein the plastic film on the packaging unit is a biaxially oriented polypropylene (BOPP) film and the plastic layer of the laminated material comprises polyethylene.

[0146] Aspect 17:

[0147] The method of manufacturing of Aspect 16, wherein the plastic layer of the laminated material comprises high-density polyethylene (HDPE) and low-density polyethylene (LDPE).

[0148] Aspect 18:

[0149] The method of manufacturing of Aspect 15, wherein the first temperature is in a range of 60-150 °C.

[0150] Aspect 19:

[0151] The preparation method as claimed in claim 11, wherein the laminate comprises a printing layer, which is located between the substrate and the plastic layer or on a side of the substrate away from the plastic layer.

[0152] Aspect 20:

[0153] The preparation method as claimed in claim 11, wherein the laminate has at least one of the following properties:

[0154] (a) the overall basis weight of the laminate is 35.0-150.0 g / m 2 ;

[0155] (b) the overall thickness of the laminate is 0.05-0.20 mm according to the measurement method of GB / T 24218.2-2009;

[0156] (c) the coating amount of the plastic layer in the laminate is 5.0-130.0 g / m 2 ;

[0157] (d) the brightness of the laminate is ≥ 80.0% according to the measurement method of GB 7974;

[0158] (e) the fluorescent brightness of the laminate is ≤ 1.0% according to the measurement method of GB 7974;

[0159] (f) the longitudinal tensile strength of the laminate is 3.0-5.0 kN / m according to the measurement method of GB / T 12914;

[0160] (g) the cross-directional tear resistance of the laminate is 280.0-350 mN according to the measurement method of GB / T 455;

[0161] (h) the smoothness of the laminate is 300.0-350 s according to the measurement method of GB / T 456;

[0162] (i) the ash content of the laminate is ≤ 7.0% according to the measurement method of GB / T 742;

[0163] (j) the moisture content of the laminate is 4-8% according to the measurement method of GB / T 462;

[0164] (k) the dust content of the laminate, 0.2-1.5 mm 2 sized dust is ≤ 20 pieces / m 2 and black dust ≥ 1.5 mm 2 is 0 pieces / m 2 ; and

[0165] (l) The adhesion between the plastic layer and the substrate is ≥ 85.0% according to the measurement method of GB / T36392 Appendix A.

[0166] Aspect 21 :

[0167] The preparation method of aspect 20, wherein the laminate has all the properties of (a)-(l).

[0168] The features of the above-mentioned embodiments are conducive to those skilled in the art to understand the utility model. Those skilled in the art should understand that other structures or preparation methods can be designed and changed on the basis of the utility model to achieve the same purpose as the above-mentioned embodiments. Those skilled in the art should also understand that these equivalent replacements do not deviate from the spirit and scope of the utility model, and can be changed, replaced or modified without deviating from the spirit and scope of the utility model.

Claims

1. A package, characterized in that A packaging unit, a plastic film coated on the packaging unit; and A laminated material coated on the packaging unit; Wherein the laminated material has a substrate and a plastic layer, the softening temperature of the plastic layer is lower than the softening temperature of the plastic film, each of the softening temperatures is measured according to ASTM D1525; A portion of the laminated material overlaps another portion of the laminated material, the portion of the laminated material is adhered to the other portion of the laminated material through the plastic layer. The softening temperature of the plastic layer in the laminated material is in the range of 50-150℃, the softening temperature of the plastic film is in the range of 150-200℃.

2. The package of claim 1, wherein The laminated material comprises a printing layer, the printing layer is located between the substrate and the plastic layer or is located on the side of the substrate away from the plastic layer.

3. The package of claim 1, wherein The laminated material has at least one of the following properties:

4. The package of claim 1, wherein (b) The overall thickness of the laminated material is 0.05-0.20 mm according to the measurement method of GB / T24218.2-2009; (a) The entire basis weight of the laminate is 35.0-150.0 g / m2 according to the measurement method of GB / T451.2 2 ; (d) The brightness of the laminated material is ≥80.0% according to the measurement method of GB7974; (c) The coated amount of the plastic layer in the laminated material is 5.0-130.0 g / m2 according to the measuring method of GB / T36392 2 ; (e) The fluorescent brightness of the laminated material is ≤1.0% according to the measurement method of GB7974; (f) The longitudinal tensile strength of the laminated material is 3.0-5.0 kN / m according to the measurement method of GB / T12914; (g) The transverse tear degree of the laminated material is 280.0-350 mN according to the measurement method of GB / T455; (h) The smoothness of the laminated material is 300.0-350 s according to the measurement method of GB / T456; (i) The ash content of the laminated material is ≤7.0% according to the measurement method of GB / T742; (j) The moisture content of the laminated material is 4-8% according to the measurement method of GB / T462; and (k) the dust degree of the laminated material, 0.2-1.5 mm according to the measuring method of GB / T 1541 2 ≤ 20 pieces / m 2 and ≥ 1.5 mm2black dust is 0 pieces / m 2 ; (l) The adhesion between the plastic layer and the substrate is ≥85.0% according to the measurement method of GB / T36392 Appendix A. The laminated material has all of the properties of (a)-(l).

5. The package of claim 4, wherein ​

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