CN217347048U

CN217347048U - Composite sheet and suitcase

Info

Publication number: CN217347048U
Application number: CN202123372535.6U
Authority: CN
Inventors: 樊平燕; 丁昌杰; 石清云; 于惠博
Original assignee: Qingdao Zhongji Winning Composite Technology Co ltd
Current assignee: Qingdao Zhongji Winning Composite Technology Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-09-02
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses a composite sheet and suitcase, the composite sheet includes base plate layer, decorative layer and inoxidizing coating. Wherein, the decorative layer sets up in base plate layer upside, and the inoxidizing coating sets up in the decorative layer upside. The decorative layer is designed as a porous structure, the whole of which is filled with an adhesive medium. And the decorative layer and the substrate layer and the protective layer are connected through bonding media. According to the utility model discloses a composite sheet, composite sheet adopt hot-pressing to form, possess fabulous impact resistance, can provide the impact property of superhigh intensity for the suitcase, and the face can carry out all kinds of decorations according to the demand. The production process is hot-melt composite production, volatile materials such as adhesives and the like are not used in the composite process, the production working condition is environment-friendly, and the plate is a thermoplastic material and can be recycled.

Description

Composite sheet and suitcase

Technical Field

The utility model relates to a combined material technical field particularly relates to a composite sheet and suitcase.

Background

Most of the currently marketed luggage cases are made of PC (Polycarbonate) or ABS (Acrylonitrile butadiene Styrene copolymers), have certain impact resistance and rigidity, but the impact resistance and the rigidity are not enough to meet application scenes of various high-strength requirements, and the PC or ABS material has single surface decoration, so that the luggage cases cannot be well provided with different choices. In addition, the common plate production mostly needs to use an adhesive for bonding, so that the pollution is large, the labor environment is not good, and the formaldehyde residue is easy to cause.

Accordingly, there is a need for a composite panel for luggage that at least partially addresses the above problems.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.

In order to solve the above problem at least partially, the utility model provides a composite board, include:

a substrate layer;

the decorative layer is arranged on the upper side of the substrate layer;

the protective layer is arranged on the upper side of the decorative layer;

the decorative layer is of a porous structure, the whole decorative layer is filled with bonding media, and the decorative layer and the substrate layer and the protective layer are connected through the bonding media.

Optionally, the substrate layer comprises at least two stacked layers of continuous fiber reinforced thermoplastic composite sheets.

Optionally, the at least two layers of continuous fiber reinforced thermoplastic composite sheet comprise a first sheet and a second sheet, wherein the direction of extension of the continuous fibers in the first sheet and the direction of extension of the continuous fibers in the second sheet are different.

Optionally, the substrate layer is selected from one of the following arrangements:

at least two first sheets are stacked;

the first sheet material and the second sheet material are alternately stacked along the direction from top to bottom;

the substrate layer comprises at least one stacking unit, and the stacking unit is arranged in a mode of sequentially arranging a first sheet, a second sheet and a first sheet from top to bottom.

Optionally, the direction of extension of the continuous fibers in the first sheet is perpendicular to the direction of extension of the continuous fibers in the second sheet.

Optionally, the protective layer is configured as an integrally formed two-layer structure, and includes a scratch-resistant layer and a connection layer, the scratch-resistant layer is located on an upper side of the connection layer, the connection layer is used for forming a connection with the bonding medium, and the connection layer is made of a material that is completely compatible or partially compatible with the bonding medium.

Optionally, the fibers in the substrate layer and/or the decorative layer are selected from one of glass fibers, carbon fibers, basalt fibers and aramid fibers.

Optionally, the composite panel is formed using a hot press process.

Optionally, the adhesive medium is present separately as a medium layer between the decorative layer and the protective layer before hot pressing and is impregnated into the decorative layer during hot pressing.

According to the utility model discloses a composite sheet adopts hot-pressing to form, possess fabulous impact resistance, can provide the impact property of superhigh intensity for the suitcase, and the face can carry out all kinds of decorations according to the demand. The production process is hot-melt composite production, volatile materials such as adhesive and the like are not generated in the composite process, the production working condition is environment-friendly, and the plate is a thermoplastic material and can be recycled

According to a second aspect of the present invention, there is provided a luggage case comprising the above-mentioned composite board.

According to the utility model discloses a suitcase can play with above-mentioned first aspect the composite board mutually similar technological effect.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles of the invention.

In the drawings:

fig. 1 is a schematic structural view of a composite panel according to a preferred embodiment of the present invention.

Description of the reference numerals:

110: substrate layer

111: first sheet

112: second sheet material

120: decorative layer

130: protective layer

140: adhesive medium layer

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

In the following description, a detailed description will be given for a thorough understanding of the present invention. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.

It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Ordinal words such as "first" and "second" are referred to in this application as labels only, and do not have any other meanings, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".

It is to be understood that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and the like are used herein for descriptive purposes and not limitation.

Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings.

Referring to fig. 1, the present invention provides a composite board 100 for a luggage case, which includes a substrate layer 110, a decoration layer 120 and a protection layer 130. The decoration layer 120 is disposed on the substrate layer 110, and the protection layer 130 is disposed on the decoration layer 120. Decorative layer 120 is formed as a porous structure, the entirety of which is filled with an adhesive medium. And the decorative layer 120 and the substrate layer 110 and the decorative layer 120 and the protective layer 130 are connected through bonding media.

In other words, the finished composite board 100 is substantially composed of three layers, and the bonding medium permeates between the three layers, so as to connect the three layers into a whole.

In a preferred embodiment, composite panel 100 is made by hot press lamination. The hot-pressing compounding process can adopt the following parameters: the temperature is 180-220 ℃, the speed is 16m/min, and the pressure of the press roll is 2-6 bar.

Prior to hot pressing, in addition to the three-layer structure described above, the bonding medium is in the form of a bonding medium layer 140. I.e., composite panel 100 is a four-layer structure prior to hot pressing. Wherein, the adhesive medium layer 140 exists between the decoration layer 120 and the protective layer 130.

During the hot pressing process, the bonding medium layer 140 melts and dips into the decorative layer 120, so that the decorative layer 120 is entirely filled with the bonding medium. Illustratively, the adhesive medium layer 140 may be a transparent or transparent thermoplastic material, such as a polyolefin film. Decorative layer 120 may be a decorative and void-containing material selected to provide texture while facilitating adequate infiltration of the thermoplastic resin. For example, fiber mats such as glass fiber mats, basalt fiber mats, and carbon fiber mats, or fiber cloths such as hemp cloths, gauze, and carbon cloths. Preferably, the decoration layer 120 is made of glass fiber felt.

Moreover, the decorative layer 120 and the substrate layer 110 and the decorative layer 120 and the protective layer 130 are connected by adhesive media. No separate bonding medium layer 140 is present in the final finished composite panel 100. Therefore, the whole bonding of the plates is realized without using special adhesive, and the process is simple and more environment-friendly.

In detail, referring to the lower side of fig. 1, in order to secure the rigidity of the composite plate 100, the substrate layer 110 includes at least two continuous fiber reinforced thermoplastic composite sheets stacked. The continuous fiber reinforced thermoplastic composite sheet may be a prepreg sheet formed by impregnating a fiber tape with a thermoplastic matrix material. The base material may be one or more of thermoplastic resins such as polypropylene, polyethylene, and nylon. During the hot pressing, the substrate material of the substrate layer 110 is melted and is fully or partially compatible with the melted bonding medium to form an integral connection.

The adhesive medium is preferably a material that is completely or partially compatible with the thermoplastic resin constituting the substrate layer 110.

In an alternative embodiment, the matrix material may be composed of a host resin, a modification aid, and the like. Wherein the main resin is polyolefin resin, and the content of the main resin in the matrix material is 85 percent. The modifying auxiliary agent comprises one or more of functional additives such as toughening master batch, compatilizer, antioxidant, slipping agent, ultraviolet stabilizer, glass beads and the like. The content of the modifying assistant is 15 percent. Wherein, the content of the toughening master batch is 5 parts (5%), the content of the compatilizer is 5 parts (5%), the content of the antioxidant is 2 parts (2%), the content of the slipping agent is 1 part (1%), the content of the ultraviolet stabilizer is 1 part (1%), and the content of the glass beads is 1 part (1%).

The at least two layers of continuous fiber reinforced thermoplastic composite sheets comprise a first sheet 111 and a second sheet 112, wherein the direction of extension of the continuous fibers in the first sheet 111 and the direction of extension of the continuous fibers in the second sheet 112 are different. Preferably, the extending direction of the continuous fibers in the first sheet 111 and the extending direction of the continuous fibers in the second sheet 112 may be 90 degrees, and may be set to any other angle as needed.

During production, the interlayer mechanical structure can be designed and adjusted according to the load-bearing mechanical requirements of the luggage case, such as the requirements of strength and mechanical stress direction. For example, the arrangement of the substrate layers may be at least two first sheets 111 stacked, that is, sheets stacked with the same extending direction of the continuous fibers. The arrangement of the substrate layers may be such that the first sheet 111 and the second sheet 112 are alternately stacked in the top-down direction, that is, a sheet stack having a different extending direction of the continuous fibers for each layer, for example, 0/90/0/90 arrangement, is used. The arrangement of the substrate layer may also include at least one stacking unit, which is arranged in the order of the first sheet, the second sheet, and the first sheet from top to bottom, and when the extending direction of the continuous fibers of the first sheet 111 is perpendicular to the extending direction of the continuous fibers of the second sheet 112, the arrangement is 0/90/90/0.

Referring to the top of fig. 1 in detail, the shielding layer 130 is constructed in an integrally formed double-layered structure (not shown). Specifically, the protective layer 130 includes a scratch resistant layer (not shown) and a connection layer (not shown). The scratch-resistant layer is located on the upper side of the connecting layer, and the connecting layer is used for being connected with the bonding medium. The two can be integrally formed by co-extrusion.

Preferably, the bonding layer is selected from a material that is fully or partially compatible with the bonding medium. Alternatively, the connecting layer may be made of the same material as the adhesive medium or the base material of the substrate layer 110. As an example, the protective layer 130 is a transparent, active, translucent co-extruded film having scratch and mar resistant properties on one side and a polyolefin modified layer on the other side.

Preferably, the fibers in the substrate layer 110 and/or the decoration layer 120 are selected from one of glass fibers, carbon fibers, basalt fibers and aramid fibers. For example, the fibers in the substrate layer 110 and/or the decorative layer 120 may be glass fibers having a linear density of 1200tex and a content of 60%.

According to the utility model discloses a composite sheet 100, it possesses fabulous impact resistance, can provide the impact resistance of superhigh intensity for the suitcase, and the face can carry out all kinds of decorations according to the demand. The production process is hot-melt composite production, volatile materials such as adhesives and the like are not used in the composite process, the production working condition is environment-friendly, and the plate is a thermoplastic material and can be recycled.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A composite panel for a luggage case, the composite panel comprising:

a substrate layer;

the decorative layer is arranged on the upper side of the substrate layer;

the protective layer is arranged on the upper side of the decorative layer;

the decorative layer is constructed into a porous structure, the whole decorative layer is filled with a bonding medium, and the decorative layer and the substrate layer and the protective layer are connected through the bonding medium.

2. A composite board according to claim 1, wherein the substrate layer comprises at least two stacked layers of continuous fiber reinforced thermoplastic composite sheets.

3. The composite panel of claim 2, wherein the at least two layers of continuous fiber reinforced thermoplastic composite sheets comprise a first sheet and a second sheet, wherein the direction of elongation of the continuous fibers in the first sheet is different from the direction of elongation of the continuous fibers in the second sheet.

4. The composite board of claim 3, wherein the substrate layer is selected from one of the following arrangements:

at least two of the first sheets are stacked;

the first sheets and the second sheets are alternately stacked along the direction from top to bottom;

the substrate layer comprises at least one stacking unit, and the stacking unit is arranged in a mode of a first sheet, a second sheet and a first sheet from top to bottom in sequence.

5. A composite board according to claim 3, where the direction of extension of the continuous fibres in the first sheet is perpendicular to the direction of extension of the continuous fibres in the second sheet.

6. A composite board according to claim 1, wherein the protective layer is configured as an integrally formed two-layer structure, and comprises a scratch-resistant layer and a connecting layer, wherein the scratch-resistant layer is located on the upper side of the connecting layer, and the connecting layer is used for forming a connection with the bonding medium.

7. The composite board of claim 1, wherein the fibers of the substrate layer and/or the decorative layer are selected from one of glass fibers, carbon fibers, basalt fibers, and aramid fibers.

8. A luggage case comprising the composite panel of any one of claims 1-7.