JP5290811B2 - Red molded glasses and goggle resin moldings - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a resin molding for glasses and goggles, which enhances red and orange and can be used for glasses, goggles or the like as a resin lens. <P>SOLUTION: The resin molding is obtained by molding a resin composition containing 100 pts.mass of transparent resin and 0.002 to 0.015 pts.mass of anthraquinone-based dye and has a visible light transmittance of 20 to 50%, a transmittance of 10 to 45% at 540 to 560 nm, a transmittance of 70 to 90% at 650 nm. Furthermore, the resin molding has a transmittance of &ge;60% at 620 nm and enhances red and orange. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to red-enhanced glasses and a resin molded body for goggles. Specifically, glasses and goggle resin moldings that can be used for driving glasses, goggles, sunglasses, etc., for driving vehicles, outdoor sports, or the visually impaired, with the characteristic that red and orange colors appear to be emphasized, and using the same The eyeglasses and the goggle resin lens.

Red or orange colors are used in outdoor sports such as fishing to observe floating movements using red and orange colors on the water surface where dazzling sunlight is diffusely reflected, or when driving a vehicle to identify red signal lights and brake lights. It is required to look better. In addition, it is also required that red color can be seen better even in correction glasses for color-impaired people. Furthermore, glasses, goggles, and the like are required to use resin lenses that are hard to break from the viewpoint of safety and light weight, particularly in sports applications.
Technology for using rare earth elements such as neodymium oxide and praseodymium oxide in inorganic glass as glasses for sports or driving that emphasize red is disclosed (for example, see Patent Document 1). Use is limited in terms of safety, lightness, and workability.

There is no spectacle lens that is made of resin and emphasizes red and orange colors, and it is difficult to obtain visibility by simply transmitting a red or orange wavelength using a dye, and it is difficult to obtain visibility. Further, depending on the selected dye, there are problems such as decomposition during molding.
On the other hand, anthraquinone dyes are generally used as bluing agents and colorants, and in lenses for spectacles, the yellowness of lenses based on polycarbonate resin is eliminated by using about 0.1 to 2 ppm by mass. (For example, refer to Patent Document 2).
In addition, it is known to dye spectacle lenses with dyes to give design, but it is known to use a specific amount of a specific dye as a spectacle lens that looks red or orange highlighted. Absent.

JP 2000-75128 A WO2005 / 069061 pamphlet

  An object of the present invention is to provide a resin molded product for glasses and goggles that looks red and orange emphasized and can be used as a resin lens in glasses and goggles.

  As a result of diligent study, the inventors of the present invention have a resin composition containing a transparent resin and an anthraquinone dye so that the transmittance at a specific wavelength exhibits a specific value. The inventors have found that the above object can be achieved and completed the present invention.

That is, the present invention provides the following glasses and goggle resin moldings, and glasses and goggles resin lenses using the same.
1. A resin molded product obtained by molding a resin composition containing 100 parts by mass of a transparent resin and 0.002 to 0.015 parts by mass of an anthraquinone dye, and has a visible light transmittance of 20 to 50%, 540 to A resin molded article for glasses and goggles with an emphasis on red, wherein the transmittance at 560 nm is 10 to 45% and the transmittance at 650 nm is 70 to 90%.
2. Furthermore, the resin molding for glasses and goggles according to 1 above, wherein the transmittance at 620 nm is 60% or more, and red and orange are emphasized.
3. Furthermore, the resin molding for glasses and goggles according to 2 above, wherein the transmittance at 600 nm is 50% or more.

4). Any one of the above 1-3, wherein the anthraquinone dye has an absorption maximum at 530 to 610 nm and the transmittance of the resin molded product is 80% or more in a long wavelength region of 700 nm or more. Glasses and goggle resin moldings.
5. The resin molded product for glasses and goggles according to any one of the above 1 to 4, wherein the transparent resin is an aromatic polycarbonate resin.
6). A resin lens for spectacles and goggles, comprising the resin molded product according to any one of 1 to 5 and a polarizing film.

  By using the resin molded product of the present invention, red and orange colors are emphasized, and since the lens is made of resin, safe and lightweight glasses and goggles can be provided.

In Example 2, 4, it is the figure which showed the transmittance | permeability (%) vs. wavelength (nm). FIG. 6 is a graph showing transmittance (%) versus wavelength (nm) in Example 5. It is the figure which showed the transmittance | permeability (%) vs. wavelength (nm) in the comparative examples 3, 5, and 6. FIG.

[Resin composition]
The resin molded product for glasses and goggles of the present invention is obtained by molding a resin composition containing a transparent resin and an anthraquinone dye. The transparent resin, the anthraquinone dye, and other additives that can be contained as required will be described.
(Transparent resin)
There is no restriction | limiting in particular as transparent resin used by this invention, For example, polycarbonate resin, polycarbonate-type copolymer resin, polymethylmethacrylate resin, polystyrene resin, polyarylate resin, polystyrene resin, methylmethacrylate-styrene copolymer Resin (MS resin), non-crystalline polyester (PET-G), non-crystalline nylon, etc. may be mentioned, and may be appropriately selected according to the use environment and required characteristics. Of these, an aromatic polycarbonate resin is preferable.
As a commercial item of aromatic polycarbonate resin, the brand name Taflon FN1700A, FN1900A, FN2200A, FN2500A etc. by Idemitsu Kosan Co., Ltd. are mentioned, for example.
Moreover, it is preferable that the viscosity average molecular weight of aromatic polycarbonate resin is about 15,000-27,000.

(Anthraquinone dye)
The anthraquinone dye used in the present invention plays a role of absorbing and shielding light having a wavelength other than red and orange.
That is, the anthraquinone dye as an essential component in the present invention has an absorption maximum at 530 to 610 nm in order to emphasize light of a red wavelength (about 610 to 780 nm) and an orange wavelength (about 590 to 610 nm), And when it is set as the resin molding formed by shape | molding the resin composition which mix | blended 0.002-0.015 mass part of this anthraquinone type dye with respect to 100 mass parts of transparent resin, 700 nm or more long wavelength region Is an anthraquinone dye having an effect of hardly absorbing light (hereinafter, simply referred to as an anthraquinone dye).
Anthraquinone-based dyes are classified into both disperse dyes and oil-soluble dyes, and resin compositions containing them are generally recognized to be stable without being decomposed during molding.

Commercially available products of the anthraquinone dyes as described above include, for example, trade names such as dialresin violet D (absorption maximum: 556 nm) and dialresin red H5B (absorption maximum: 541 nm) manufactured by Mitsubishi Chemical Corporation, and LANXESS Trade name Macrolex Red Violet R (absorption maximum: 540 nm) and the like. These dyes may be used alone or in combination of two or more.
In addition, the anthraquinone dye and other dyes can be used in combination as long as the object of the present invention is not impaired.
Other dyes that can be used in combination include, for example, trade names Diresin Blue J and Diare Resin Yellow H2B manufactured by Mitsubishi Chemical Corporation, and trade names Macrolex Violet B and Macrolex Violet 3R manufactured by LANXESS. It is done. These other dyes may be used alone or in combination of two or more.

When the absorption maximum is 530 to 610 nm and a resin molded body is used, the blending amount of the anthraquinone dye that acts so that the transmittance of the resin molded body is 80% or more in a long wavelength region of 700 nm or more, It is 0.002-0.015 mass part with respect to 100 mass parts of transparent resin. The blending amount of the anthraquinone dye controls the transmittance at each wavelength of the molded product to be described later, and is appropriately adjusted according to the required red and orange strength, the thickness of the molded product, etc. If the amount is less than 0.002 parts by mass, the transmittance of wavelengths other than red and orange cannot be effectively suppressed, and red and orange are not emphasized. Further, if the blending amount exceeds 0.015 parts by mass, the visible light transmittance is lowered and the visibility is inferior, which is not preferable.
For example, when the thickness of the molded body is 2 mm, the amount of the anthraquinone dye is 0.002 to 0.01 parts by mass with respect to 100 parts by mass of the transparent resin in order to emphasize red and orange colors. It is preferably 0.002 to 0.007 parts by mass.

(Additive)
In the resin composition of the present invention, in addition to the transparent resin and the anthraquinone dye, various additives that can be generally added to a polycarbonate resin composition such as an antioxidant, an ultraviolet absorber, a release agent, and a weathering agent. Additives can be included as appropriate.
Examples of the antioxidant include phenolic antioxidants, phosphorus antioxidants, sulfur antioxidants, vitamin antioxidants, lactone antioxidants, amine antioxidants, and the like. These may be used individually by 1 type and may be used in combination of 2 or more type.
Examples of the UV absorber include benzotriazole UV absorbers, salicylate UV absorbers, benzophenone UV absorbers, and triazine UV absorbers. These may be used individually by 1 type and may be used in combination of 2 or more type.
Examples of the mold release agent include stearic acid monoglyceride, pentaerythritol tetrastearate, pentaerythritol tetrapalmitate, and the like. These may be used individually by 1 type and may be used in combination of 2 or more type.

[Molded body]
(Transmittance)
The resin molded body of the present invention is used for glasses, goggles and the like that can be seen with red or red and orange being emphasized. The human identifies the color based on the wavelength of the light that enters the eye, with the brain determining a unique color for each wavelength. Therefore, in the visible light wavelength region (about 380 to 780 nm), red and orange colors are suppressed by suppressing the transmission of light having wavelengths other than the red wavelength (about 610 to 780 nm) and the orange wavelength (about 590 to 610 nm). Can be emphasized.
In the present invention, when red is emphasized, the visible light transmittance is 20 to 50%, and (b) the transmittance at 540 to 560 nm is 10 to 45%, preferably, depending on the thickness of the molded body. Is 20 to 45%, more preferably 25 to 40%, and (c) the amount of the anthraquinone dye may be adjusted so that the transmittance at 650 nm is 70 to 90%, preferably 80 to 90%. .

When emphasizing red and orange, in addition to the above (a) to (c), (d) the transmittance at 620 nm is 60% or more, preferably 70% or more, depending on the thickness of the molded body. What is necessary is just to adjust the compounding quantity of the said anthraquinone type dye so that it may become 80% or more preferably.
In addition to the above (a) to (d), it is preferable that (e) the transmittance at 600 nm is 50% or more because red and orange colors are further emphasized.
In both cases of emphasizing red and emphasizing red and orange, if the transmittance at 540 to 560 nm is greater than 45%, red and orange are not emphasized.
Further, the region of 500 nm or less is not particularly limited, but it is preferable that the transmittance is 50% or more from the viewpoint of color vividness. For example, this region is used to satisfy the Sunglasses American Standard (ANSI Z80.3). The transmittance can be adjusted.

(Molding method)
The resin molded body of the present invention is prepared from a resin composition containing a transparent resin and an anthraquinone-based dye, and other dyes and various additives that are added as necessary, using a known molding method such as a hollow molding method or injection molding. By applying a method, an extrusion molding method, a vacuum molding method, a pressure forming method, a hot bending molding method, a compression molding method, a calendar molding method, a rotational molding method, etc., a molded body can be obtained.
(Resin lenses for glasses and goggles)
The resin molded body of the present invention is for glasses and goggles by forming a protective layer such as a hard coat layer, an antireflection layer and an antifogging coat layer on the surface, and further providing a polarizing film or the like by a known method as necessary. It can be a resin lens.
In addition, you may use the dye which can be contained in the said resin composition for any of a coating layer and a film layer in the range which does not impair the objective of this invention.

  The present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.

Each component used in the examples and comparative examples is as follows.
(Transparent resin)
Aromatic polycarbonate resin: Trade name: Toughlon FN1900A, manufactured by Idemitsu Kosan Co., Ltd. [BPA polycarbonate having PTBP as a terminal group, viscosity average molecular weight = 19,200]
(Anthraquinone dye)
・ Product name: Dialresin Violet D, manufactured by Mitsubishi Chemical Corporation (absorption maximum: 556 nm)
・ Product name: Dialresin Red H5B, manufactured by Mitsubishi Chemical Corporation (absorption maximum: 541 nm)
・ Product name Macrolex Red Violet R, manufactured by LANXESS Corporation (absorption maximum: 540 nm)

(Other dyes)
・ Product name: Dialresin Blue J, manufactured by Mitsubishi Chemical Corporation (absorption maximum: 588 nm)
・ Product name Diresin Yellow H2G, manufactured by Mitsubishi Chemical Corporation (absorption maximum: 465 nm)
・ Product name: Macrolex Violet 3R, manufactured by LANXESS (absorption maximum: 558 nm)
・ Product name: Macrolex Violet B, manufactured by LANXESS (absorption maximum: 587 nm)
・ Product name: Diaresin Blue G, manufactured by Mitsubishi Chemical Corporation (absorption maximum: 587 nm)
(Additive)
Weathering agent: Trade name: Tinuvin 326, manufactured by Ciba Geigy Japan, Ltd. Antioxidant: Trade name: Irgafos 168, manufactured by Ciba Specialty Chemicals

[Examples 1-5 and Comparative Examples 1-6]
The above components are blended in the proportions shown in Table 1, supplied to a 50 mm diameter single screw extruder (model name: NVC-50, manufactured by Tanito Machinery Co., Ltd.), melt kneaded at 280 ° C., and extruded into a strand shape. And then cut into pellets.
The obtained pellets were dried at 120 ° C. for 5 hours, and then injection-molded at an injection molding machine (model: IS100EN, manufactured by Toshiba Machine Co., Ltd.) at a molding temperature of 280 ° C. and a mold temperature of 80 ° C., and the thickness was 2 mm. The test piece was obtained.
The obtained test piece was used for evaluation by the following test, and the results are shown in Table 1.

(Visible light transmittance)
Using DIGITAL HAZE COMPUTER (HGM-2DP, manufactured by Suga Test Instruments Co., Ltd.), the transmittance in the visible light region of 350 to 800 nm was measured according to JIS K7361-1.
(Spectral light transmittance)
Using a spectrophotometer (U-4100, manufactured by Hitachi, Ltd.), each at 440 nm, 540 to 560 nm, 600 nm (wavelength indicating orange), 620 nm (wavelength indicating red and orange), and 650 nm (wavelength indicating red) The transmittance of the wavelength was measured according to JIS K7105.
(Color tone)
When visually observing the red and orange colors, compared to the case without using a test piece, “excellent” indicates that the color appears to be highly emphasized, “good” indicates that the color appears emphasized, and no change is observed. “No change”.

From Table 1, in Examples, red and orange colors were emphasized, whereas Comparative Examples 1 to 4 in which the blending amount of the anthraquinone dye was outside the range defined in the present invention, and only other dyes were used. In Comparative Examples 4 to 6, there were no changes in red and orange color tones compared to the case where no test piece was used.
Moreover, from Examples 2 and 4 shown in FIG. 1, it can be seen that the transmittance at each wavelength varies depending on the blending amount of the anthraquinone dye.
From Comparative Example 3 shown in FIG. 3, it can be seen that if the amount of the anthraquinone dye is too small, light absorption is not sufficient, and light of red and orange wavelengths is not emphasized. From Comparative Examples 5 and 6, It can be seen that when only another dye is blended in an amount within the specified range instead of the anthraquinone dye, the desired transmittance cannot be obtained at each wavelength.

  By using the resin molded body of the present invention, it is possible to provide a resin lens in which red and orange colors appear to be emphasized. Therefore, the resin molded body of the present invention is glasses for driving, outdoor sports, or the visually impaired, It can be suitably used for goggles, sunglasses and the like.

Claims (7)

A resin molded product obtained by molding a resin composition containing 100 parts by mass of a transparent resin and 0.002 to 0.015 parts by mass of an anthraquinone dye, and has a visible light transmittance of 20 to 50%, 540 to A resin molded article for glasses and goggles with an emphasis on red, characterized in that the transmittance at 560 nm is 10 to 45%, the transmittance at 650 nm is 70 to 90% , and the transmittance at 500 nm is 50% or more .   Furthermore, the resin molding for glasses and goggles according to claim 1, wherein the transmittance at 620 nm is 60% or more, and red and orange are emphasized.   Furthermore, the resin molded object for spectacles and goggles of Claim 2 whose transmittance | permeability in 600 nm is 50% or more.   The resin molding for glasses and goggles according to any one of claims 1 to 3, wherein the anthraquinone dye has an absorption maximum at 530 to 610 nm.   The anthraquinone dye has an absorption maximum at 530 to 610 nm, and the transmittance of the resin molded product is 80% or more in a long wavelength region of 700 nm or more. Glasses and goggles resin molding as described.   The resin molding for glasses and goggles according to any one of claims 1 to 5, wherein the transparent resin is an aromatic polycarbonate resin.   The resin lens for spectacles and goggles which uses the resin molding and polarizing film in any one of Claims 1-6.

Images