KR100941324B1 - Process for preparing of silicone lampshade - Google Patents

Abstract

The present invention relates to a method for manufacturing a silicone lampshade, and more particularly, a) applying a primer to one side of a transparent film and preparing a transparent film by drying; b) Laminating the transparent film on the upper and lower layers of the light diffusing silicon by putting two sheets of the pre-treated transparent film of step a) with the primer-coated side facing inward and then inserting the light diffusing silicon between the two transparent films. Making; c) preparing a light diffusion sheet by adhering the light diffusion layer and the transparent film by curing or curing the silicon and crosslinking the primer by heating or pressing the laminate of step b); d) sanding one side of the light diffusion sheet of step c); And e) forming the sanding treatment surface of the light diffusion sheet to use the light diffusion extraction surface to produce a silicon lamp shade. The silicon lampshade manufactured by the present invention has a small impact when the fall occurs, the damage of the human life is small, and when the combustion occurs, the flame spreading rate is low, toxic substances are not generated and the sanding method is added to the light scattering effect There is an effect to improve more.

Light Diffusion, Silicon Sheet, Lampshade, Lighting, Light Diffusion

Description

Process for preparing silicone lampshade and silicone lampshade using the same

The present invention relates to a method for manufacturing a silicon lampshade for use as a cover for lighting and a silicon lampshade using the same.

On October 21, 1879, Edison completed the revolutionary carbon filament incandescent bulb and put it into practical use. Electric lighting plays a role as one of the means of bringing revolutionary productivity to human development.

Since the development of electric lighting fixtures, the importance of lampshades to protect the eyes by concentrating the light in one place and increasing the illumination level and preventing the eyes from being dazzled has also been repeated with the trial and error. Lampshades that provide illumination and light diffusion are used in daily life.

In fact, the conventional commercial lighting cover is mainly used acrylic resin of glass or thermoplastic resin, and in Korea Patent Publication No. 10-2006-0118677, lampshade using translucent colored glass as a material is known, domestic patent publication number 10-1999-0073130 and 10-2005-0000625 disclose lampshades using acrylic resins.

However, glass or thermoplastic acrylic resin, which is a conventional material, has a disadvantage in that damage to property and human life is caused by shocking people and objects when falling due to incorrect coupling with a top plate.

In particular, the surface of the glass material has a problem that can act as a great threat to the body while being scattered by breakage due to tensile stress due to invisible fine cracks.

In addition, PMMA, a thermoplastic acrylic resin mainly used as a lighting cover, has deformation of physical properties between 82 and 92 ° C, which is lower than 105 ° C, which is the maximum temperature of the lighting device. In the case of ignition between 287 ~ 298 ℃ is not suitable as a cover for a luminaire that requires heat resistance, and has a problem that is likely to ignite due to natural disasters such as short circuit or earthquake.

As described above, the conventional glass or thermoplastic acrylic resin has a problem of damage to property and life due to impact on people and objects when falling, and thermoplastic acrylic resin has a problem of deformation of physical properties due to heat generated from lighting fixtures.

Therefore, an object of the present invention is to prevent the impact when falling by using a cover for lighting by using silicon, and also to maintain the shape by wrapping the silicon surface with a transparent film, when the combustion occurs low flame spread rate The present invention provides a method for producing a silicone lampshade and a silicone lampshade using the same.

The present invention to achieve the above object

a) applying a primer to one side of the transparent film and drying to prepare a pre-treated transparent film;

b) Laminating the transparent film on the upper and lower layers of the light diffusing silicon by putting two sheets of the pre-treated transparent film of step a) with the primer-coated side facing inward and then inserting the light diffusing silicon between the two transparent films. Making;

c) preparing a light diffusion sheet by adhering the light diffusion layer and the transparent film by curing or curing the silicon and crosslinking the primer by heating or pressing the laminate of step b);

d) sanding one side of the light diffusion sheet of step c); And

e) manufacturing a silicon lampshade by molding the sanding surface of the light diffusion sheet to be used as the light diffusion extraction surface;

It provides a method of manufacturing a silicon lampshade comprising a.

In the present invention, the transparent film is not limited as long as the film is made of a resin of a transparent material, and specifically, for example, polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polycarbonate (PC), poly Methyl methacrylate (PMMA) and the like can be used.

As shown in FIG. 2, the present invention is composed of a triple layer having a light diffusing silicon layer between upper and lower transparent films, and the light diffusing silicon of step b) is composed of a mixture of a light diffusing agent and silicon.

Light diffusive silicon is the main component of the present invention, and the impact is small when the fall occurs compared to the glass used in the past, less personal injury and property damage, and the spread of the flame when the combustion occurs compared to the thermoplastic acrylic resin It has the advantage of low speed and no toxic substances. In addition, the light diffuser is used to enhance the effect of the lighting fixtures, so it scatters the light and makes the light of the lamp light milky, reducing the amount of ultraviolet rays generated, and lowering the intensity of shadows in the room due to light scattering. Anti-glare effect can be obtained.

The silicone used in the light-diffusing silicone may be any silicone as long as the silicone is heat cured, but may be polydimethylsiloxane, polydimethylsiloxane oil, silicon dioxide, dimethylsiloxane having a dimethylvinyl end group, trimethylated silica, and dimethyl. It is better to use methylvinylsiloxane having a vinyl terminal group, but to use a mixture containing a composition independent of each other to form more effective silicone properties.

The light diffusing agent used by mixing with the silicon in the light diffusing silicon is not limited to its use as long as it is a conventional light diffusing agent. Examples of the light diffusing agent that can be used include, as examples of organic light diffusing agents, homopolymers of silicone resins, acrylic resins, urethane resins, polyethylene resins, nylon resins, polystyrene resins, polycarbonate resins and polymethacrylate resins or these monomers. And copolymers thereof. Examples of the inorganic light diffusing agent include silica, alumina, glass, calcium carbonate, talc, mica, barium sulfate, zinc oxide, cesium oxide, titanium dioxide, iron oxide and mixtures thereof. However, it is preferable to use an organic light diffusing agent for organic mixing with silicon.

Silicon and the light diffusing agent used in the light diffusing silicon is preferably used 1 to 50 parts by weight of light diffusing agent per 100 parts by weight of silicon. If the composition of the light diffusing agent is 1 part by weight or less with respect to 100 parts by weight of silicon, the light scattering is low and the effect cannot be expected. If it is 50 parts by weight or more, the light scattering property is increased, but the light diffusing property is due to the properties of the light diffusing agent. Since the physical properties of silicon are inferior to the work process, it is preferable to use 1 to 50 parts by weight based on 100 parts by weight of silicon.

The mixing of the silicon and the light diffusing agent may be adjusted to suit the purpose by adjusting the mixing amount of the light diffusing agent according to the desired purpose.

On the other hand, the transparent film of step a) of the manufacturing method has the advantages of glass and plastic can obtain a high rigidity, to prevent the generation of static electricity, which is a disadvantage of silicon, and to maintain the shape by wrapping the silicon surface in the upper and lower layers There is this.

The thickness of the transparent film is used in a thickness of 0.1 to 0.5mm. If the thickness of the transparent film is 0.1mm or less, it is somewhat inferior to maintain the shape, and if the thickness of the transparent film is more than 0.5mm, the light diffusivity is slightly inferior because the light diffusivity is slightly inferior, so it is preferable to use a transparent film having a thickness of 0.1 to 0.5mm. good.

The method of integrating the transparent film and the light diffusing silicon uses a method of crosslinking and bonding using a primer.

The primer uses a silane coupling agent having high adhesion to silicone rubber, and examples of the silane coupling agent include vinyltrimethoxysilane, vinyltriethoxysilane, and vinylmethyldimethoxysilane. , Vinylmethyldiethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane (2- (3,4-Epoxycyclohexyl) ethyltrimethoxysilane), 3-glycidoxypropyltrimethoxysilane ( 3-Glycidoxypropyltrimethoxysilane, 3-Glycidoxypropylmethyldimethoxysilane, 3-Glycidoxypropyltriethoxysilane, 3-Glycidoxypropyltriethoxysilane, 3-Glycidoxypropyltriethoxysilane Glycidoxypropylmethyldiethoxysilane, 3-Methacrylpropyltrimethoxysilane, 3-Methacrylpropylmethyldimethoxysilane, 3 3-Methacrylpropyltriethoxysilane, 3-Methacrylpropylmethyldiethoxysilane, or a mixture of two or more thereof may be used, but is not limited thereto.

The primer is different from the method of coating according to the method of manufacturing the light diffusion sheet by heating or heating and pressurizing step c) of the manufacturing method. The coating method is applied using a coating roller when heat crosslinking using a calender, and applied to a nonwoven fabric during heat crosslinking by heating and press using a press. The coating amount of the primer is preferably used in a thickness of 0.001 to 0.05㎛. If it is less than 0.001㎛, it is difficult to expect the adhesive strength of the primer, if the thickness is 0.05㎛ or more, the gap between the transparent film and the light diffusing silicon is too wide, so that the effect of integration is reduced, it is preferable to apply a thickness of 0.001 to 0.005㎛. The transparent film to which the primer is applied is naturally dried and used in step b) of the manufacturing method.

The thickness of the light diffusing silicon introduced in the step of laminating the transparent film on the upper and lower layers of the light diffusing silicon of step b) of the manufacturing method is preferably used to a thickness of 1 to 5mm. If the thickness of the light diffusing silicon is less than 1 mm, the thickness of the light diffusing silicon layer is too thin to obtain sufficient light diffusing property. If the thickness of the light diffusing silicon is more than 5 mm, the weight of the entire light diffusing sheet is increased so that the actual commercial use value of the lampshade decreases. It is preferable to use a thickness of 1 to 5mm.

In the manufacturing method, c) heating or heating and pressurizing of step c) is performed by heating at a temperature of 100 to 200 ° C. for 2 to 15 minutes using a calender, and heating and pressing using a press. In the case of 100 to 200 ℃, the temperature and pressure of 1 to 4 tons / m ² by heating and pressing for 2 to 15 minutes to prepare a light diffusion sheet. If the heating temperature is 100 ° C. or less, the crosslinking of the primer and the curing of the light diffusive silicone do not occur sufficiently. If the temperature is 200 ° C. or higher, the curing of the light diffusing silicone is promoted so much that the hardness increases, so that the physical properties of the silicone lamp shade are poor. In addition, when the pressure is 1Ton / m ² or less, sufficient adhesion and curing are slightly inferior in production by heating and pressurizing methods, and when the pressure is 4Ton / m ² or more, the stress in the light diffusion sheet is too high.

An example of an apparatus for forming the process of step b) and step c) of the manufacturing method is shown in FIG. 4. Between the two rolls 5a and 5b, the transparent films 3a and 3b face each other on which the primer-coated surfaces face each other and the light diffusing silicon 2 is fed in the opposite direction to the axis from which the material is supplied. Then, the transparent films 3a and 3b are laminated on the upper and lower layers of the light diffusing silicon 2, and then passed through a calender or a heating and pressing press to produce a light diffusing sheet.

The light diffusion sheet manufactured in step c) may increase the scattering effect of light by sanding one side. The sanding treatment (Sanding blasting) is a sanding treatment using an abrasive selected from the group consisting of alumina oxide, alumina, silica, zirconia, ceria, titania, geumgangsa and germania or a mixture thereof, the sanding treatment method is conventional sanding Any method that can be treated with air may be used, but the present invention sands one side of the light diffusion sheet by an air suction spray method.

The sanded light diffusion sheet is used as a silicon lampshade through a molding process such as cutting, formulation, surface pattern treatment according to the purpose of the product.

The silicon lampshade manufactured by the present invention has a small impact when the fall occurs, the damage of the human life is small, and when the combustion occurs, the flame spreading rate is low, toxic substances are not generated and the sanding method is added to the light scattering effect There is an effect to improve more.

The silicone lampshade manufactured by the manufacturing method according to the present invention is a fluorescent lamp lamp shade, LED sign lamp shade, indoor interior lamp shade, stand-type lamp shade lamps, replacing the existing lamp shades currently used in the industry more improved drop stability, light diffusion and resistance It can be used as a lampshade having combustibility.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the following Examples do not limit the spirit of the present invention.

EXAMPLE

The calender used in the present invention used the product of Hanssem Model No. HS-1000, and the press was the product of the model number KM-0043 of Wooil Ind., Which used a product of 0.65m in width and 0.65m in length. The mixer used for mixing with light diffusing agent uses Union Model No. U-200.

Example 1 Preparation of Silicon Lampshade 1

In a 200L mixer, 100 kg of LSI-200 / 40 (product of HRS Co., Ltd.), which is made of dimethyl siloxane having dimethyl vinyl terminal group, and 10 kg of S-5 (KOLON), a light diffusing agent, are mixed. The light-diffusing silicone was prepared, KBM 403 (Shinnets Co., Ltd.) as a primer on a 0.3mm PET film was coated with a primer having a thickness of 0.05 μm using a coating roller, and then dried at room temperature to prepare a pretreated PET film. Using pre-treated PET film, roll the pre-treated PET film to face the inside and insert light-diffusing silicon produced between the upper and lower PET films so that the thickness of light-diffusing silicon is 1mm. The PET film was laminated as a layer. Then, a light diffusion sheet was prepared by heating at 100 ° C. for 15 minutes using a calender. The prepared light diffusing sheet was sanded on one side of the light diffusing sheet by an air inhalation spraying method using a geumgangsa yarn of 80MESH, and then a silicon lampshade 1 was prepared by cutting it to 60 cm width and 60 cm length.

Example 2 Preparation of Silicon Lampshade 2

Light diffusion silicone is mixed by mixing 100 kg of LSI-100 / 40 (product of HRS Co., Ltd., a silicon specialty company) with 20 ml of Tospearl 105 (Toshiba), a light diffusing agent, in a 200 L mixer with dimethyl siloxane having a dimethyl vinyl end group. KBM 503 (Shinnets Co., Ltd.) as a primer was applied to a 0.5mm PET film, and the primer was applied to a thickness of 0.05 μm using a coating roller, followed by air drying at room temperature to prepare a pretreated PET film. Using pre-treated PET film, roll the pre-treated PET film to face the inside and insert the light diffusing silicon produced between the upper and lower PET films so that the thickness of the light diffusing silicon is 3mm. The PET film was laminated as a layer. Then, a light diffusion sheet was prepared by heating at 200 ° C. for 2 minutes using a calender. The prepared light diffusing sheet was sanded on one side of the light diffusing sheet by an air suction spraying method using a geumgang yarn of 80MESH, and then a silicon lampshade 2 was manufactured by cutting it to a width of 60cm and a length of 60cm.

[ Example  3] Manufacture of Silicone Lampshade 3

Light diffusion silicone is prepared by mixing 100 kg of HR-1140 (product of HRS, a silicon specialty company) containing 30 g of polydimethylsiloxane as a main component and 30 kg of Tospearl 130 (Toshiba), a light diffusing agent, in a 200 L mixer. KBM 1003 (Shinnets Co., Ltd.) as a primer on the PET film was applied to a thickness of 0.05㎛ and then dried at room temperature to prepare a pre-treated PET film. Using pre-treated PET film, roll the pre-treated PET film to face inward and inject the light diffusing silicon produced between the upper and lower PET films so that the thickness of the light diffusing silicon is 5mm. The PET film was laminated as a layer. Thereafter, a light diffusion sheet was manufactured by heating and pressing at 100 ° C. and 1.5 Ton / m ² for 15 minutes using a press. The prepared light diffusing sheet was sanded on one side of the light diffusing sheet by an air inhalation spraying method using an 80MESH Geumgangsa yarn, and then cut to 60cm in width and 60cm in length to prepare a silicon lampshade 3.

[ Example  4] Manufacture of Silicone Lampshade 4

Light diffusion silicone is prepared by mixing 100 kg of Base 400 (product of HRS Co., Ltd.), which contains polydimethylsiloxane as a main component, and 50 kg of Tospearl 2000B (Toshiba), a light diffusing agent, in a 200 L mixer. A non-woven fabric coated with DY 39-067 (Dow Corning) as a primer was applied to the film at a thickness of 0.05 μm, and then dried at room temperature to prepare a pretreated PET film. Using pre-treated PET film, roll the pre-treated PET film to face inward and inject the light diffusing silicon produced between the upper and lower PET films so that the thickness of the light diffusing silicon is 5mm. The PET film was laminated as a layer. Thereafter, a light diffusion sheet was manufactured by heating and pressing at 200 ° C. and 4Ton / m ² for 5 minutes using a press. The prepared light diffusion sheet was sanded on one side of the light diffusion sheet by an air inhalation spraying method using a geumgangsa yarn of 80MESH, and then a silicon lampshade 4 was manufactured by cutting it to 60cm in width and 60cm in length.

1 shows an example of the use of a silicone lampshade.

2 is a schematic representation of a silicone lampshade.

3 is a schematic diagram showing a method of forming a light diffusion sheet by heating and pressing.

4 is a schematic view showing a lamination method and a heating method of the light diffusion sheet.

1. silicone lampshade 2. light diffusive silicone

3. Transparent film 4. Press plate

5. Pressurized Roller 6. Burner

Claims (12)

a) applying a primer to one side of the transparent film and drying to prepare a pre-treated transparent film; b) Laminating the transparent film on the upper and lower layers of the light diffusing silicon by putting two sheets of the pre-treated transparent film of step a) with the primer-coated side facing inward and then inserting the light diffusing silicon between the two transparent films. Making; c) preparing a light diffusion sheet by adhering the light diffusion layer and the transparent film by curing or curing the silicon and crosslinking the primer by heating or pressing the laminate of step b); d) sanding one side of the light diffusion sheet of step c); And e) forming a lampshade by molding the sanding surface of the light diffusion sheet to be used as the light diffusion extraction surface; Method of manufacturing a silicon lampshade comprising a. The method of claim 1, The light diffusing silicon of step b) is a method of manufacturing a silicon lamp shade, characterized in that a mixture of a light diffusing agent and silicon. The method of claim 2, The light diffusing agent is an organic light diffusing agent or a silica, alumina, which is a homopolymer of silicone resin, acrylic resin, urethane resin, polyethylene resin, nylon resin, polystyrene resin, polycarbonate resin and polymethacrylate resin or a copolymer of these monomers, A method for producing a silicon lampshade, characterized in that it is selected from glass, calcium carbonate, talc, mica, barium sulfate, zinc oxide, cesium oxide, titanium dioxide, and an inorganic light diffusing agent which is iron oxide or mixtures thereof. The method of claim 3, wherein The light diffusing agent is a method for manufacturing a silicon lamp shade, characterized in that the organic light diffusing agent. The method of claim 2, The light diffusing silicon of step b) is a method for producing a silicon lamp shade, characterized in that using a light diffusing agent 1 to 50 parts by weight based on 100 parts by weight of silicon. The method of claim 5, The silicone is selected from a mixture comprising polydimethylsiloxane, polydimethylsiloxane oil, silicon dioxide, dimethylsiloxane having a dimethylvinyl end group, trimethylated silica and methylvinylsiloxane having a dimethylvinyl end group in a composition independent of each other. Method for producing a silicone lampshade, characterized in that. The method of claim 1, The transparent film of step a) is the manufacturing method of the silicon lamp shade, characterized in that the thickness of 0.1 to 0.5mm. The method of claim 1, The thickness of the light diffusing silicon introduced in step b) is 1 to 5mm, characterized in that the manufacturing method of the silicon lampshade. The method of claim 1, The heating or heating and pressurization of step c) is 100 to 200 ℃ or 100 to 200 ℃ and 1 to 4 Ton / m ² method for producing a silicone lamp shade. The method of claim 1, The sanding treatment of the step e) is a method for producing a silicon lamp shade, characterized in that the sanding treatment using an abrasive selected from the group consisting of alumina oxide, alumina, silica, zirconia, ceria, titania, gold steel and germania or mixtures thereof. . The method of claim 10, The abrasive is a manufacturing method of a silicon lampshade, characterized in that the diamond steel. Silicone lampshade, characterized in that produced by the method of any one of claims 1 to 11.

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