CN111592834A

CN111592834A - Edge self-sealing type transparent PVC film and preparation method thereof

Info

Publication number: CN111592834A
Application number: CN202010408755.0A
Authority: CN
Inventors: 张正辉
Original assignee: Jiangsu Himei New Material Co ltd
Current assignee: Jiangsu Himei New Material Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-08-28
Anticipated expiration: 2040-05-14
Also published as: CN111592834B

Abstract

The invention discloses an edge self-sealing type transparent PVC film and a preparation method thereof, belonging to the technical field of PVC film edge sealing, the edge self-sealing type transparent PVC film comprises a PVC film body which is divided into a packaging area and an edge sealing area, wherein the edge sealing area is positioned at two sides of the packaging area, a reinforcing strip is pressed in the middle of the packaging area, the edge sealing can be firmly sealed for the PVC film packaging bag, the edge sealing position can not crack by arranging two hot-pressing edge sealing, the strength of the bottom is enhanced by adding a reinforcing strip at the bottom position so as to avoid bottom cracking caused by insufficient bearing force, the folded PVC film is pressed by a pressing plate during hot pressing, two sides of the PVC film are exposed, a hot-pressing roller is convenient for hot-pressing edge sealing, the upper and lower PVC films can be prevented from dislocation movement, the taking and placing of the pressing plate are realized by adopting an automatic mechanical structure, the labor intensity is reduced, the cost investment is reduced, and the productivity is improved.

Description

Edge self-sealing type transparent PVC film and preparation method thereof

Technical Field

The invention relates to the field of decorative films, in particular to a transparent PVC film with self-sealing edges and a preparation method thereof.

Background

The decorative film is a novel decorative material prepared by using high molecular Polymer (PVC) as a raw material and adding various auxiliary agents through calendering and compounding, can be compounded with base materials such as wood, plastic plates, aluminum plates, iron plates and the like to prepare a multipurpose decorative material, and is widely applied to surface decoration of household appliances, sound equipment, interior decoration of airplanes, ships and trains. In addition, it can be used for a signboard and the like.

After the existing transparent decorative film is attached, because one side of the edge belongs to an open area, when water vapor is generated or dust is attached, the edge is easy to rise and tilt, the whole decorative film slowly falls off after a long time, and the decorative film is easy to be pulled, deformed or scratched, which is the defect of the existing decorative film, and a good solution is not provided.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide an edge self-sealing type transparent PVC film and a preparation method thereof, which can prevent the decorative film from being pulled, deformed or scratched, prevent the edge of the decorative film from raising and tilting by adopting a mode similar to human skin tissues on the lower surface of a PVC base material, and enable the decorative film to have good elasticity and toughness by using elastic fibers and an adhesive layer, so that the decorative film can quickly recover the original shape when being pulled or scratched by external force, and can further prevent the edge of the decorative film from raising and tilting by interweaving the reticular fibers, the elastic fibers and the adhesive layer into a reticular structure.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

An edge self-sealing type transparent PVC film and a preparation method thereof comprise a PVC base material, wherein an ultraviolet-resistant layer is arranged on the upper surface of the PVC base material in a standing way, a friction-resistant layer is bonded on the upper surface of the ultraviolet-resistant layer, reticular fibers, elastic fibers and glue are bonded on the lower surface of the PVC base material, and the reticular fibers, the elastic fibers and the glue are interwoven into a reticular structure;

the method comprises the following steps:

s1, sequentially laminating the ultraviolet-resistant layer and the friction-resistant layer with the PVC substrate, and then preparing a reticular structure;

s2, mixing and stirring the reticular fibers and the elastic fibers before preparing the reticular structure, and then rolling the mixture into a sheet;

s3, placing a sheet formed by combining the reticular fibers and the elastic fibers on a glue brushing machine, and brushing glue on the sheet to form a film with a reticular structure;

and S4, finally, pressing the film with the net structure and the lower surface of the PVC substrate together.

Furthermore, the friction-resistant layer is made of asbestos fiber, and the asbestos fiber is a very good friction-resistant material.

Furthermore, glue adopts waterproof glue material, and waterproof gluey stickness is strong, can not influence its stickness because of steam.

Further, the glue brushing machine in the step S3 includes a workbench, an ultrasonic emitter is installed on the lower surface of the workbench, a base is installed on the upper surface of the workbench, an ultrasonic diffuser matched with the ultrasonic emitter is fixedly connected in the base, ultrasonic diffusing needles are fixedly connected on the upper surface of the ultrasonic diffuser, the ultrasonic diffusing needles are densely and uniformly distributed, a plurality of vertically arranged brackets are fixedly connected on the upper surface of the workbench, a truss is fixedly connected between the upper ends of the brackets, a chute is formed in the lower surface of the truss, a moving block is placed in the chute, side walls on two sides of the moving block are rotatably connected with pulleys, the bottom end of each pulley is in rolling connection with the inner wall of the lower end of the chute, an installation block is fixedly connected at the lower end of the moving block, a vertically arranged telescopic column is installed at the lower end of the installation block, and a glue box is fixedly connected at, and liquid glue is filled in the glue box, a plurality of limiting grooves are formed in the side wall of the lower end of the glue box, a rolling rod is placed in each limiting groove, a driving motor is installed on the side wall of the support, the output end of the driving motor is connected with a cam, a connecting rod is rotatably connected between the cam and the installation block, the glue penetrates into the reticular fibers and the elastic fibers by ultrasonic waves, the three are interwoven, and the viscosity of the reticular structure can be ensured while the glue usage amount is reduced.

Furthermore, the chute is T-shaped, the opening of the chute faces downwards, and the T-shaped chute facilitates installation of the moving block, the pulley and the installation block.

Furthermore, the ultrasonic diffuser and the ultrasonic diffusing needle are made of titanium alloy materials, the transmission rate of ultrasonic waves in the titanium alloy is high, the ultrasonic waves can be transmitted to the thin sheet, and energy waste is avoided.

Furthermore, two glue injection ports are formed in the upper surface of the glue box, the two glue injection ports are respectively located on two sides of the telescopic column, and glue can be conveniently added into the glue box through the glue injection ports.

Further, the shape of spacing groove and the stick that rolls are laminated mutually, can plug up the opening of spacing groove when the stick that rolls receives the action of gravity to glue fast and a large amount of outflow, and when the stick that rolls can roll on the thin slice, roll the stick and can be with gluing even brush on the thin slice.

Further, fixedly connected with supporting seat between two landing legs of workstation, and the supporting seat is located ultrasonic emitter's below, and the supporting seat can also consolidate the stability of workstation landing leg when playing supporting role to ultrasonic emitter.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme can realize preventing that the decorating film from pulling out the deformation or scratching, prevents the edge perk of decorating film through the mode that adopts similar human skin tissue at the lower surface of PVC substrate, and elastic fiber and glue film can make decorating film have fine elasticity and toughness, can resume the former state very fast when receiving pulling or scratching of external force like this, and reticular fiber interweaves into network structure with elastic fiber and glue film, can further prevent decorating film edge department perk.

(2) The friction-resistant layer is made of asbestos fiber, and the asbestos fiber is a very good friction-resistant material.

(3) The glue adopts waterproof glue material, and waterproof glue's stickness is strong, can not influence its stickness because of steam.

(4) The glue brushing machine in the step S3 comprises a workbench, an ultrasonic emitter is arranged on the lower surface of the workbench, a base is arranged on the upper surface of the workbench, an ultrasonic diffuser matched with the ultrasonic emitter is fixedly connected in the base, ultrasonic diffusing needles which are densely and uniformly distributed are fixedly connected on the upper surface of the ultrasonic diffuser, a plurality of vertically arranged brackets are fixedly connected on the upper surface of the workbench, trusses are fixedly connected among the upper ends of the brackets, sliding grooves are formed in the lower surface of the trusses, moving blocks are placed in the sliding grooves, pulleys are rotatably connected on the side walls of the two sides of each moving block, the bottom ends of the pulleys are in rolling connection with the inner walls of the lower ends of the sliding grooves, mounting blocks are fixedly connected at the lower ends of the moving blocks, vertically arranged telescopic columns are mounted at the lower ends of the mounting blocks, glue boxes are fixedly connected at the lower ends, a plurality of spacing grooves have been seted up to the lower extreme lateral wall of gluing the box, and all placed the roll stick in every spacing groove, and driving motor is installed to the lateral wall of one of them support, and driving motor's output is connected with the cam, rotates between cam and the installation piece to be connected with the connecting rod, utilizes the ultrasonic wave to make to glue and permeate to reticular fiber and elastic fiber, lets the three interweave together, can also ensure reticular structure's stickness when reducing the volume of glue use like this.

(5) The shape of spout is T shape, and the opening of spout is down, and the installation of movable block, pulley and installation piece is made things convenient for to the spout of T shape.

(6) The ultrasonic wave diffuser and the ultrasonic wave diffusing needle are made of titanium alloy materials, the transmission rate of ultrasonic waves in the titanium alloy is high, the ultrasonic waves can be transmitted to the slice, and energy waste is avoided.

(7) Two injecting glue mouths have been seted up to the upper surface of gluing the box, and two injecting glue mouths are located the both sides of flexible post respectively, and the injecting glue mouth conveniently adds to gluing in the box and glues.

(8) The shape of spacing groove and the stick that rolls are laminated mutually, can plug up the opening of spacing groove when the stick that rolls receives the action of gravity to glue fast and a large amount of outflow, and when the stick that rolls can roll on the thin slice, roll the stick and can be with the even brush of gluing on the thin slice.

(9) Fixedly connected with supporting seat between two landing legs of workstation, and the supporting seat is located ultrasonic emitter's below, and the supporting seat can also consolidate the stability of workstation landing leg when playing the supporting role to ultrasonic emitter.

Drawings

FIG. 1 is a cross-sectional view of a mesh structure of the present invention;

FIG. 2 is a cross-sectional view of a decorative film of the present invention;

FIG. 3 is a schematic view of a split structure of the glue brushing machine of the present invention;

FIG. 4 is a diagram of the working state of the glue brushing machine of the present invention;

FIG. 5 is a schematic cross-sectional view of a truss structure of the present invention;

FIG. 6 is a schematic view of the structure at A in FIG. 3;

fig. 7 is a schematic structural diagram at B in fig. 3.

The reference numbers in the figures illustrate:

the ultrasonic wave scattering device comprises a PVC (polyvinyl chloride) substrate 1, an ultraviolet-resistant layer 2, a friction-resistant layer 3, a reticular fiber 4, an elastic fiber 5, glue 6, a workbench 7, an ultrasonic transmitter 8, a base 9, an ultrasonic diffuser 10, an ultrasonic scattering needle 11, a support 12, a truss 13, a sliding chute 14, a moving block 15, a pulley 16, an installation block 17, a telescopic column 18, a glue box 19, a limiting groove 20, a rolling rod 21, a glue injection port 22, a driving motor 23, a cam 24, a connecting rod 25 and a supporting seat 26.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-7, an edge self-sealing transparent PVC film and a method for preparing the same, includes a PVC substrate 1, referring to fig. 1-2, an ultraviolet-resistant layer 2 is standing on the upper surface of the PVC substrate 1, a friction-resistant layer 3 is bonded on the upper surface of the ultraviolet-resistant layer 2, the friction-resistant layer 3 is made of an asbestos fiber material, the asbestos fiber is a very good friction-resistant material, a reticular fiber 4, an elastic fiber 5 and a glue 6 are bonded on the lower surface of the PVC substrate 1, the glue 6 is made of a waterproof glue material, the viscosity of the waterproof glue is strong, the viscosity of the waterproof glue is not affected by water vapor, and the reticular fiber 4, the elastic fiber 5 and the glue 6 are interwoven into a reticular structure;

the method comprises the following steps:

s1, sequentially laminating the ultraviolet-resistant layer 2, the friction-resistant layer 3 and the PVC substrate 1, and then preparing a net structure;

s2, mixing and stirring the reticular fibers 4 and the elastic fibers 5 before preparing the reticular structure, and then calendering to form a sheet;

s3, placing the sheet formed by combining the reticular fibers 4 and the elastic fibers 5 on a glue brushing machine, and brushing glue 6 on the sheet to form a film with a reticular structure;

s4, finally, pressing the film with the net structure and the lower surface of the PVC substrate 1 together;

referring to fig. 3-4, the glue coating machine in step S3 includes a worktable 7, an ultrasonic emitter 8 (the specific structure and the operation principle thereof are well known to those skilled in the art, and will not be described herein, and the type thereof can be selected according to the requirement), a support base 26 is fixedly connected between two legs of the worktable 7, the support base 26 is located below the ultrasonic emitter 8, the support base 26 supports the ultrasonic emitter 8 and can also reinforce the stability of the legs of the worktable 7, a base 9 is installed on the upper surface of the worktable 7, an ultrasonic diffuser 10 matched with the ultrasonic emitter 8 is fixedly connected in the base 9, ultrasonic radiating needles 11 are fixedly connected to the upper surface of the ultrasonic diffuser 10, and the ultrasonic radiating needles 11 are densely and uniformly distributed, and the ultrasonic radiating needles 11 are thinner and can be inserted into the gaps of the sheet, the ultrasonic wave diffuser 10 and the ultrasonic wave diffusing needle 11 are made of titanium alloy materials, the propagation rate of ultrasonic waves in titanium alloy is high, the ultrasonic waves can be transmitted into a sheet, energy waste is avoided, the ultrasonic waves impact and oscillate various fibers in the net structure to play a role in helping glue 6 to permeate, the glue 6 can fill gaps in the net structure to form an even and full net structure, the upper surface of the workbench 7 is fixedly connected with a plurality of vertically arranged supports 12, and trusses 13 are fixedly connected among the upper ends of the supports 12;

referring to fig. 5-7, the lower surface of the truss 13 is provided with a sliding groove 14, the sliding groove 14 is T-shaped, the opening of the sliding groove 14 faces downward, the T-shaped sliding groove 14 facilitates the installation of the moving block 15, the pulley 16 and the mounting block 17, the moving block 15 is placed in the sliding groove 14, the pulleys 16 are rotatably connected to the side walls of the two sides of the moving block 15, the bottom end of the pulley 16 is connected to the inner wall of the lower end of the sliding groove 14 in a rolling manner, the lower end of the moving block 15 is fixedly connected to the mounting block 17, and the lower end of the mounting block 17 is provided with a vertically arranged telescopic column 18 (the specific structure and the working principle thereof are well known in the art, and will not be described herein in much detail, and the model thereof can be selected by a person skilled in the art), the glue injection port 22 facilitates adding glue 6 into the glue box 19, the liquid glue 6 is filled in the glue box 19, the side wall of the lower end of the glue box 19 is provided with a plurality of limiting grooves 20, each limiting groove 20 is internally provided with a rolling rod 21, the limiting grooves 20 are in fit with the rolling rods 21, when the rolling rods 21 are under the action of gravity, the openings of the limiting grooves 20 can be blocked, so that the glue 6 can rapidly flow out in a large quantity, when the rolling rods 21 can roll on a sheet, the rolling rods 21 can uniformly brush the glue 6 on the sheet, the side wall of one bracket 12 is provided with a driving motor 23 (the specific structure and the working principle thereof are well known technologies known by technicians in the field, no redundant description is provided herein, and the model thereof can be selected according to requirements), the output end of the driving motor 23 is connected with a cam 24, a connecting rod 25 is rotatably connected between the cam 24 and the mounting block 17, the glue 6 is permeated into the reticular fibers 4 and the elastic fibers 5 by utilizing ultrasonic waves, and the three are interwoven together, so that the use amount of the glue 6 is reduced, and meanwhile, the viscosity of a reticular structure can be ensured.

After the reticular fiber 4 and the elastic fiber 5 are rolled into a sheet, the sheet is laid on the ultrasonic wave emission needle 11, the glue 6 is injected into the glue box 19, at the moment, the rolling rod 21 is blocked by the limiting groove 20 under the action of gravity, the glue 6 does not flow out, then the ultrasonic wave emitter 8 is started, the ultrasonic wave emitted by the ultrasonic wave emitter 8 is transmitted to the sheet through the ultrasonic wave diffuser 10 and the ultrasonic wave emission needle 11, the ultrasonic wave emission needle 11 is thin and can be inserted into the gap of the sheet, so that the glue 6 can better permeate in the sheet, the telescopic column 18 is started to lower the glue box 19 until the rolling rod 21 is contacted with the sheet and can roll on the sheet, at the moment, the rolling rod 21 does not block the limiting groove 20 any more, the glue 6 is uniformly brushed on the sheet while the rolling rod 21 rolls, then the driving motor 23 is started, the driving motor 23 drives the cam 24 to rotate, the connecting rod 25 pulls the mounting block 17 to do reciprocating motion by the rotation of the cam 24, so that the rolling rod 21 can roll, and after finishing brushing the glue, the driving motor 23 and the ultrasonic emitter 8 are closed, the glue box 19 is lifted, and the sheet is taken down.

It can realize preventing that the decorating film from pulling out deformation or lacerating, stops the edge perk of decorating film through the mode that adopts similar human skin tissue at the lower surface at the PVC substrate, and elastic fiber and glue film can make decorating film have fine elasticity and toughness, can resume the former state very fast when receiving pulling or drawing of external force like this, and reticular fiber interweaves into network structure with elastic fiber and glue film, can further stop decorating film edge department perk.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the modified concept of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides a transparent PVC membrane of formula is proclaimed oneself to edge and preparation method thereof, includes PVC substrate (1), there is anti ultraviolet layer (2) on the upper surface station street of PVC substrate (1), and the upper surface bonding on anti ultraviolet layer (2) has antifriction layer (3), its characterized in that: reticular fibers (4), elastic fibers (5) and glue (6) are bonded on the lower surface of the PVC base material (1), and the reticular fibers (4), the elastic fibers (5) and the glue (6) are interwoven into a reticular structure;

the method comprises the following steps:

s1, sequentially laminating the ultraviolet-resistant layer (2), the friction-resistant layer (3) and the PVC base material (1) and then preparing a net-shaped structure;

s2, mixing and stirring the reticular fibers (4) and the elastic fibers (5) before preparing the reticular structure, and then rolling the mixture into a sheet;

s3, placing a sheet formed by combining the reticular fibers (4) and the elastic fibers (5) on a glue brushing machine, and brushing glue (6) on the sheet to form a film with a reticular structure;

s4, finally, the film with the net structure is pressed with the lower surface of the PVC substrate (1).

2. The edge self-sealing transparent PVC film and the preparation method thereof according to claim 1, characterized in that: the friction-resistant layer (3) is made of asbestos fiber materials.

3. The edge self-sealing transparent PVC film and the preparation method thereof according to claim 1, characterized in that: the glue (6) is made of waterproof glue material.

4. The edge self-sealing transparent PVC film and the preparation method thereof according to claim 1, characterized in that: the glue brushing machine in the step S3 comprises a workbench (7), an ultrasonic emitter (8) is installed on the lower surface of the workbench (7), a base (9) is installed on the upper surface of the workbench (7), an ultrasonic diffuser (10) matched with the ultrasonic emitter (8) is fixedly connected into the base (9), ultrasonic dispersing needles (11) which are densely and uniformly distributed are fixedly connected onto the upper surface of the ultrasonic diffuser (10), a plurality of vertically arranged supports (12) are fixedly connected onto the upper surface of the workbench (7), a truss (13) is fixedly connected between the upper ends of the supports (12), a sliding groove (14) is formed in the lower surface of the truss (13), a moving block (15) is placed into the sliding groove (14), pulleys (16) are rotatably connected onto the side walls of the two sides of the moving block (15), and the bottom end of each pulley (16) is connected with the inner wall of the lower end of the corresponding sliding groove (14) in a rolling manner, the lower extreme fixedly connected with installation piece (17) of movable block (15), and the lower extreme of installation piece (17) installs the flexible post (18) of vertical setting, the lower extreme fixedly connected with of flexible post (18) glues box (19), and liquid glue (6) is filled in gluing box (19), a plurality of spacing grooves (20) have been seted up to the lower extreme lateral wall of gluing box (19), and all placed in every spacing groove (20) and roll stick (21), one of them driving motor (23) are installed to the lateral wall of support (12), and the output of driving motor (23) is connected with cam (24), rotate between cam (24) and installation piece (17) and be connected with connecting rod (25).

5. The edge self-sealing transparent PVC film and the preparation method thereof according to claim 4, wherein the preparation method comprises the following steps: the sliding chute (14) is T-shaped, and the opening of the sliding chute (14) faces downwards.

6. The edge self-sealing transparent PVC film and the preparation method thereof according to claim 4, wherein the preparation method comprises the following steps: the ultrasonic diffuser (10) and the ultrasonic diffusing needle (11) are made of titanium alloy materials.

7. The edge self-sealing transparent PVC film and the preparation method thereof according to claim 4, wherein the preparation method comprises the following steps: two glue injection openings (22) are formed in the upper surface of the glue box (19), and the two glue injection openings (22) are located on two sides of the telescopic column (18) respectively.

8. The edge self-sealing transparent PVC film and the preparation method thereof according to claim 4, wherein the preparation method comprises the following steps: the shape of the limiting groove (20) is attached to the rolling rod (21).

9. The edge self-sealing transparent PVC film and the preparation method thereof according to claim 4, wherein the preparation method comprises the following steps: a supporting seat (26) is fixedly connected between the two supporting legs of the workbench (7), and the supporting seat (26) is located below the ultrasonic transmitter (8).