CN114905755A - Preparation process and application of bead-planted film for retroreflective material - Google Patents
Preparation process and application of bead-planted film for retroreflective material Download PDFInfo
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- CN114905755A CN114905755A CN202110836919.4A CN202110836919A CN114905755A CN 114905755 A CN114905755 A CN 114905755A CN 202110836919 A CN202110836919 A CN 202110836919A CN 114905755 A CN114905755 A CN 114905755A
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- 239000000463 material Substances 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000011324 bead Substances 0.000 claims abstract description 79
- 238000001035 drying Methods 0.000 claims abstract description 38
- 239000002131 composite material Substances 0.000 claims abstract description 29
- 238000012546 transfer Methods 0.000 claims abstract description 28
- 239000003292 glue Substances 0.000 claims abstract description 26
- 239000011521 glass Substances 0.000 claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims abstract description 18
- 239000000853 adhesive Substances 0.000 claims abstract description 16
- 230000001070 adhesive effect Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000007731 hot pressing Methods 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000003851 corona treatment Methods 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229920000058 polyacrylate Polymers 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 2
- 239000011118 polyvinyl acetate Substances 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract description 11
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 11
- 238000005406 washing Methods 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 3
- -1 polyethylene terephthalate Polymers 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000010981 drying operation Methods 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000013329 compounding Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009474 hot melt extrusion Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/024—Thermal pre-treatments
- B29C66/0242—Heating, or preheating, e.g. drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/028—Non-mechanical surface pre-treatments, i.e. by flame treatment, electric discharge treatment, plasma treatment, wave energy or particle radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/746—Joining plastics material to non-plastics material to inorganic materials not provided for in groups B29C66/742 - B29C66/744
- B29C66/7465—Glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Optical Elements Other Than Lenses (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to IPC B32B37/02, in particular to a preparation process and application of a bead-planted film for a retroreflective material. The method comprises the following specific steps: (1) carrying out corona treatment on the transfer pasting film, unreeling and coating bead-planting glue on the corona surface of the transfer pasting film to obtain a composite layer A; (2) drying the composite layer A in a drying tunnel, and then carrying out bead planting on the upper layer of the bead planting glue to obtain a composite layer B; (3) and carrying out hot pressing and rolling on the composite layer B to obtain a finished product of the bead planting film. The invention provides a preparation process of a bead-planted film for a retroreflective material, which realizes effective combination of a PET (polyethylene terephthalate) base material and glass beads. The planting bead glue with specific specifications is coated on the PET transfer film, and is embedded with the glass beads after being subjected to the action of a specific program drying tunnel, the planting bead glue is effectively connected with the transfer film and the glass beads, the obtained planting bead film is high in adhesive force and strong in water washing resistance, the colorful effect of the reflective garment can be improved, and the service life of the reflective garment is prolonged.
Description
Technical Field
The invention relates to IPC B32B37/02, in particular to a preparation process and application of a bead-planted film for a retroreflective material.
Background
Beaded film is an essential material for making retroreflective materials. With the improvement of national security consciousness and aesthetic consciousness, the application of the retroreflective material to the clothes becomes a popular choice in the market. With the increasingly complex application conditions and range of the retroreflective material, higher requirements are also put forward on the bead-planted film, and the subsequent use performance of the retroreflective material is determined by the performance of the bead-planted film to a great extent. Chinese patent CN201710179409.8 discloses a reflective bead-planting film and a manufacturing process thereof, wherein an adhesive or a hot melt adhesive and polyethylene are attached to a substrate by coating or hot melt extrusion, and glass beads with different specifications are selected and mixed in proportion to be embedded in a bead-planting layer, thereby realizing the bead-planting process. This prior art aims at promoting the contrary reflectance of planting the pearl membrane, but to daily reflection of light dress, the water washability is the performance that the clothing material is necessary, and current reflection of light clothing is after washing many times glass bead drops easily, and reflection of light effect is difficult to keep. Based on the above, the preparation of the bead-planted film for the retroreflective material, which has strong adhesion, strong washing resistance and simple and convenient process, becomes an urgent problem to be solved in the field.
Disclosure of Invention
The invention provides a preparation process of the bead planting film for the retroreflective material, solves the problems that in the prior art, glass beads are easy to fall off after the existing retroreflective clothes are washed for many times, and the reflective effect is difficult to maintain, and realizes the bead planting film for the retroreflective material, which has strong adhesion, strong water washing resistance and simple and convenient process.
The invention provides a preparation process of a bead-planted film for a retroreflective material, which comprises the following specific steps:
(1) carrying out corona treatment on the transfer pasting film, unreeling and coating bead-planting glue on the corona surface of the transfer pasting film to obtain a composite layer A;
(2) drying the composite layer A in a drying tunnel, and then carrying out bead planting on the upper layer of the bead planting glue to obtain a composite layer B;
(3) and carrying out hot pressing and rolling on the composite layer B to obtain a bead planting film finished product.
In some preferred embodiments, the bead filler is one or more of polyurethane, polyacrylate, epoxy, EVA, polyamide, polyester, polyvinyl acetate, and polyvinyl chloride.
In order to improve the bonding capability of the bead-planting glue and the transfer printing film, it is further preferable that the bead-planting glue is polyacrylate.
In some preferred embodiments, the mass percentage of the non-volatile substances in the bead planting gel is 20-30%.
In order to regulate and control the dry glue thickness of the required bead planting film, it is further preferable that the mass percentage of non-volatile substances in the bead planting glue is 22-28%.
Examples of the bead-planting adhesive include, but are not limited to, H25 type bead-planting adhesive and H27 type bead-planting adhesive of hangzhou star wara reflective material gmbh.
In some preferred embodiments, the transfer film is made of PET, which is available from starwark reflective materials, inc.
In some preferred embodiments, the coating amount of the bead filler is 20-45g/m 2 。
More preferably, the gluing amount in the bead planting glue coating process is 25-30g/m 2 。
In some preferred embodiments, the unwinding tension of the transfer film in the step (1) is 40 to 70N.
In some preferred embodiments, the unwinding tension of the transfer film in the step (1) is 55 to 65N.
In some preferred embodiments, the drying temperature of the drying tunnel in the step (2) is 40-160 ℃.
In some preferred embodiments, the drying operation of the drying tunnel in step (2) is specifically that the composite layer is sequentially driven through 6 temperature zones, and the working conditions of the 6 temperature zones are respectively as follows:
the temperature of the No. 1 temperature zone is 40-95 ℃, and the rotating speed of a fan of the drying oven is 500-;
the temperature of the No. 2 temperature zone is 75-110 ℃, and the rotating speed of a fan of the drying oven is 500-;
the temperature of the No. 3 temperature zone is 90-120 ℃, and the rotating speed of a fan of the drying oven is 500-;
the temperature of the No. 4 temperature zone is 135-160 ℃, and the rotating speed of the fan of the drying oven is 700-1200 r/min;
the temperature of the No. 5 temperature zone is 115-135 ℃, and the rotating speed of the fan of the drying oven is 700-1200 r/min;
the temperature of the No. 6 temperature zone is 100-.
Further preferably, the working conditions of the 6 temperature zones are respectively as follows:
the temperature of the No. 1 temperature zone is 70 ℃, and the rotating speed of a fan of the oven is 600 r/min;
the temperature of the No. 2 temperature zone is 90 ℃, and the rotating speed of a fan of the oven is 600 r/min;
the temperature of the No. 3 temperature zone is 105 ℃, and the rotating speed of a fan of the oven is 600 r/min;
the temperature of the No. 4 temperature zone is 140 ℃, and the rotating speed of a fan of the drying oven is 1000 r/min;
the temperature of the No. 5 temperature zone is 120 ℃, and the rotating speed of a fan of the oven is 1000 r/min;
the temperature of the No. 6 temperature zone is 115 ℃, and the rotating speed of a fan of the oven is 800 r/min.
In some preferred embodiments, the driving speed of the composite layer in the drying tunnel in the step (2) is 8-30 m/min.
Further preferably, the transmission speed of the composite layer in the drying tunnel in the step (2) is 10-20 m/min.
In some preferred embodiments, the bead planting operation in step (2) is specifically: implanting glass beads into the bead-planting glue; the temperature of the planted beads is 45-80 ℃.
Further preferably, the temperature of the planting beads is 50-75 ℃.
As examples of the glass beads, there are included, but not limited to, glass beads of types 72-82-C9, 350-400-C9 of Liangbo New materials Ltd.
Retroreflective materials achieve light retroreflection by compounding particles having a high refractive index with a substrate. According to the invention, a great deal of experimental researches show that the bead planting adhesive with specific solid content is coated on the PET transfer film, and further, the bead planting film with strong binding force and stable structure can be obtained by embedding the glass beads and the bead planting adhesive through a specific procedure of a drying tunnel. The material transmission of the invention is carried out by full-automatic equipment, the working efficiency is greatly improved, the mechanical tension of unreeling and reeling is controlled, the polyacrylate bead planting adhesive with specific solid content is fully combined with the PET transfer film and the glass beads, and the bead planting film formed after hot pressing and reeling has obvious water washing resistance; the diameter width of the bead planting film roll is controlled during rolling, so that the inner layer and the outer layer of the bead planting film are kept in an even stress state, wrinkles are not easy to generate, and the mechanical performance and the stability of the bead planting film are further improved. The bead planting film prepared by the invention is applied to the field of reflective clothes, and can be used for preparing reflective clothes products with high brightness, colorful performance and lasting use.
In some preferred embodiments, in the rolling operation of step (3), the roll diameter is 1-5 dm.
In order to prevent the bead planting film from wrinkling during rolling, it is further preferable that the rolling diameter is 2dm during the rolling operation.
In some preferred embodiments, the temperature of the hot pressing in step (3) is 100-135 ℃, preferably 115-120 ℃.
In some preferred embodiments, in the winding operation in the step (3), the winding tension is 15 to 30N, and the compensation tension is 10 to 30N.
In some preferred embodiments, the transfer film has a thickness of 100-300 um.
Further preferably, the thickness of the transfer film is 150-200 um.
In a second aspect, the present invention provides the use of a bead-planted film for retroreflective material in the manufacture of a garment-type retroreflective material.
Has the advantages that:
the invention provides a preparation process of a bead-planted film for a retroreflective material, which adopts a specific compounding method to realize effective combination of a PET (polyethylene terephthalate) substrate and glass beads and provides convenience for applying the subsequent bead-planted film to retroreflective clothing. The invention adopts the bead planting adhesive with specific specification to coat the PET transfer film, the bead planting adhesive is embedded with the glass beads after the action of a specific program drying tunnel, the bead planting adhesive is effectively connected with the transfer film and the glass beads, the obtained bead planting film has high adhesive force and strong water washing resistance, can improve the dazzling effect of the reflective garment, prolongs the service life of the reflective garment, and has positive significance for the technical development of the reflective garment.
Detailed Description
Example 1.
The embodiment provides a preparation process of a bead-planted film for a retroreflective material, which comprises the following specific steps:
(1) carrying out corona treatment on the transfer pasting film, unreeling and coating bead-planting glue on the corona surface of the transfer pasting film to obtain a composite layer A;
(2) drying the composite layer A in a drying tunnel, and then carrying out bead planting on the upper layer of the bead planting glue to obtain a composite layer B;
(3) and carrying out hot pressing and rolling on the composite layer B to obtain a finished product of the bead planting film.
The material of the transfer film is PET, and is sourced from Hangzhou Xinghua reflective material GmbH.
The bead-planting glue is polyacrylate; in particular to H25 type bead-planting adhesive of Hangzhou Xinghua reflecting material GmbH, and the solid content is 25 percent.
When the bead planting glue is coated, the gluing amount is controlled to be 30g/m under the action of the yellow wire rod 2 。
And (2) the unreeling tension of the transfer film in the step (1) is 60N.
The drying operation of the drying tunnel in the step (2) is specifically that the composite layer is sequentially transmitted through 6 temperature zones (the sequence is from 1 to 6), and the working conditions of the 6 temperature zones are respectively as follows:
the temperature of the No. 1 temperature zone is 70 ℃, and the rotating speed of a fan of the drying oven is 600 r/min;
the temperature of the No. 2 temperature zone is 90 ℃, and the rotating speed of a fan of the oven is 600 r/min;
the temperature of the No. 3 temperature zone is 105 ℃, and the rotating speed of a fan of the oven is 600 r/min;
the temperature of the No. 4 temperature zone is 140 ℃, and the rotating speed of a fan of the drying oven is 1000 r/min;
the temperature of the No. 5 temperature zone is 120 ℃, and the rotating speed of a fan of the oven is 1000 r/min;
the temperature of the No. 6 temperature zone is 115 ℃, and the rotating speed of a fan of the oven is 800 r/min.
And (3) in the step (2), the transmission speed of the composite layer in the drying tunnel is 12 m/min.
The bead planting operation in the step (2) is specifically as follows: implanting glass beads into the bead-planting glue; the temperature of the planted beads was 50 ℃.
The glass beads are particularly 72-82-C9 type glass beads of Dazhou Liangbo New Material science and technology Co.
And in the rolling operation in the step (3), the rolling diameter is 2 dm.
The temperature of the hot pressing in the step (3) is 115 ℃.
And (4) in the winding operation in the step (3), the winding tension is 20N, and the compensation tension is 20N.
The thickness of the transfer film is 175 um.
Example 2.
The embodiment provides a preparation process of a bead-planted film for a retroreflective material, which comprises the following specific steps:
(1) carrying out corona treatment on the transfer film, unreeling and coating bead-planting glue on the corona surface of the transfer film to obtain a composite layer A;
(2) drying the composite layer A in a drying tunnel, and then carrying out bead planting on the upper layer of the bead planting glue to obtain a composite layer B;
(3) and carrying out hot pressing and rolling on the composite layer B to obtain a finished product of the bead planting film.
The material of the transfer film is PET, and is sourced from Hangzhou Xinghua reflective material GmbH.
The bead planting glue is polyacrylate; in particular to H27 type bead-planting adhesive of Hangzhou Xinghua reflecting material GmbH, and the solid content is 27 percent.
When the bead planting glue is coated, the gluing amount is controlled to be 25g/m under the action of a red wire rod 2 。
And (2) the unreeling tension of the transfer film in the step (1) is 60N.
The drying operation of the drying tunnel in the step (2) is specifically that the composite layer is sequentially transmitted through 6 temperature zones (the sequence is from 1 to 6), and the working conditions of the 6 temperature zones are respectively as follows:
the temperature of the No. 1 temperature zone is 70 ℃, and the rotating speed of a fan of the oven is 600 r/min;
the temperature of the No. 2 temperature zone is 90 ℃, and the rotating speed of a fan of the oven is 600 r/min;
the temperature of the No. 3 temperature zone is 105 ℃, and the rotating speed of a fan of the oven is 600 r/min;
the temperature of the No. 4 temperature zone is 140 ℃, and the rotating speed of a fan of the drying oven is 1000 r/min;
the temperature of the No. 5 temperature zone is 120 ℃, and the rotating speed of a fan of the oven is 1000 r/min;
the temperature of the No. 6 temperature zone is 115 ℃, and the rotating speed of a fan of the oven is 800 r/min.
And (3) in the step (2), the transmission speed of the composite layer in the drying tunnel is 18 m/min.
The bead planting operation in the step (2) is specifically as follows: implanting glass beads into the bead-planting glue; the temperature of the planted beads was 70 ℃.
The glass beads are specifically 350-400-C9 type glass beads of Dazhou Liangbo New Material science and technology Co.
And in the rolling operation in the step (3), the rolling diameter is 2 dm.
The temperature of the hot pressing in the step (3) is 120 ℃.
And (4) in the rolling operation in the step (3), the rolling tension is 20N, and the compensation tension is 20N.
The thickness of the transfer film is 175 um.
Example 3.
The embodiment provides a preparation process of a bead-planted film for a retroreflective material, and the specific implementation manner is the same as that of embodiment 1; the difference is that the temperature of the No. 4 temperature zone is 130 ℃.
Example 4.
The embodiment provides a preparation process of a bead-planted film for a retroreflective material, and the specific implementation mode is the same as that of embodiment 1; the difference lies in that in the rolling operation in the step (3), the rolling diameter is 5 dm.
Example 5.
The embodiment provides a preparation process of a bead-planted film for a retroreflective material, and the specific implementation manner is the same as that of embodiment 1; the difference is that the bead-planting glue is polyurethane; in particular to BX-405 bead-planting adhesive of Hangzhou Xinghua reflecting material GmbH, wherein the solid content is 45 percent.
Performance test method
1. Water wash resistance test:
the bead-planted films for retroreflective materials prepared in examples 1 to 5 were placed in a washing machine at a solid-to-liquid ratio of 1: 3, adding water with the temperature of 40 ℃, adding a liquid laundry detergent with the water volume of 1/100, starting stirring to simulate washing for 20min, removing water at the speed of 1200r/min, washing for 10 times according to the program, and observing whether the bead planting film has the phenomenon of shedding of glass beads or degumming of a film layer after washing for 10 times; and marking that no glass bead falls off or the film layer is degummed as qualified, and marking that the glass bead falls off or the film layer is degummed as unqualified.
Performance test data
TABLE 1 Performance test results
| Water washing resistance | |
| Example 1 | Qualified |
| Example 2 | Qualified |
| Example 3 | Fail to be qualified |
| Example 4 | Fail to be qualified |
| Example 5 | Fail to be qualified |
Claims (10)
1. A preparation process of a bead-planted film for a retroreflective material is characterized by comprising the following specific steps:
(1) carrying out corona treatment on the transfer pasting film, unreeling and coating bead-planting glue on the corona surface of the transfer pasting film to obtain a composite layer A;
(2) drying the composite layer A in a drying tunnel, and then carrying out bead planting on the upper layer of the bead planting glue to obtain a composite layer B;
(3) and carrying out hot pressing and rolling on the composite layer B to obtain a finished product of the bead planting film.
2. The process of claim 1, wherein the bead bond adhesive is one or more of polyurethane, polyacrylate, epoxy, EVA, polyamide, polyester, polyvinyl acetate, and polyvinyl chloride.
3. The process of claim 1 or 2, wherein the non-volatile material is present in the bead bond in an amount of 20 to 30% by weight.
4. The process of any of claims 1-3, wherein the bead bond is applied in an amount of 20-45g/m 2 。
5. The process for preparing a bead-planted film for retroreflective material as set forth in any of claims 1 to 4, wherein the unwinding tension of the transfer film in the step (1) is 40 to 70N.
6. The process for preparing a bead-planted film for retroreflective material according to any one of claims 1-5, wherein the drying temperature of the drying tunnel in the step (2) is 40-160 ℃.
7. The process of claim 6, wherein the drying step (2) comprises sequentially passing the composite layer through 6 temperature zones under the following conditions:
the temperature of the No. 1 temperature zone is 40-95 ℃, and the rotating speed of a fan of the drying oven is 500-;
the temperature of the No. 2 temperature zone is 75-110 ℃, and the rotating speed of a fan of the drying oven is 500-;
the temperature of the No. 3 temperature zone is 90-120 ℃, and the rotating speed of a fan of the drying oven is 500-;
the temperature of the No. 4 temperature zone is 135-160 ℃, and the rotating speed of the fan of the drying oven is 700-1200 r/min;
the temperature of the No. 5 temperature zone is 115-135 ℃, and the rotating speed of the fan of the drying oven is 700-1200 r/min;
the temperature of the No. 6 temperature zone is 100-.
8. The process for preparing a bead-planted film for retroreflective material as claimed in claim 7, wherein the driving speed of the composite layer in the drying tunnel in step (2) is 8-30 m/min.
9. The process for preparing a bead-planted film for retroreflective material according to any one of claims 1-8, wherein the bead-planting operation in step (2) is specifically: implanting glass beads into the bead-planting glue; the temperature of the planted beads is 45-80 ℃.
10. Use of a process for the preparation of a beaded film for retroreflective materials according to any of claims 1-9 in apparel-type retroreflective materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110836919.4A CN114905755B (en) | 2021-07-23 | 2021-07-23 | Preparation process and application of bead-implanted film for retroreflective material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110836919.4A CN114905755B (en) | 2021-07-23 | 2021-07-23 | Preparation process and application of bead-implanted film for retroreflective material |
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| CN114905755A true CN114905755A (en) | 2022-08-16 |
| CN114905755B CN114905755B (en) | 2024-03-26 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007495A (en) * | 2014-05-26 | 2014-08-27 | 杭州星华反光材料有限公司 | High solid content water-based adhesive bead planting process and production line |
| CN108891182A (en) * | 2018-07-13 | 2018-11-27 | 浙江龙游道明光学有限公司 | A kind of production method of the reflective blocking film of automotive number plate |
| CN111650679A (en) * | 2020-06-17 | 2020-09-11 | 南阳市新长兴光学科技有限公司 | Processing technology of flexible washable reflective fabric |
| CN112596136A (en) * | 2020-12-17 | 2021-04-02 | 广东盈通新材料有限公司 | Washable reflective decorative film for textiles and preparation method thereof |
| CN112859221A (en) * | 2021-01-18 | 2021-05-28 | 合肥市辉耀真空材料有限责任公司 | Vacuum coating reflective product and preparation process thereof |
| CN113009607A (en) * | 2020-12-24 | 2021-06-22 | 杭州星华反光材料股份有限公司 | Single-color reflective material and manufacturing method thereof |
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2021
- 2021-07-23 CN CN202110836919.4A patent/CN114905755B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104007495A (en) * | 2014-05-26 | 2014-08-27 | 杭州星华反光材料有限公司 | High solid content water-based adhesive bead planting process and production line |
| CN108891182A (en) * | 2018-07-13 | 2018-11-27 | 浙江龙游道明光学有限公司 | A kind of production method of the reflective blocking film of automotive number plate |
| CN111650679A (en) * | 2020-06-17 | 2020-09-11 | 南阳市新长兴光学科技有限公司 | Processing technology of flexible washable reflective fabric |
| CN112596136A (en) * | 2020-12-17 | 2021-04-02 | 广东盈通新材料有限公司 | Washable reflective decorative film for textiles and preparation method thereof |
| CN113009607A (en) * | 2020-12-24 | 2021-06-22 | 杭州星华反光材料股份有限公司 | Single-color reflective material and manufacturing method thereof |
| CN112859221A (en) * | 2021-01-18 | 2021-05-28 | 合肥市辉耀真空材料有限责任公司 | Vacuum coating reflective product and preparation process thereof |
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