CN107877963B - High-molecular wax-imitated PVC decorative film and preparation method thereof - Google Patents

High-molecular wax-imitated PVC decorative film and preparation method thereof Download PDF

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CN107877963B
CN107877963B CN201711150655.7A CN201711150655A CN107877963B CN 107877963 B CN107877963 B CN 107877963B CN 201711150655 A CN201711150655 A CN 201711150655A CN 107877963 B CN107877963 B CN 107877963B
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cooling
film
pvc
roller
temperature
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CN107877963A (en
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赵沁
李向华
王燕
赵卫东
朱广和
赵霞
徐伟
徐妤
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Jiangsu Econess Energy Co.,Ltd.
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JIANGSU ECONESS ENERGY CO Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/12—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being fed round the roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C13/00—Means for manipulating or holding work, e.g. for separate articles
    • B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
    • B05D7/04—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber to surfaces of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0007—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality
    • B32B37/003—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality to avoid air inclusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0036—Heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/18—Handling of layers or the laminate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2501/00—Varnish or unspecified clear coat
    • B05D2501/10—Wax
    • B29D2009/00—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/0084—Foaming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Quality & Reliability (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to an imitated polymer wax PVC decorative film and a preparation method thereof, and the imitated polymer wax PVC decorative film comprises a PVC base layer, a PVC surface layer, a printing layer and a surface functional layer, wherein the surface functional layer is formed by foaming after polymer wax is coated on the surface of the printing layer on line. The production steps comprise PVC base material-PVC face film-surface coating-hot pressing fit-foaming-cooling, wherein the surface coating procedure comprises the steps of coating macromolecular wax on the surface of the PVC face film, and recrystallizing on the surface of the PVC face film after foaming to form a special functional face layer. The application is a high-molecular wax-imitated decorative film, which has bright color, good extinction property and anti-adhesion property on the surface of the film, smooth hand feeling, no light reflection and lasting bright color.

Description

High-molecular wax-imitated PVC decorative film and preparation method thereof
Technical Field
The invention belongs to a preparation method of a PVC decorative film, and particularly relates to a preparation method of an imitated polymer wax decorative film.
Background
Before the invention is made, the polymer wax is added into the raw materials of the decorative film in a small amount of additive, is mainly used for the production process of the matte decorative film, mainly plays the roles of inhibiting pigment precipitation and extinction, can improve the mixing uniformity of solid and powder raw materials in the raw material mixing process, improves the production efficiency, has certain benefits for the uniform orientation of particles, and can obtain the effects of bright color, three-dimensional patterns and extinction.
Along with the wider application range of the decorative film, the market has higher and higher requirements on the decorative film, and particularly, a high-grade decorative film which is full and bright in color, clear in pattern edge and glossy in surface but not reflective appears on the market at present.
The existing decorative film has the following defects: 1) the film surface smoothness and blocking resistance are insufficient; 2) the color is full, but the light is reflected, and the surface extinction is poor; 3) the stereoscopic impression of the pattern is not strong.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a PVC decorative film imitating polymer wax aiming at the prior art, which mainly improves the surface performance of the PVC decorative film, enables the surface of the decorative film to have silky touch feeling, improves the anti-blocking property, improves the surface extinction property, improves the surface color saturation degree, and simultaneously eliminates the light reflection to obtain a visual high-grade decorative film product.
The technical scheme adopted by the invention for solving the problems is as follows: the PVC decorative film imitating the polymer wax comprises a PVC base layer, a PVC surface layer, a printing layer and a surface functional layer, wherein the surface functional layer is formed by forming a polymer wax layer on the surface of the printing layer on line and foaming the polymer wax layer.
The preparation method of the imitated polymer PVC decorative film comprises the following steps
Step one, PVC base material
1.1, preparing materials
Taking PVC resin and dioctyl ester as main raw materials, wherein the weight ratio of the materials is PVC resin: 100:25 of dioctyl;
1.2 stirring
The formula materials are weighed according to the proportion, the PVC resin is added into a stirrer, then dioctyl ester is added, the mixture is heated to 110-130 ℃, and the mixture is stirred uniformly;
1.3, plasticization
Conveying the fully stirred and mixed hot materials into an internal mixer to be heated to 190 ℃ at 170 ℃, and carrying out copolymerization to obtain plasticization in a sealed state;
1.4 open mixing
Conveying the synthesized and plasticized hot material into a two-roller open mill, continuously turning over for 13 minutes manually, and further synthesizing and plasticizing the hot material through rubber mixing;
1.5 refining
Conveying the milled material into an extruder in a cut strip shape, heating to 140-160 ℃, extruding, stirring and propelling for refining, then extruding to a die orifice, passing through a 120-mesh filter screen, and filtering un-plasticized 'fish eyes' and impurities, wherein the temperature of a screw barrel of the extruder is 190 plus materials and the rotating speed of a screw is 85-95 r/min.
1.6, cooling and shaping
Feeding the material into a calender, heating to 140-160 ℃ for calendering, inputting the calendered hot base material into a five-roller cooling roller for cooling and shaping, wherein the diameter of the five-roller cooling roller is 75cm, the five-roller cooling roller is cooled by adopting a spacer bush, the temperature of cooling water is controlled below 15 ℃, and the rotation speed is synchronous with the calendering;
1.7, edge cutting and rolling
Inputting the cooled and shaped substrate into an edge cutting and winding device, cutting off redundant two edge strips according to the width required by the specification, and then winding into a large roll, wherein the speed is synchronous with the cooling and shaping;
step two, PVC facial mask
2.1, preparing materials
Adding PVC resin, azodicarbonamide, flame retardants NH-1197 and dioctyl ester, and other required ingredients into a stirring container;
2.2 stirring
Weighing the formula materials according to the proportion, adding PVC resin into a stirrer, adding dioctyl ester, adding a reinforcing agent and a hardening agent in an auxiliary manner, stirring for 6 minutes, adding azodicarbonamide and a flame retardant NH1197, and stirring for 5 minutes;
the whole stirring temperature is 110-130 ℃, the stirring speed is 145-155 r/min;
2.3, plasticization
Adding the fully stirred mixture into an internal mixer, and mixing, polymerizing and plasticizing in a sealed state, wherein the process is 20 minutes, the temperature is controlled to be 175-class 185 ℃, and the rotating speed is 135-class 145 r/min;
2.4 open mixing
Conveying the plasticized hot materials into a two-roller open mill for milling for 15 minutes, and performing combined plasticization in one step, wherein the temperature of two rollers is controlled at 180 ℃ and 190 ℃, and the linear speed is controlled at 30-35 m/min;
2.5 refining and filtering
Conveying the milled clinker into a strip shape into an extruder for extrusion, pushing and stirring type refining, then extruding to a die orifice, filtering un-plasticized 'fish eyes' (agglomerated reaction materials) and impurities by a 300-mesh filter screen, wherein the temperature of a screw cylinder is controlled at 190 ℃ and the rotating speed of a screw is controlled at 80-90 r/min;
2.6 calendering
Conveying the refined and filtered clinker into a five-roller calender in a strip shape, calendering into a thin color film with mildew-proof, anti-fouling and flame-retardant functions according to the requirements of thickness and width specifications, wherein the temperature of a five-roller heating roller is controlled at 185 ℃ for one time, and the linear speed is controlled at 130 m/min for one time;
2.7, cooling and shaping
Cooling the color film formed by calendering by five rollers, wherein the five rollers are cooled by adopting spacer sleeve cooling water, the temperature of the cooling water is controlled below 20 ℃, and the speed is synchronous with calendering;
2.8, edge cutting and rolling
Conveying the cooled and shaped color film into an edge cutting and winding device, cutting off waste edges on two sides according to the specification and width requirements, and then winding into a large roll for standby application, wherein the speed is synchronous with the cooling and shaping;
step three, surface coating
Smelting high-molecular wax in a heat preservation furnace, injecting the high-molecular wax into a gluing roller, simultaneously winding a PVC (polyvinyl chloride) surface film onto a vertical film-moving guide roller group, wherein the film-moving guide roller group comprises an upper film-moving guide roller and a lower film-moving guide roller, a metal belt is tensioned on the upper film-moving guide roller and the lower film-moving guide roller, the PVC surface film moves from top to bottom by traction of the metal belt, the gluing roller is tightly pressed with the upper film-moving guide roller, the high-molecular wax is coated on the PVC surface film, a heating induction coil is arranged on the outer side of the metal belt to heat the metal belt, the temperature of the heating induction coil is in a trend of descending gradient from top to bottom, the highest temperature of induction heating is 185 ℃, the lowest temperature is; after coming out of the film-moving guide roller group, hot pressing, cooling and winding are carried out; the cooling procedure comprises a water washing pass, and the surface of the membrane is dehydrated by a wringing roller after passing through a water washing pool, so that the brightness of the surface of the membrane is improved;
step four, hot-pressing and attaching
4.1 Material feeding frame
Respectively placing the base material and the facial mask large roll on a discharging frame shaft, leading the penetrating material to a receiving reel through guide rollers of all the procedures, and adjusting the tension;
4.2 smoothing and wrinkle removing
Hot pressing and attaching, namely firstly, respectively enabling the base material and the color film to be longitudinally smoothed and flattened without folds through a twill tension roller; prevent wrinkling, twill and cross grain during hot-press fitting.
4.3 heating to remove moisture
Heating to evaporate moisture on the binding surfaces of the base material and the color film; prevent to form bubbles and bright spots to form defective products due to water vapor after the lamination.
4.4 opposite edge
The base material and the two sides of the color film are aligned by using a 'light eye', and the longitudinal direction and the transverse direction of the two layers are adjusted by combining a tension roller, so that the two layers are prevented from being deviated, misplaced and attached unevenly.
4.5 degassing
The air between the base material and the color film is extruded out and then tightly attached by the double-roller rubber roller, so that bubbles are prevented from being generated during heat seal.
4.6, hot pressing and laminating
Heating the substrate and the color film which are degassed and closely attached together to 160-170 ℃ by a double-wheel hot press roller, pressurizing by 0.4kg, and fusing and hot-pressing the two layers of substrate color films in the initial plasticizing period to attach together. The process is environment-friendly and has strong peel strength without glue.
4.7, cooling, shaping, rolling
And conveying the composite material which is firmly hot-pressed and adhered to a five-roller cooling roller by a guide roller, cooling the five rollers by adopting spacer water, controlling the water temperature to be below 15 ℃, cooling to shape the material, then rolling into a large roll, and entering the next working procedure.
Step five, foaming
Directly feeding the PVC decorative film subjected to attaching and embossing into an oven, heating to 180-210 ℃ for the second time, so that the PVC facial film is foamed, and at the moment, the polymer wax is in a state of starting melting, so that the ductility is good;
step six, cooling
After the foaming process, the PVC decorative film is drawn into a spacer water cooling roller for cooling and shaping and then is rolled to prepare the imitated polymer wax decorative film, and the speed of each process from the lamination embosser to the cooling is controlled to be 40-120 m/min.
Preferably, the polymer wax is formed by mixing polyethylene and paraffin, the melting point of the polymer wax is 180-200 ℃, and the melting temperature of the polymer wax is 185-210 ℃.
Compared with the prior art, the invention has the advantages that: this application is through smelting crystallization type polymer wax, through coated technology, on coating the facial mask with polymer wax, adopt the mode of induction coil heating strap, facial mask and wax layer are not heated, the strap is heated and is passed heat to the facial mask, from top to bottom formation temperature difference in the junction of facial mask and polymer wax, this temperature difference makes the crystallization of wax layer go on from inside to outside, thereby polymer wax can the partial infiltration facial mask when having improved the cohesion of polymer wax and facial mask, help improving the surperficial color vividness of facial mask, prevent pigment deposit, extension color film color aging time. The effect of using the polymer wax as one of the raw materials of the mask is achieved. After foaming, the macromolecular wax is recrystallized on the surface to form a microcrystalline structure, so that the smoothness, the anti-blocking property and the delustering property of the surface of the film are improved, and the surface of the decorative film is not reflective.
In conclusion, the decorative film disclosed by the application does not need to add polymer wax in the film raw material, but realizes the technical effect of imitating the polymer wax. The color is bright without precipitation, the surface of the film has good extinction property and no light reflection, and after foaming, the macromolecule wax layer has excellent scrub feel and good anti-adhesion property.
Drawings
FIG. 1 is a schematic diagram of the operation of step three surface coating in the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples.
The polymer wax-imitated PVC decorative film in the embodiment is composed of a PVC base layer, a PVC surface layer, a printing layer and a surface functional layer, wherein the printing layer and the PVC surface layer can be color PVC surface layers, and the surface functional layer is formed by foaming after polymer wax is coated on the surface of the printing layer on line.
The preparation method of the imitated polymer wax PVC decorative film comprises the following steps
Step one, PVC base material
And (3) conveying the refined and filtered completely plasticized PVC clinker into a five-roller calender, and calendering the PVC clinker into a transparent base material with relevant specifications according to the thickness and width specification requirements. The heating roller of the five-roller calender is controlled at 180 ℃ and the speed is controlled at 135 m/min and 175-.
1.1, preparing materials
Taking PVC resin and dioctyl ester as main raw materials, wherein the weight ratio of the materials is PVC resin: 100:25 of dioctyl;
1.2 stirring
The formula materials are weighed according to the proportion, the PVC resin is added into a stirrer, then dioctyl ester is added, the mixture is heated to 110-130 ℃, and the mixture is stirred uniformly;
1.3, plasticization
Conveying the fully stirred and mixed hot materials into an internal mixer to be heated to 190 ℃ at 170 ℃, and carrying out copolymerization to obtain plasticization in a sealed state;
1.4 open mixing
Conveying the synthesized and plasticized hot material into a two-roller open mill, continuously turning over for 13 minutes manually, and further synthesizing and plasticizing the hot material through rubber mixing;
1.5 refining
Conveying the milled material into an extruder in a cut strip shape, heating to 140-160 ℃, extruding, stirring and propelling for refining, then extruding to a die orifice, passing through a 120-mesh filter screen, and filtering un-plasticized 'fish eyes' and impurities, wherein the temperature of a screw barrel of the extruder is 190 plus materials and the rotating speed of a screw is 85-95 r/min;
1.6, cooling and shaping
Feeding the material into a calender, heating to 140-160 ℃ for calendering, inputting the calendered hot base material into a five-roller cooling roller for cooling and shaping, wherein the diameter of the five-roller cooling roller is 75cm, the five-roller cooling roller is cooled by adopting a spacer bush, the temperature of cooling water is controlled below 15 ℃, and the rotation speed is synchronous with the calendering;
1.7, edge cutting and rolling
Inputting the cooled and shaped substrate into an edge cutting and winding device, cutting off redundant two edge strips according to the width required by the specification, and then winding into a large roll, wherein the speed is synchronous with the cooling and shaping;
step two, PVC facial mask
2.1, preparing materials
Adding PVC resin, azodicarbonamide, flame retardants NH-1197 and dioctyl ester, and other required ingredients into a stirring container;
2.2 stirring
Weighing the formula materials according to the proportion, adding PVC resin into a stirrer, adding dioctyl ester, adding a reinforcing agent and a hardening agent in an auxiliary manner, stirring for 6 minutes, adding azodicarbonamide and a flame retardant NH1197, and stirring for 5 minutes;
the whole stirring temperature is 110-130 ℃, the stirring speed is 145-155 r/min;
2.3, plasticization
Adding the fully stirred mixture into an internal mixer, and mixing, polymerizing and plasticizing in a sealed state, wherein the process is 20 minutes, the temperature is controlled to be 175-class 185 ℃, and the rotating speed is 135-class 145 r/min;
2.4 open mixing
Conveying the plasticized hot materials into a two-roller open mill for milling for 15 minutes, and performing combined plasticization in one step, wherein the temperature of two rollers is controlled at 180 ℃ and 190 ℃, and the linear speed is controlled at 30-35 m/min;
2.5 refining and filtering
Conveying the milled clinker into a strip shape into an extruder for extrusion, propulsion and stirring type refining, then extruding to a die orifice, filtering out un-plasticized 'fish eyes' and impurities through a 300-mesh filter screen, controlling the temperature of a screw cylinder at 190 ℃ and the rotating speed of a screw at 80-90 r/min in the process;
2.6 calendering
Conveying the refined and filtered clinker into a five-roller calender in a strip shape, calendering into a thin color film with mildew-proof, anti-fouling and flame-retardant functions according to the requirements of thickness and width specifications, wherein the temperature of a five-roller heating roller is controlled at 185 ℃ for one time, and the linear speed is controlled at 130 m/min for one time;
2.7, cooling and shaping
Cooling the color film formed by calendering by five rollers, wherein the five rollers are cooled by adopting spacer sleeve cooling water, the temperature of the cooling water is controlled below 20 ℃, and the speed is synchronous with calendering;
2.8, edge cutting and rolling
Conveying the cooled and shaped color film into an edge cutting and winding device, cutting off waste edges on two sides according to the specification and width requirements, and then winding into a large roll for standby application, wherein the speed is synchronous with the cooling and shaping;
step three, surface coating
The polymer wax is smelted in a heat-preserving furnace, wherein the polymer wax selected in the embodiment is the polymer wax mixed by polyethylene and paraffin, belongs to microcrystalline wax, and has a melting point of 180-200 ℃ and a smelting temperature of 185-210 ℃. Injecting high molecular wax into a gluing roller, simultaneously winding a PVC (polyvinyl chloride) mask onto a vertical film-moving guide roller set, wherein the film-moving guide roller set comprises an upper film-moving guide roller and a lower film-moving guide roller, a metal belt is tensioned on the upper film-moving guide roller and the lower film-moving guide roller, the metal belt is drawn by the metal belt to move from top to bottom, the gluing roller is tightly pressed with the upper film-moving guide roller, the PVC mask is coated with the high molecular wax, a heating induction coil is arranged outside the metal belt to heat the metal belt, the temperature of the heating induction coil is in a gradient decreasing trend from top to bottom, the highest temperature of the induction heating is 185 ℃, the lowest temperature is 120-; after coming out of the film-moving guide roller group, hot pressing, cooling and winding are carried out; the cooling procedure comprises a water washing pass, and the surface of the membrane is dehydrated by a wringing roller after passing through a water washing pool, so that the brightness of the surface of the membrane is improved;
step four, hot-pressing and attaching
4.1 Material feeding frame
Respectively placing the base material and the facial mask large roll on a discharging frame shaft, leading the penetrating material to a receiving reel through guide rollers of all the procedures, and adjusting the tension;
4.2 smoothing and wrinkle removing
Hot pressing and attaching, namely firstly, respectively enabling the base material and the color film to be longitudinally smoothed and flattened without folds through a twill tension roller;
4.3 heating to remove moisture
Heating to evaporate moisture on the binding surfaces of the base material and the color film;
4.4 opposite edge
Aligning the base material with the two sides of the color film, and regulating the longitudinal direction and the transverse direction of the two layers by combining the tension roller;
4.5 degassing
The air between the base material and the color film which are combined together is extruded out firstly and then is attached tightly by the double-roller rubber roller, so that bubbles are prevented from being generated during heat seal;
4.6, hot pressing and laminating
Heating the substrate and the color film which are degassed and closely attached together to 160-170 ℃ by a double-wheel hot press roller, pressurizing by 0.4kg, and fusing and hot-pressing the two layers of substrate color films in the initial plasticizing period to attach together;
4.7, cooling, shaping, rolling
Conveying the composite material which is firmly hot-pressed and attached to five rollers through a guide roller for cooling, cooling the five rollers by adopting spacer water, controlling the water temperature to be below 15 ℃, cooling to shape the material, then rolling into a large roll, and entering the next procedure;
step five, foaming
Directly feeding the PVC decorative film subjected to attaching and embossing into an oven, and heating to 180-210 ℃ for the second time to foam the PVC facial film;
step six, cooling
After the foaming process, the PVC decorative film is drawn into a spacer water cooling roller for cooling and shaping and then is rolled to prepare the imitated polymer wax decorative film, and the speed of each process from the lamination embosser to the cooling is controlled to be 40-120 m/min.
In addition, this application step 3 polymer wax's coating adopts the device to design to, including the vertically walk the membrane passageway, walk membrane deflector roll (101, 102) from top to bottom, go up rubber roll 2 with it compresses tightly to go up to walk membrane deflector roll 101, and it has metal to pull area 7 to walk the tensioning on the membrane deflector roll from top to bottom, and it is provided with heating induction coil (3) to pull the area periphery at the metal, walks membrane deflector roll below and is provided with compression roller 4 again, and wash tank (5) have been arranged to compression roller 4 below, crowded water roller (6) have been arranged to wash tank (5) upside. The PVC facial mask is introduced into the film passing channel, runs from top to bottom along the film passing channel, is pulled by the metal traction belt to move downwards, the polymer wax is coated on the surface of the facial mask by the gluing roller 2, and the facial mask is heated, cured, hot-pressed, washed and rolled.
The application is a high-molecular wax-imitated decorative film, which has bright color, good extinction property and anti-adhesion property on the surface of the film, smooth hand feeling, no light reflection and lasting bright color.
As contrast, the decorative film product of this application compares with the decorative film who uses polymer wax as facial mask raw materials production, and in the aspect of the colour, the two effect is equivalent, and in the aspect of the surface extinction, this application does not have the reflection of light, has reached the production requirement of high-grade product in the vision. In the aspect of the surperficial sense of touch, this application is more smooth, and anti adhesion is effectual.
In addition to the above embodiments, the present invention also includes other embodiments, and any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of the claims of the present invention.

Claims (2)

1. The utility model provides an imitative polymer wax PVC decorating film which characterized in that: the printing layer comprises a PVC base layer, a PVC surface layer, a printing layer and a surface functional layer, wherein the surface functional layer is formed by coating polymer wax on the surface of the printing layer on line and then foaming the polymer wax, and the specific preparation method comprises the following steps
Step one, PVC base layer
1.1, preparing materials
Taking PVC resin and dioctyl ester as main raw materials, wherein the weight ratio of the materials is PVC resin: dioctyl =100: 25;
1.2 stirring
The formula materials are weighed according to the proportion, the PVC resin is added into a stirrer, then dioctyl ester is added, the mixture is heated to 110-130 ℃, and the mixture is stirred uniformly;
1.3, plasticization
Conveying the fully stirred and mixed hot materials into an internal mixer to be heated to 190 ℃ at 170 ℃, and carrying out copolymerization to obtain plasticization in a sealed state;
1.4 open mixing
Conveying the synthesized and plasticized hot material into a two-roller open mill, continuously turning over for 13 minutes manually, and further synthesizing and plasticizing the hot material through rubber mixing;
1.5 refining
Conveying the milled material into an extruder in a cut strip shape, heating to 140-160 ℃, extruding, stirring and propelling for refining, then extruding to a die orifice, passing through a 120-mesh filter screen, and filtering un-plasticized 'fish eyes' and impurities, wherein the temperature of a screw barrel of the extruder is 190 plus materials and the rotating speed of a screw is 85-95 r/min;
1.6, cooling and shaping
Feeding the material into a calender, heating to 140-160 ℃ for calendering, inputting the calendered hot base layer into a five-roller cooling roller for cooling and shaping, cooling by adopting spacer water, controlling the temperature of cooling water to be below 15 ℃, and synchronizing the rotation speed with calendering;
1.7, edge cutting and rolling
Inputting the cooled and shaped base layer into an edge cutting and winding device, cutting off redundant two edge strips according to the width required by the specification, and then winding into a large roll, wherein the speed is synchronous with the cooling and shaping;
step two, PVC surface layer
2.1, preparing materials
Adding PVC resin, azodicarbonamide, flame retardants NH-1197 and dioctyl ester, and other required ingredients into a stirring container;
2.2 stirring
Weighing the formula materials according to the proportion, adding PVC resin into a stirrer, adding dioctyl ester, adding a reinforcing agent and a hardening agent in an auxiliary manner, stirring for 6 minutes, adding azodicarbonamide and a flame retardant NH1197, and stirring for 5 minutes;
the whole stirring temperature is 110-130 ℃, the stirring speed is 145-155 r/min;
2.3, plasticization
Adding the fully stirred mixture into an internal mixer, and mixing, polymerizing and plasticizing in a sealed state, wherein the process is 20 minutes, the temperature is controlled to be 175-class 185 ℃, and the rotating speed is 135-class 145 r/min;
2.4 open mixing
Conveying the plasticized hot materials into a two-roller open mill for turnover milling for 15 minutes, further polymerizing and plasticizing, controlling the temperature of two rollers at 190 ℃ and controlling the linear speed at 30-35 m/min;
2.5 refining and filtering
Conveying the milled clinker into a strip shape into an extruder for extrusion, propulsion and stirring type refining, then extruding to a die orifice, filtering out un-plasticized 'fish eyes' and impurities through a 300-mesh filter screen, controlling the temperature of a screw cylinder at 190 ℃ and the rotating speed of a screw at 80-90 r/min in the process;
2.6 calendering
Conveying the refined and filtered clinker into a five-roller calender in a strip shape, calendering into a color film with the functions of mildew prevention, fouling resistance and flame retardation according to the requirements of thickness and width specification, wherein the temperature of a five-roller heating roller is controlled at 185 ℃ for the process, and the linear speed is controlled at 130 m/min for 120-;
2.7, cooling and shaping
Cooling the color film formed by calendering by five rollers, wherein the five rollers are cooled by adopting spacer sleeve cooling water, the temperature of the cooling water is controlled below 20 ℃, and the speed is synchronous with calendering;
2.8, edge cutting and rolling
Conveying the cooled and shaped color film into an edge cutting and winding device, cutting off waste edges on two sides according to the specification and width requirements, and then winding into a large roll for standby application, wherein the speed is synchronous with the cooling and shaping;
step three, surface coating
Smelting high-molecular wax in a heat preservation furnace, injecting the high-molecular wax into a gluing roller, simultaneously winding a PVC surface layer onto a vertical film-moving guide roller group, wherein the film-moving guide roller group comprises an upper film-moving guide roller and a lower film-moving guide roller, a metal belt is tensioned on the upper film-moving guide roller and the lower film-moving guide roller, a film is drawn by the metal belt to move from top to bottom, the gluing roller is tightly pressed with the upper film-moving guide roller, the high-molecular wax is coated on the PVC surface layer, a heating induction coil is arranged on the outer side of the metal belt to heat the metal belt, the temperature of the heating induction coil is in a gradient decreasing trend from top to bottom, the highest temperature of induction heating is 185 ℃, the lowest temperature is 120-140 ℃, and the temperature gradient; after coming out of the film-moving guide roller group, hot pressing, cooling and winding are carried out; the cooling procedure comprises a water washing pass, and the surface of the membrane is dehydrated by a wringing roller after passing through a water washing pool, so that the brightness of the surface of the membrane is improved;
step four, hot-pressing and attaching
4.1 Material feeding frame
Respectively placing the base layer and the surface layer large rolls on a discharging frame shaft, penetrating materials to a receiving reel through guide rollers of various procedures, and adjusting the tension;
4.2 smoothing and wrinkle removing
Hot pressing and attaching, namely firstly, respectively enabling the base layer and the color film to be longitudinally smoothed and flattened without wrinkles through twill tension rollers;
4.3 heating to remove moisture
Evaporating moisture on the binding surfaces of the base layer and the color film by heating;
4.4 opposite edge
Aligning the base layer and the two sides of the color film, and adjusting the longitudinal direction and the transverse direction of the two layers by combining a twill tension roller;
4.5 degassing
The air between the base layer and the color film which are combined together is extruded out firstly and then is attached tightly by the double-roller rubber roller, so that bubbles are prevented from being generated during heat seal;
4.6, hot pressing and laminating
Heating the base layer and the color film which are degassed and closely attached together to 160-170 ℃ by a double-wheel hot press roller, pressurizing by 0.4kg, and fusing and hot-pressing the two layers of the base layer color film in the initial plasticizing stage together;
4.7, cooling, shaping, rolling
Conveying the composite material which is firmly hot-pressed and attached to five rollers through a guide roller for cooling, cooling the five rollers by adopting spacer water, controlling the water temperature to be below 15 ℃, cooling to shape the material, then rolling into a large roll, and entering the next procedure;
step five, foaming
Directly feeding the PVC decorative film subjected to attaching embossing into an oven for secondary heating to 180-210 ℃ to foam the PVC surface layer;
step six, cooling
After the foaming process, the PVC decorative film is drawn into a spacer water cooling roller for cooling and shaping and then is rolled to prepare the imitated polymer wax decorative film, and the speed of each process from the lamination embosser to the cooling is controlled to be 40-120 m/min.
2. The polymer wax-imitated PVC decorative film according to claim 1, is characterized in that: the high polymer wax is prepared by mixing polyethylene and paraffin, the melting point of the high polymer wax is 180-200 ℃, and the melting temperature of the high polymer wax is 185-210 ℃.
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CN108749184A (en) * 2018-04-08 2018-11-06 南通慧源塑胶有限公司 A kind of anti-UV and antiultraviolet PVC film and preparation method thereof
CN111791518B (en) * 2020-07-06 2022-03-01 嘉兴市布雷塑胶新材料股份有限公司 PVC composite material production line for high-heat-resistance outdoor tent and production process thereof
CN114103089A (en) * 2020-08-28 2022-03-01 深圳市能佳自动化设备有限公司 3D film pasting method based on liquid heating
CN112170506B (en) * 2020-10-14 2024-08-16 哈尔滨工业大学（威海） Temperature compensation method and device for conveying roller way of magnesium or magnesium alloy plate strip

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