Manufacturing process of folding-resistant reflective film

Abstract

The invention discloses a folding-resistant reflective film manufacturing process, and belongs to the field of reflective films, and the folding-resistant reflective film manufacturing process comprises the following steps: S1, manufacturing a glass bead mold layer, S2, manufacturing a concave film layer, S3, manufacturing a convex film, S4, manufacturing a focusing layer, S5, manufacturing a color layer, S6, manufacturing a refraction and reflection layer, S7, manufacturing an anti-oxidation layer, S8, manufacturing a TPU bonding layer and S9, manufacturing a bottom film layer. The high cost input for manufacturing a roller is omitted, the glass bead mold layer can be repeatedly used after being torn off, the service life of the glass bead mold layer can be prolonged by more than three times at present, on one hand, the cost for manufacturing the mold roller is omitted, and the glass film layer manufactured by the product has the characteristic of softness and can play a role in cushioning during transportation and installation; and the conditions of difficult transportation and difficult installation are avoided.

Description

Technical Field

[0001] The invention discloses a process for manufacturing a folding-resistant reflective film, and belongs to the field of reflective films. Background Art

[0002] Reflective film, a film used to reflect light.

[0003] The existing production principle of refractive index reflective film is to use a precision engraving machine to carve protrusions the size of glass beads on a roller, and then produce it in a conventional way. However, this production method results in a very high cost for the roller. The processing cost of a roller is 300,000 yuan, and its yield rate does not exceed 70%. In addition, since the protrusions on the surface are very small, the roller itself is very delicate. In transportation and installation, if there is any carelessness, the entire roller will have to be scrapped. Therefore, in actual production, this technology cannot be implemented at all.

[0004] A new solution is now proposed to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a process for producing a refracting-resistant reflective film in order to solve the above-mentioned problems.

[0006] The present invention achieves the above-mentioned purpose through the following technical scheme, a process for producing a refracting-resistant reflective film, comprising the following steps: S1: Making a glass micro-bead mold layer, fixing the glass on the base material through plants to form a glass micro-bead mold layer; S2 concave film layer production, the glass bead mold layer in S1 is laid in a UV coating machine for UV glue coating and curing, after the curing is completed, the glass bead layer is peeled off to form a concave film layer, and the torn glass bead layer is recycled for secondary use; S3 convex film production, placing the concave mold layer from which the glass beads layer is peeled off in S2 in a coating machine, and then coating the high-transmittance light-gathering material on the surface of the concave mold layer after melting, and curing; S4 Focusing layer production, melting the high-transmittance material and then coating it on the surface of the convex film to solidify it to form a focusing layer; S5 color layer production, coating the nano polyurethane varnish on the surface of the focusing layer, and forming a color layer after it solidifies; S6: making a refractive reflective layer, placing the material made in S5 in a vacuum evaporation machine, and using aluminum wire to perform vacuum evaporation in a vacuum environment of -2 degrees, so that a refractive reflective layer is formed on the surface of the color layer; S7: making an anti-oxidation layer, placing the material made into the refractive reflective layer in S6 into a coating machine, and then coating the surface of the refractive reflective layer with high-density plastic polyurethane, and waiting for it to solidify to form an anti-oxidation layer; S8TPU bonding layer production, coating thermoplastic polyurethane TPU on the anti-oxidation layer to form a bonding layer; The S9 bottom film layer is made by bonding non-polar polypropylene as the bottom paper film to the TPU bonding layer; This product will be completed once S9 is completed.

[0007] Preferably, by removing step S1, the adhesive is coated on the coating roller of the coating machine, and then the plants are planted on the adhesive, and after the adhesive is solidified, protrusions with glass beads on the surface are formed, and then step S2 is continued.

[0008] Preferably, the glass microbead mold layer in S1 is specifically prepared by coating a polymer adhesive on a PET polyester film, and then baking it at 80±10°C for 2-4 minutes until the polymer adhesive forms a semi-cured state, and then implanting glass microbeads with a diameter 4-10 times the thickness of the adhesive, followed by curing at room temperature.

[0009] Preferably, the specific method of the S2 concave film layer is to place the prepared glass microbead mold layer on a UV molding machine, then evenly apply the prepared UV varnish on the glass microbead mold layer, and lay the PET polyester film on the UV varnish, and then irradiate with a UV light source for 2-5S for curing, and then peel off the glass microbead mold layer and the PET polyester film to complete the production of the concave mold layer.

[0010] Preferably, the concave mold layer adopts scratch-resistant and high-temperature resistant trifunctional UV varnish, the convex film adopts high-transparency, high-melting point and high and low temperature resistant polyurethane material, the focusing layer adopts high-transparency, high-melting point polyurethane material, the color layer adopts high-transparency and high-weathering resistant nano polyurethane varnish, the anti-oxidation layer adopts high-melting point and high-density plastic polyurethane, the adhesive layer adopts low-melting point, high-adhesion and low-temperature resistant thermoplastic polyurethane, and the base film layer adopts non-polar polypropylene.

[0011] Preferably, the light transmittance of the high-transparency, high-melting-point, high and low-temperature resistant polyurethane material is more than 90%, the temperature resistance is between -15-200°C, and the melting point is 180°C-200°C; the light transmittance of the high-transparency, high-melting-point polyurethane material is 90%, and the melting point is 170°C-190°C; the melting point range of the high-transparency and high-weather-resistant nano polyurethane varnish is 150°C-170°C; the Shore hardness value of the high-melting-point, high-density plastic polyurethane is in the range of 80-95 degrees, the melting point is between 150°C-170°C, and the density is above 1.3; the melting point range of the low-melting-point, high-adhesion, low-temperature resistant thermoplastic polyurethane is 80°C-100°C.

[0012] Compared with the prior art, the beneficial effects of the present invention are: through the production process, the high cost investment in making rollers is eliminated, and the glass microbead mold layer can be repeatedly used after tearing off, and its life can currently be more than 3 times. On the one hand, the cost of making mold rollers is eliminated, and the glass film layer formed by the product itself has the characteristics of softness, which can play a role in shock absorption during transportation and installation, avoiding the occurrence of difficult transportation and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a process flow chart of the present invention; Figure 2 It is a schematic diagram of the structure of the concave mold layer; Figure 3 Schematic diagram of the structure of the glass microbead mold layer. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0015] like Figure 1 As shown, a process for manufacturing a refracting-resistant reflective film comprises the following steps: S1: Making a glass micro-bead mold layer, fixing the glass on the base material through plants to form a glass micro-bead mold layer; S2 concave film layer production, the glass bead mold layer in S1 is laid in a UV coating machine for UV glue coating and curing, after the curing is completed, the glass bead layer is peeled off to form a concave film layer, and the torn glass bead layer is recycled for secondary use; S3 convex film production, placing the concave mold layer from which the glass beads layer is peeled off in S2 in a coating machine, and then coating the high-transmittance light-gathering material on the surface of the concave mold layer after melting, and curing; S4 Focusing layer production, melting the high-transmittance material and then coating it on the surface of the convex film to solidify it to form a focusing layer; S5 color layer production, coating the nano polyurethane varnish on the surface of the focusing layer, and forming a color layer after it solidifies; S6: making a refractive reflective layer, placing the material made in S5 in a vacuum evaporation machine, and using aluminum wire to perform vacuum evaporation in a vacuum environment of -2 degrees, so that a refractive reflective layer is formed on the surface of the color layer; S7: making an anti-oxidation layer, placing the material made into the refractive reflective layer in S6 into a coating machine, and then coating the surface of the refractive reflective layer with high-density plastic polyurethane, and waiting for it to solidify to form an anti-oxidation layer; S8TPU bonding layer production, coating thermoplastic polyurethane TPU on the anti-oxidation layer to form a bonding layer; The S9 bottom film layer is made by bonding non-polar polypropylene as the bottom paper film to the TPU bonding layer; This product will be completed once S9 is completed.

[0016] By removing step S1, the adhesive is coated on the coating roller of the coating machine, and then the plant is formed on the adhesive. After the adhesive is solidified, protrusions with glass beads on the surface are formed, and then the step S2 is continued.

[0017] like Figure 3 As shown in Example 1, the specific method of the glass microbead mold layer in S1 is to coat a polymer adhesive on a PET polyester film, bake it at 70°C for 4 minutes until the polymer adhesive forms a semi-cured state, and then implant glass microbeads with a diameter of 4 times the thickness of the adhesive, and then cure it at room temperature. In this way, the number of glass microbeads per unit area can be increased.

[0018] In Example 2, the glass microbead mold layer in S1 is specifically formed by coating a polymer adhesive on a PET polyester film, baking at 90°C for 2 minutes until the polymer adhesive forms a semi-cured state, and then implanting glass microbeads with a diameter 10 times the thickness of the adhesive, followed by curing at room temperature. This can increase the reflective effect.

[0019] like Figure 2 As shown in Example 3, the specific method of the S2 concave film layer is to place the prepared glass microbead mold layer on a UV molding machine, then evenly apply the prepared UV varnish on the glass microbead mold layer, and lay the PET polyester film on the UV varnish, and then irradiate with a UV light source for 2S to cure, and then peel off the glass microbead mold layer and the PET polyester film to complete the production of the concave mold layer.

[0020] Embodiment 4, the specific method of S2 concave film layer is to place the prepared glass microbead mold layer on a UV molding machine, then evenly apply the prepared UV varnish on the glass microbead mold layer, and lay the PET polyester film on the UV varnish, and then irradiate with UV light source for 5S for curing, and then peel off the glass microbead mold layer and the PET polyester film to complete the production of the concave mold layer.

[0021] like Figure 2 As shown, the concave mold layer adopts scratch-resistant and high-temperature resistant trifunctional UV varnish, the convex film adopts high-transparency, high-melting point and high and low-temperature resistant polyurethane material, the focusing layer adopts high-transparency, high-melting point polyurethane material, the color layer adopts high-transparency and high-weathering resistant nano polyurethane varnish, the anti-oxidation layer adopts high-melting point and high-density plastic polyurethane, the adhesive layer adopts low-melting point, high-adhesion and low-temperature resistant thermoplastic polyurethane, and the base film layer adopts non-polar polypropylene.

[0022] The light transmittance of the high-transparency, high-melting-point, high-and-low-temperature-resistant polyurethane material is more than 90%, the temperature resistance is between -15°C and 200°C, the melting point is 180°C-200°C, and the melting point of the material selected in this process is 200°C; the light transmittance of the high-transparency, high-melting-point polyurethane material is 90%, the melting point is 170°C-190°C, and the melting point of the material selected in this process is 190°C; the melting point range of the high-transparency and high-weather-resistant nano polyurethane varnish is 150°C-170°C, and the melting point of the material selected in this process is 170°C; the Shore hardness value range of the high-melting-point, high-density plastic polyurethane is 80-95 degrees, the melting point is between 150°C-170°C, and the density is above 1.3, and the Shore hardness of the material selected in this process is 95 degrees, the melting point is 170 degrees Celsius, and the density is 1.3; the melting point range of the low-melting-point, high-adhesion, low-temperature-resistant thermoplastic polyurethane is 80°C-100°C, and the melting point of the material selected in this process is 100°C.

[0023] In actual use, the concave mold layer of this product needs to be torn off to expose the convex film to the outside world, and the torn concave mold layer can also be used as an intermediate transition mold, further saving the cost of producing refraction-resistant reflective film.

[0024] The fold-resistant reflective film produced by the above process is low-cost, fold-resistant, wear-resistant, washable and non-falling. Compared with traditional glass beads, it has a huge improvement in actual use. The reflective effect meets the industry standard requirements of reflective film, and there is no dead beads in the glass beads.

[0025] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A process for producing a refracting-resistant reflective film, characterized in that: The following steps are involved: S1: Making a glass micro-bead mold layer, fixing the glass on the base material through plants to form a glass micro-bead mold layer; S2 concave film layer production, the glass bead mold layer in S1 is laid in a UV coating machine for UV glue coating and curing, after the curing is completed, the glass bead layer is peeled off to form a concave film layer, and the torn glass bead layer is recycled for secondary use; S3 convex film production, placing the concave mold layer from which the glass beads layer is peeled off in S2 in a coating machine, and then coating the high-transmittance light-gathering material on the surface of the concave mold layer after melting, and curing; S4 Focusing layer production, melting the high-transmittance material and then coating it on the surface of the convex film to solidify it to form a focusing layer; S5 color layer production, coating the nano polyurethane varnish on the surface of the focusing layer, and forming a color layer after it solidifies; S6: making a refractive reflective layer, placing the material made in S5 in a vacuum evaporation machine, and using aluminum wire to perform vacuum evaporation in a vacuum environment of -2 degrees, so that a refractive reflective layer is formed on the surface of the color layer; S7: making an anti-oxidation layer, placing the material made into the refractive reflective layer in S6 into a coating machine, and then coating the surface of the refractive reflective layer with high-density plastic polyurethane, and waiting for it to solidify to form an anti-oxidation layer; S8TPU bonding layer production, coating thermoplastic polyurethane TPU on the anti-oxidation layer to form a bonding layer; The S9 bottom film layer is made by bonding non-polar polypropylene as the bottom paper film to the TPU bonding layer; This product will be completed once S9 is completed.

2. The process for producing a refracting-resistant reflective film according to claim 1, characterized in that: By removing step S1, the adhesive is coated on the coating roller of the coating machine, and then the plant is formed on the adhesive. After the adhesive is solidified, protrusions with glass beads on the surface are formed, and then the step S2 is continued.

3. The process for producing a refracting-resistant reflective film according to claim 1, characterized in that: The specific method of the glass microbead mold layer in S1 is to coat a polymer adhesive on a PET polyester film, and then bake it at 80±10°C for 2-4 minutes until the polymer adhesive forms a semi-cured state, and then implant glass microbeads with a diameter 4-10 times the thickness of the adhesive, followed by curing at room temperature.

4. The process for producing a refracting-resistant reflective film according to claim 1, characterized in that: The specific method of the S2 concave film layer is to place the prepared glass microbead mold layer on a UV molding machine, then evenly apply the prepared UV varnish on the glass microbead mold layer, and lay the PET polyester film on the UV varnish, and then irradiate with a UV light source for 2-5S for curing, and then peel off the glass microbead mold layer and the PET polyester film to complete the production of the concave mold layer.

5. A process for producing a refracting-resistant reflective film according to any one of claims 1 to 4, characterized in that: The concave mold layer adopts scratch-resistant and high-temperature resistant trifunctional UV varnish, the convex film adopts high-transparency, high-melting point and high and low-temperature resistant polyurethane material, the focusing layer adopts high-transparency and high-melting point polyurethane material, the color layer adopts high-transparency and high-weathering resistant nano polyurethane varnish, the anti-oxidation layer adopts high-melting point and high-density plastic polyurethane, the adhesive layer adopts low-melting point, high-adhesion and low-temperature resistant thermoplastic polyurethane, and the base film layer adopts non-polar polypropylene.

6. The process for producing a refracting-resistant reflective film according to claim 5, characterized in that: Among them, the light transmittance of high-transparency, high-melting-point and high and low-temperature resistant polyurethane materials is more than 90%, the temperature resistance is between -15-200℃, and the melting point is 180℃-200℃; the light transmittance of high-transparency, high-melting-point polyurethane materials is 90%, and the melting point is 170℃-190℃; the melting point range of high-transparency and high-weather-resistant nano polyurethane varnish is 150℃-170℃; the Shore hardness value of high-melting-point and high-density plastic polyurethane ranges from 80-95 degrees, the melting point is between 150℃-170℃, and the density is above 1.3; the melting point range of low-melting-point, high-adhesion and low-temperature resistant thermoplastic polyurethane is 80℃-100℃.

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