CN114089456A - Reflective film coating process - Google Patents
Reflective film coating process Download PDFInfo
- Publication number
- CN114089456A CN114089456A CN202010857837.3A CN202010857837A CN114089456A CN 114089456 A CN114089456 A CN 114089456A CN 202010857837 A CN202010857837 A CN 202010857837A CN 114089456 A CN114089456 A CN 114089456A
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- Prior art keywords
- glue
- glass beads
- layer
- coating process
- reflective film
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000007888 film coating Substances 0.000 title claims abstract description 18
- 238000009501 film coating Methods 0.000 title claims abstract description 18
- 239000010410 layer Substances 0.000 claims abstract description 64
- 239000011324 bead Substances 0.000 claims abstract description 58
- 239000011521 glass Substances 0.000 claims abstract description 56
- 239000002131 composite material Substances 0.000 claims abstract description 46
- 239000012790 adhesive layer Substances 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 29
- 230000001681 protective effect Effects 0.000 claims abstract description 29
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000002035 prolonged effect Effects 0.000 claims abstract description 7
- 238000007747 plating Methods 0.000 claims abstract description 3
- 239000003292 glue Substances 0.000 claims description 54
- 239000004744 fabric Substances 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 230000035699 permeability Effects 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 4
- 239000004005 microsphere Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 description 6
- 239000004088 foaming agent Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
- G02B5/126—Reflex reflectors including curved refracting surface
- G02B5/128—Reflex reflectors including curved refracting surface transparent spheres being embedded in matrix
-
- 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
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a reflective film coating process, the structure of the reflective film produced by the process comprises a base layer, a composite adhesive layer is arranged on the base layer, metal powder is distributed on the bottom surface of the composite adhesive layer, the upper half part of the composite adhesive layer is bonded with glass beads, a protective film covers the glass beads, most of the volume of the glass beads is pressed into the composite adhesive layer through the matching of a plurality of groups of cooling rollers, so that the situation that the glass beads fall off due to the increase of the service life is avoided, and meanwhile, the mode of completely plating the surface of the glass beads is adopted, so that even if the metal film on the outward side is ground off, the metal film on the inward side can still play a reflective effect, and the service life is greatly prolonged.
Description
Technical Field
The invention relates to the field of reflective film processing, in particular to a reflective film coating process.
Background
Currently, chinese patent No.: CN201911136900.8 discloses a water-repellent breathable reflective fabric, which comprises: the base cloth layer is a cloth base made by adopting a porous weaving method, and air holes are uniformly distributed on the cloth base; the glue layer is added with a chemical foaming agent, and the mass ratio of the glue in the glue layer to the chemical foaming agent is 1: 0.1-0.3; the mass ratio of the reflective particles to the glue is 1: 10-40; the glue layer is condensed between the reflective particles and the base cloth layer; the waterproof breathable reflective cloth adopts the porous weaving method to produce the cloth base, and the base cloth produced by the method is uniformly distributed with a plurality of breathable small holes, so that the reflective cloth has good breathability; meanwhile, a chemical foaming agent is added into the glue, and a porous thin layer is formed under the extrusion action of a roller, so that one or more reflective particles can be well semi-wrapped and adhered, and the reflective particles are condensed on a certain part of the surface of the reflective particles contacted with the base cloth layer, and are not easy to overflow and diffuse, and the reflective particles are not easy to move, fall off and the like;
chinese patent No.: CN201910658363.7 discloses a positive black high-brightness reflective fabric and a preparation method thereof, comprising a substrate layer, wherein a composite adhesive layer is arranged on the substrate, a black color tone layer is arranged on the composite adhesive layer, a reflective layer is arranged on the black color tone layer, the reflective layer is composed of a metal reflective layer and a glass bead layer which are evaporated on glass beads, and black light-absorbing compositions are filled among the glass beads. The positive black high-brightness reflective cloth displays positive black under sunlight, displays a reflective effect under a retro-reflection state, has a very obvious effect on improving the visibility of a wearer at night or in an environment with poor sight, and greatly improves the use of clothes or textiles in consumer products; however, in the prior art, the problems that most of glass beads are directly exposed, the glass beads are easy to fall off after long-time use and the service life is short still exist in the actual use process.
Disclosure of Invention
Therefore, in order to solve the above problems, the present invention provides a reflective film coating process, which solves the technical problems that most of glass beads are directly exposed, and after long-term use, the glass beads are easy to fall off and have short service life.
In order to achieve the purpose, the invention adopts the following technical scheme: a reflective film coating process comprises the following steps:
1) the base layer is dedusted and preheated, so that the rapid cooling after glue coating is avoided, and the operable time is prolonged;
2) coating bottom layer glue, wherein the thickness of the bottom layer glue is lower, and the bottom layer glue is only used for filling gaps on the upper surface of the base cloth, so that the using amount of metal powder is reduced, and meanwhile, the light reflecting effect is improved;
3) before the bottom layer glue is not completely cooled or dried, coating metal powder to enable the metal powder to be adhered to the upper surface of the bottom layer glue;
4) laying a layer of thick composite adhesive layer above the metal powder for bonding the glass beads;
5) removing the glue on the over-thick part by a scraper;
6) after the glass beads are pretreated, plating a metal reflecting layer on the surfaces of the glass beads;
7) directly using the protective film to be covered finally as a bead planting film, adopting glue with lower adhesiveness to stick the glass beads which are uniformly and densely distributed on the protective film, and then covering the protective film above the composite glue layer;
8) and pressing the glass beads into the composite glue layer through a cooling roller, and cooling and solidifying the glue.
Further, the structure of the reflective film produced by the process comprises a base layer, wherein a composite adhesive layer is arranged on the base layer, metal powder is distributed on the bottom surface of the composite adhesive layer, the upper half part of the composite adhesive layer is bonded with the glass beads, and a protective film covers the glass beads.
Furthermore, the composite glue layer and the protective film are both transparent structures.
Furthermore, the protective film is a PE film or a PVC film with good air permeability.
Further, the metal reflective layer can be coated on only the outward side of the glass beads or coated in the whole.
Furthermore, only a small area of the glass beads facing downwards in the step 7 is bonded with the composite glue layer, and the volume of the glass beads is larger than 60% in the glue through the step 8.
Furthermore, the cooling rollers are at least provided with 2 groups of rollers, the first group of rollers is used for pressing the glass beads into the glue, the second group of rollers is used for cooling, and the temperature of the first group of rollers is controlled according to the cooling efficiency of the glue.
Furthermore, an infrared heat preservation device is arranged at the front end of the cooling roller.
Further, the protective film is a porous structure.
By adopting the technical scheme, the invention has the beneficial effects that: the reflective film coating process improves the condition that most of glass beads are directly exposed, easily fall off after long-time use and have short service life, most of the volume of the glass beads are pressed into the composite adhesive layer through the matching of a plurality of groups of cooling rollers, so that the condition that the glass beads fall off when the use time is prolonged is avoided, and meanwhile, the reflective film coating process adopts a mode of coating all the surfaces of the glass beads, so that the reflective effect can be still achieved on the metal film on the inward side even if the metal film on the outward side is ground off, and the service life is greatly prolonged; furthermore, the bottom layer glue is arranged, so that the waste of metal powder is reduced, and the production cost is reduced; furthermore, the protective film with good air permeability or the protective film with a porous structure is adopted, so that the situation that the protective film is broken under the action of air pressure in the process of pressing the glass beads into the glue can be effectively avoided.
Drawings
FIG. 1 is a schematic structural view of a product of the present invention;
fig. 2 is a schematic view of the structure of the light-reflecting film of the present invention through step 8.
In the figure: 1. a protective film; 2. glass beads; 3. compounding a glue layer; 4. bottom glue; 5. a base layer.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 2, the present embodiment provides a reflective film coating process, including the following steps:
1) the base layer 5 is dedusted and preheated, so that the composite glue layer 3 is prevented from being rapidly cooled after being coated, and the operable time is prolonged. Wherein, too high a temperature may cause the base layer 5 to be deformed by heat, and low a temperature may facilitate rapid cooling, so that it is preferable to heat the base layer 5 to between 40 ℃ and 60 ℃, and in one embodiment, to heat the base layer 5 to about 45 ℃.
2) Coating bottom glue 4, bottom glue 4's thickness is lower, only is used for filling the space of base cloth upper surface, reduces the quantity of metal powder, improves reflection of light effect simultaneously. Preferably, the thickness of the bottom glue 4 is 50-150 micrometers, and in one embodiment, the thickness of the bottom glue 4 is 80 micrometers.
3) Before the primer glue 4 is not completely cooled or dried, the metal powder is coated to be adhered to the upper surface of the primer glue 4.
4) And a layer of composite glue layer 3 with a relatively thick thickness is laid above the metal powder for bonding the glass beads 2. The thickness of the composite adhesive layer 3 is 100-200 micrometers, and in one embodiment, the thickness of the composite adhesive layer 3 is 130 micrometers.
5) Removing the composite glue layer 3 of the over-thick part by a scraper;
6) after the glass beads 2 are pretreated, a metal reflecting layer is plated on the surfaces of the glass beads 2;
7) directly using the protective film 1 to be covered last as a bead planting film, adhering the glass beads 2 which are uniformly and densely distributed on the protective film 1 by adopting a composite adhesive layer 3 with lower adhesiveness, and then covering the protective film 1 above the composite adhesive layer 3;
8) and pressing the glass beads 2 into the composite adhesive layer 3 through a cooling roller, and cooling and solidifying the composite adhesive layer 3.
The structure of the reflective film produced by adopting the process comprises a base layer 5, wherein a composite adhesive layer 3 is arranged on the base layer 5, metal powder is distributed on the bottom surface of the composite adhesive layer 3, the upper half part of the composite adhesive layer 3 is bonded with the glass beads 2, and the protective film 1 covers the glass beads 2.
The composite glue layer 3 and the protective film 1 are both transparent structures, and the protective film 1 is a PE film or a PVC film with good air permeability.
The metal reflecting layer can only be coated on one side of the glass beads 2 facing outwards or coated integrally, in the embodiment, the metal reflecting layer on the outer side can still play a role in reflecting light after being worn by adopting an integral coating mode, the service life is prolonged, and the reflection attenuation is reduced.
In the step 7, only a small downward area of the glass beads 2 is bonded with the composite adhesive layer 3, and in the step 8, more than 60% of the volume of the glass beads 2 is in the composite adhesive layer 3, and in actual production, 60% of the volume is still less in the composite adhesive layer 3 and is the lowest limit value, and in general, in order to achieve the optimal fixing effect, at least more than 80% of the glass beads are partially compounded in the adhesive layer 3 after the step 8.
The cooling roller is provided with at least 2 groups of rollers, the first group is used for pressing the glass beads 2 into the composite glue layer 3, the second group is used for cooling, and the temperature of the first group of cooling roller is controlled according to the cooling efficiency of the composite glue layer 3.
The front end of the cooling roller is also provided with an infrared heat preservation device, when the temperature of the composite adhesive layer 3 is lower, the infrared heat preservation device can be opened to heat the composite adhesive layer 3, and the situation that the glass beads 2 are crushed by the composite adhesive layer 3 in a pressing process due to hard pressing is avoided.
In this embodiment, the protective film 1 has a porous structure.
Most of the volume of the glass beads 2 is pressed into the composite adhesive layer 3 through the matching of a plurality of groups of cooling rollers, so that the condition that the glass beads 2 fall off due to the increase of the using time is avoided, the bottom layer glue 4 is arranged, the waste of metal powder is reduced, and the production cost is reduced; by adopting the protective film 1 with good air permeability or directly adopting the protective film 1 with a porous structure, the situation that the protective film 1 is broken under the action of air pressure in the process of pressing the glass beads 2 into the composite glue layer 3 can be effectively avoided.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. A reflective film coating process is characterized in that: the method comprises the following steps:
1) the base layer is dedusted and preheated, so that the rapid cooling after glue coating is avoided, and the operable time is prolonged;
2) coating bottom glue for filling the gap on the upper surface of the base cloth, reducing the using amount of metal powder and improving the light reflecting effect;
3) before the bottom layer glue is not completely cooled or dried, coating metal powder to enable the metal powder to be adhered to the upper surface of the bottom layer glue;
4) laying a layer of thick composite adhesive layer above the metal powder for bonding the glass beads;
5) removing the glue on the over-thick part by a scraper;
6) after the glass beads are pretreated, plating a metal reflecting layer on the surfaces of the glass beads;
7) directly using the protective film to be covered finally as a bead planting film, adopting glue with lower adhesiveness to stick the glass beads which are uniformly and densely distributed on the protective film, and then covering the protective film above the composite glue layer;
8) and pressing the glass beads into the composite glue layer through a cooling roller, and cooling and solidifying the glue.
2. The reflective film coating process according to claim 1, wherein: the structure of the reflective film produced by the process comprises a base layer, wherein a composite adhesive layer is arranged on the base layer, metal powder is distributed on the bottom surface of the composite adhesive layer, the upper half part of the composite adhesive layer is bonded with glass beads, and a protective film covers the glass beads.
3. The reflective film coating process according to claim 1, wherein: the composite glue layer and the protective film are both transparent structures.
4. The reflective film coating process according to claim 1, wherein: the protective film is a PE film or a PVC film with good air permeability.
5. The reflective film coating process according to claim 1, wherein: the metal reflective layer can be coated on only one side of the glass microspheres facing outwards or coated integrally.
6. The reflective film coating process according to claim 1, wherein: and (3) only a small downward area of the glass beads in the step (7) is bonded with the composite glue layer, and the volume of the glass beads is more than 60% in the glue through the step (8).
7. The reflective film coating process according to claim 1, wherein: the cooling roller is provided with at least 2 groups of rollers, the first group is used for pressing the glass beads into the glue, the second group is used for cooling, and the temperature of the first group of cooling rollers is controlled according to the cooling efficiency of the glue.
8. The reflective film coating process according to claim 1, wherein: and the front end of the cooling roller is also provided with an infrared heat preservation device.
9. The reflective film coating process according to claim 1, wherein: the protective film is of a porous structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010857837.3A CN114089456A (en) | 2020-08-24 | 2020-08-24 | Reflective film coating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010857837.3A CN114089456A (en) | 2020-08-24 | 2020-08-24 | Reflective film coating process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114089456A true CN114089456A (en) | 2022-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010857837.3A Pending CN114089456A (en) | 2020-08-24 | 2020-08-24 | Reflective film coating process |
Country Status (1)
| Country | Link |
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| CN (1) | CN114089456A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1771462A (en) * | 2003-05-26 | 2006-05-10 | 夏普株式会社 | Reflection type screen |
| CN101508225A (en) * | 2009-03-09 | 2009-08-19 | 何庭佳 | Glass reflective film composite plate |
| CN107065051A (en) * | 2017-04-18 | 2017-08-18 | 合肥路明反光材料有限公司 | A kind of seven color reflective single sided stretch fabrics |
-
2020
- 2020-08-24 CN CN202010857837.3A patent/CN114089456A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1771462A (en) * | 2003-05-26 | 2006-05-10 | 夏普株式会社 | Reflection type screen |
| CN101508225A (en) * | 2009-03-09 | 2009-08-19 | 何庭佳 | Glass reflective film composite plate |
| CN107065051A (en) * | 2017-04-18 | 2017-08-18 | 合肥路明反光材料有限公司 | A kind of seven color reflective single sided stretch fabrics |
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