CN114763441A - Stray light eliminating ink and application thereof - Google Patents
Stray light eliminating ink and application thereof Download PDFInfo
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- CN114763441A CN114763441A CN202110585189.5A CN202110585189A CN114763441A CN 114763441 A CN114763441 A CN 114763441A CN 202110585189 A CN202110585189 A CN 202110585189A CN 114763441 A CN114763441 A CN 114763441A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
Abstract
The invention relates to the field of printing ink, in particular to stray light eliminating printing ink and application thereof, wherein the stray light eliminating printing ink comprises a component A and a component B, wherein the component A comprises 30-60 parts by weight of epoxy resin, 5-15 parts by weight of modified epoxy resin, 1-5 parts by weight of dispersant, 10-30 parts by weight of inorganic powder and 15-35 parts by weight of solvent; the component B comprises 10-20 parts by weight of silane coupling agent and 65-85 parts by weight of epoxy curing agent. The stray light eliminating ink has the advantages of nanoscale particle size, soft luster, uniform ink layer and excellent stray light eliminating effect; the environment protection accords with ROHS, GB38507-2020 standard; the operation of workers is friendly; has excellent chemical resistance and can completely replace the Japanese excellent GT-7 product.
Description
Technical Field
The invention relates to the field of printing ink, in particular to stray light eliminating printing ink and application thereof.
Background
The optical element has the light source that is irrelevant with the formation of image to enter into optical element at the in-process of using, forms stray light, influences the formation of image quality, for eliminating stray light's influence, can give optical element surface coating one deck black paint at present, reaches the purpose of eliminating stray light such as reflection, scattering, simultaneously in order to improve optical element's performance, black paint again requires to have acid and alkali-resistance, boiling with water, ultrasonic cleaning, performances such as high temperature and high humidity resistance.
The prior black paint for optical elements is widely used in the market as a Japanese best-developed GT-7 product, but the GT-7 product has the defects of toxic and harmful substances, poor high-temperature and high-humidity resistance and the like, and the products which are comparable with the GT-7 product in China are rare. The invention fills the blank of the field in China, and the product performance, environmental protection, safety and the like are superior to the Japanese canon chemical products.
Disclosure of Invention
Aiming at some problems in the prior art, the invention provides stray light eliminating ink in a first aspect, which comprises a component A and a component B, wherein the component A comprises 30-60 parts by weight of epoxy resin, 5-15 parts by weight of modified epoxy resin, 1-5 parts by weight of dispersant, 10-30 parts by weight of inorganic powder and 15-35 parts by weight of solvent; the component B comprises 10-20 parts by weight of silane coupling agent and 65-85 parts by weight of epoxy curing agent.
As a preferable technical scheme of the invention, the density of the dispersant at 25 ℃ is 0.8-1.2g/m3。
In a preferred embodiment of the present invention, the modified epoxy resin is a phenol-modified epoxy resin, preferably a phenol-novolac modified epoxy resin.
In a preferred embodiment of the present invention, the epoxy value of the phenolic-modified epoxy resin is 5 to 5 Eq/kg.
As a preferable technical scheme of the invention, the viscosity of the phenolic modified epoxy resin at 25 ℃ is 1000-3000 mPas.
As a preferable technical solution of the present invention, the inorganic powder is selected from one or more of carbon black, talc, fumed silica, titanium dioxide, and graphene.
In a preferred embodiment of the present invention, the fumed silica has a particle size of 9 to 10 μm.
In a preferred embodiment of the present invention, the weight ratio of the carbon black, the talc powder and the fumed silica is (3-7.5): (2.5-5): 1.
as a preferred technical solution of the present invention, the solvent includes an alcohol ether solvent and an acetate ester solvent.
The invention also provides a method for preparing the anti-stray light ink.
Compared with the prior art, the invention has the following beneficial effects:
(1) the application adopts the linear phenolic aldehyde modified epoxy resin, the epoxy value is 5-5Eq/kg, and when the viscosity at 25 ℃ is 1000-3000mPas, the application property is improved, the ink layer is uniformly distributed, and the ultrasonic alkali washing resistance is enhanced;
(2) the Lubomoisten 32500 dispersing agent can effectively improve the blackness of the stray light eliminating printing ink, improve the dispersibility, have excellent flocculation resistance and reduce fog shadows caused by uneven dispersion;
(3) the stray light eliminating ink has the advantages of nanoscale particle size, soft luster, uniform ink layer and excellent stray light eliminating effect; the environment protection accords with ROHS, GB38507-2020 standard; the operation of workers is friendly; has excellent chemical resistance and can completely replace the Japanese excellent GT-7 product.
Detailed Description
The present invention will be described below by way of specific embodiments, but is not limited to the specific examples given below.
The invention provides stray light eliminating printing ink which comprises a component A and a component B, wherein the component A comprises, by weight, 30-60 parts of epoxy resin, 5-15 parts of modified epoxy resin, 1-5 parts of a dispersing agent, 10-30 parts of inorganic powder and 15-35 parts of a solvent; the component B comprises 10-20 parts by weight of silane coupling agent and 65-85 parts by weight of epoxy curing agent.
In one embodiment, the a component further comprises 0.5 to 1.5 parts by weight of a defoamer.
In a preferred embodiment, the component A comprises 42 parts of epoxy resin, 10 parts of modified epoxy resin, 2 parts of dispersing agent, 20 parts of inorganic powder, 26 parts of solvent and 1 part of defoaming agent in parts by weight.
In a preferred embodiment, the B component comprises 15 parts of silane coupling agent and 75 parts of epoxy curing agent by weight.
Component A
The epoxy resin of the present invention is not particularly limited and may be conventionally selected by those skilled in the art.
In one embodiment, the epoxy resin is a bisphenol a type epoxy resin.
Preferably, the bisphenol a type epoxy resin types include NEPS904 and NEPS 128.
More preferably, the weight ratio of the bisphenol A type epoxy resin with the model number of NEPS904 to the bisphenol A type epoxy resin with the model number of NEPS128 is (3-5): 1, more preferably 3.2: 1.
preferably, the modified epoxy resin is phenolic aldehyde modified epoxy resin; more preferably, the phenolic-modified epoxy resin is a phenolic-linear modified epoxy resin.
Preferably, the epoxy value of the phenolic aldehyde modified epoxy resin is 5-5 Eq/kg; more preferably, the epoxy value of the phenolic modified epoxy resin is 4.4-4.6 Eq/kg.
Further preferably, the viscosity of the phenolic modified epoxy resin at 25 ℃ is 1000-3000 mPas; more preferably, the phenolic-modified epoxy resin has a viscosity of 1200-2000mPas at 25 ℃.
The linear phenolic aldehyde modified epoxy resin with the viscosity of 1200-2000mPas and the epoxy value of 4.4-4.6Eq/kg at 25 ℃ is purchased from Chongqing Kai chemical Co., Ltd, and the mark is EPN 1180.
When bisphenol A epoxy resin is used, the applicant finds that the workability is poor, the ink layer is uneven and the ultrasonic alkali cleaning resistance is poor when the stray light eliminating ink is constructed on an optical component, and the applicant surprisingly finds that when phenolic aldehyde modified epoxy resin with specific content, particularly linear phenolic modified epoxy resin, is added, the epoxy value is 5-5Eq/kg, the viscosity at 25 ℃ is 1000-3000mPas, the workability is improved, the ink layer is uniformly distributed and the ultrasonic alkali cleaning resistance is enhanced, the applicant considers that the possible reason is that the cohesion among epoxy resin molecules is reduced in the specific linear phenolic modified epoxy resin in the components, the fluidity of the raw material components among the optical components and the acting force between the raw material components and the optical component are improved, the ink layer is uniformly distributed, and the specific linear phenolic epoxy resin is added, the acting force between epoxy resin molecules is improved, the molecular structures are compact, and the ultrasonic alkali washing resistance is improved.
In one embodiment, the dispersant is at 2The density at 5 ℃ is 0.8-1.2g/m3。
Preferably, the dispersant has a density of 0.98g/m at 25 ℃3。
Preferably, the dispersant is luobu Mi 32500, and the density at 25 ℃ is 0.98g/m3。
The Luborun 32500 dispersing agent can effectively improve the blackness of the stray light eliminating printing ink, improve the dispersibility, have excellent flocculation resistance, and reduce fog and shadow caused by uneven dispersion, however, the addition of the dispersing agent improves the glossiness of the printing ink, integrally improves the vividness of the printing ink, and brings difficulty to the extinction of the printing ink.
In one embodiment, the inorganic powder is selected from one or more of carbon black, talc, fumed silica, titanium dioxide, and graphene.
Preferably, the inorganic powder comprises carbon black, talcum powder and fumed silica.
Preferably, the weight ratio of the carbon black, the talcum powder and the fumed silica is (3-7.5): (2.5-5): 1; more preferably 3.3: 2.3: 1.
the carbon black is purchased from Kaiyn chemical Co., Ltd, Shanghai under the mark of European Stylon Tehei 4.
The talc powder described in this application is available from Guangdong Naao New Material science and technology, Inc. under the trademark IMERY3 CA.
In one embodiment, the fumed silica has a particle size of 9 to 10 μm.
Preferably, the fumed silica has a particle size of 9.5 μm.
Fumed silica having a particle size of 9.5 μm was purchased from Kjen chemical Co., Ltd, Shanghai under the trade name TS-100.
The applicant finds that the extinction effect is not ideal when the conventional extinction powder is added for extinction, and the applicant unexpectedly finds that the inorganic powder comprises fumed silica with the particle size of 9-10 mu m, so that the extinction effect can be obviously improved, probably because the fumed silica with the particle size can be fully combined with the Borun 32500 in the preparation process, the fumed silica and the Borun 32500 can act together to improve the extinction effect while improving the dispersibility while not influencing the fluidity of the ink, and the applicant unexpectedly finds that the fumed silica with the particle size of less than 9 mu m has higher glossiness of the ink.
In one embodiment, the solvent includes an alcohol ether solvent and an acetate ester solvent.
Preferably, the alcohol ether solvent comprises ethylene glycol butyl ether and propylene glycol methyl ether.
Further preferably, the weight ratio of the ethylene glycol butyl ether to the propylene glycol methyl ether is (0.8-1.2): 1, more preferably 1: 1.
preferably, the acetate solvent is butyl acetate.
The defoaming agent of the present invention is not particularly limited and may be conventionally selected by those skilled in the art.
In one embodiment, the antifoaming agent is purchased from Zhongzhen, precious district, Zhongbang chemical speciality agency, and is available in the trademark BYK-054.
B component
The silane coupling agent of the present invention is not particularly limited and may be conventionally selected by those skilled in the art.
In one embodiment, the silane coupling agent is gamma-glycidoxypropyltrimethoxysilane.
The curing agent of the present invention is not particularly limited and may be conventionally selected by those skilled in the art.
Preferably, the curing agent comprises an epoxy curing agent 1 and an epoxy curing agent 2.
The trade name of the epoxy curing agent 1 is G-328; the epoxy curing agent 2 is available under the trade name of ARADUR 3296-1.
The invention also provides application of the stray light eliminating printing ink in optical components.
The preparation method of the light-eliminating and stray-light-eliminating ink is not particularly limited, and can be selected by a person skilled in the art in a conventional way.
In one embodiment, the method for preparing the anti-stray light ink comprises the following steps:
preparation of component A: mixing carbon black, ethylene glycol monobutyl ether and a dispersing agent, dispersing for 30min at the rotating speed of 800 revolutions per minute, standing for 4-8h, and sanding until the fineness is less than 5 microns; gradually adding bisphenol A type epoxy resin and phenolic aldehyde modified epoxy resin, and dispersing for 30min at the rotating speed of 600 revolutions per minute; then adding butyl acetate and propylene glycol methyl ether, and dispersing for 30min at the rotating speed of 600 rpm; adding fumed silica, talcum powder and defoaming agent, dispersing at 800 rpm for 30min, and making the fineness less than 10 μm; standing for 30 minutes, filtering with a 300-mesh gauze, and packaging according with the performance parameter listed in the patent.
Preparation of the component B: mixing the silane coupling agent, the epoxy curing agent 1 and the epoxy curing agent 2, dispersing for 15min at the rotating speed of 500 revolutions per minute, and filtering and packaging the gauze with 300 meshes according to the patent performance parameter table by the quality test performance.
In one embodiment, the method of using the anti-stray light ink includes: weighing a sufficient amount of the component A according to the obtained component A mixed raw material, so that the weight ratio of the component A to the component B is 8: 1, mixing the component A and the component B to obtain the composition.
In the application, the component A and the component B are separately packaged and are prepared at any time.
Examples
Hereinafter, the present invention will be described in more detail by way of examples, but it should be understood that these examples are merely illustrative and not restrictive. The starting materials used in the examples which follow are all commercially available unless otherwise stated.
Example 1
The embodiment 1 of the invention provides stray light eliminating ink which is prepared from a component A and a component B as raw materials, and comprises the following specific components:
the component A is prepared from the following raw materials in parts by weight:
carbon black (Oseltron. RTM. 4, available from Kjeldahl chemical Co., Ltd.), 7 parts
Ethylene glycol butyl ether, 5 parts
Dispersing agent (Luborun 32500, from Shanghai Lian Ding Kong Co., Ltd.) 1 part
Bisphenol A epoxy resin 1(NEPS904 available from south Kunshan chemical industry), 25 parts
Bisphenol A epoxy resin 2(NEPS128, available from Kunshan south Asia chemical industry), 5 parts
Phenolic aldehyde modified epoxy resin (EPN1180, available from Chongqing Kaiyn chemical Co., Ltd.), 5 parts
Butyl acetate, 5 parts
Propylene glycol methyl ether, 5 parts
Fumed silica (TS-100, available from Kyong chemical Co., Ltd., Shanghai) 2 parts
Talcum powder (IMERY 3CA, available from Guangdong Naao New Material science and technology Co., Ltd.), 5 parts
0.5 part of defoaming agent (BYK-054, purchased from Zhongbang chemical special shop in Baoan region, Shenzhen city) by weight, and the B component is prepared from the following raw materials:
silane coupling agent (Dow Corning 6040, from Guangzhou Jiujin International trade Co., Ltd.), 10 parts
Epoxy hardener 1(G-328, from Shanghai Xiaozui trade) 50 parts
Epoxy hardener 2(ARADUR3296-1, from Shanghai Hensman), 15 parts
The application method of the extinction resin comprises the following steps: and weighing a sufficient amount of the component A according to the obtained component A mixed raw material, so that the weight ratio of the component A to the component B is 8: 1, mixing the component A and the component B to obtain the composition.
The preparation method of the stray light eliminating printing ink comprises the following steps:
preparation of component A: mixing carbon black, ethylene glycol monobutyl ether and a dispersing agent, dispersing for 30min at the rotating speed of 800 revolutions per minute, standing for 7h, and then sanding until the fineness is less than 5 microns; gradually adding bisphenol A type epoxy resin 1, bisphenol A type epoxy resin 2 and phenolic aldehyde modified epoxy resin, and dispersing for 30min at the rotating speed of 600 revolutions per minute; then adding butyl acetate and propylene glycol methyl ether, and dispersing for 30min at the rotating speed of 600 revolutions per minute; adding fumed silica, pulvis Talci and defoamer, dispersing at 800 rpm for 30min, and fineness less than 10 μm; standing for 30 minutes, filtering with a 300-mesh gauze, and packaging after the quality inspection performance meets the items listed in the performance parameter table 1.
Preparation of the component B: mixing the silane coupling agent, the epoxy curing agent 1 and the epoxy curing agent 2, dispersing for 15min at the rotating speed of 500 revolutions per minute, and filtering and packaging with a 300-mesh gauze after the quality inspection performance meets the items listed in the performance parameter table 1.
Example 2
The embodiment 2 of the invention provides stray light eliminating ink which is prepared from a component A and a component B as raw materials, and comprises the following specific components:
the component A is prepared from the following raw materials in parts by weight:
carbon black (Oseltron. RTM. 4, available from Kjeldahl chemical Co., Ltd., Shanghai, 15 parts by weight)
Ethylene glycol butyl ether, 10 parts
Dispersant (Luborun 32500, available from Shanghai Ding practice Co., Ltd.), 3 parts
Bisphenol A epoxy resin (NEPS904 available from Kunshan south Asia chemical industry) 45 parts
Bisphenol A epoxy resin (NEPS128, available from Kunshan south Asia chemical industry) 15 parts
Phenolic aldehyde modified epoxy resin (EPN1180 available from Chongqing Kaiyn chemical Co., Ltd.) 15 parts
Butyl acetate, 15 parts
Propylene glycol methyl ether, 10 parts
Fumed silica (TS-100, from Kyon chemical Co., Ltd., Shanghai) 5 parts
Talcum powder (IMERY 3CA, available from Guangdong Nao New Material science and technology Co., Ltd.), 10 parts
1.5 parts of defoaming agent (BYK-054, purchased from Zhongzhen, Bao' an district, Zhongbang chemical engineering special agency), by weight, the component B is prepared from the following raw materials:
silane coupling agent (Dow Corning 6040, from Guangzhou Jiujin International trade Co., Ltd.), 20 parts
Epoxy hardener (G-328, from Mitsubishi, Shanghai, trade), 60 parts
Epoxy hardener (ARADUR3296-1, available from Shanghai Hensman), 25 parts
The application method of the extinction resin comprises the following steps: and weighing a sufficient amount of the component A according to the obtained component A mixed raw material, so that the weight ratio of the component A to the component B is 8: 1, mixing the component A and the component B to obtain the composition.
The preparation method of the stray light eliminating printing ink comprises the following steps:
preparation of component A: mixing carbon black, ethylene glycol monobutyl ether and a dispersing agent, dispersing for 30min at the rotating speed of 800 revolutions per minute, standing for 7h, and then sanding until the fineness is less than 5 microns; gradually adding bisphenol A type epoxy resin 1, bisphenol A type epoxy resin 2 and phenolic aldehyde modified epoxy resin, and dispersing for 30min at the rotating speed of 600 revolutions per minute; then adding butyl acetate and propylene glycol methyl ether, and dispersing for 30min at the rotating speed of 600 rpm; adding fumed silica, talcum powder and defoaming agent, dispersing at 800 rpm for 30min, and making the fineness less than 10 μm; standing for 30 minutes, filtering with a 300-mesh gauze, and packaging after the quality inspection performance meets the items listed in the performance parameter table 1.
Preparation of the component B: mixing the silane coupling agent, the epoxy curing agent 1 and the epoxy curing agent 2, dispersing for 15min at the rotating speed of 500 revolutions per minute, and filtering and packaging with a 300-mesh gauze after the quality inspection performance meets the items listed in the performance parameter table 1.
Example 3
Embodiment 3 of the present invention provides a stray light eliminating ink, which is prepared from a component a and a component B, and specifically comprises the following raw materials:
the component A is prepared from the following raw materials in parts by weight:
carbon black (Oseltron. RTM. 4, available from Kjeldahl chemical Co., Ltd., Shanghai, 10 parts by weight)
Ethylene glycol butyl ether, 8 parts
Dispersant (Luborun 32500, available from Shanghai Ding practice Co., Ltd.), 2 parts
Bisphenol A epoxy resin (NEPS904 available from Kunshan south Asia chemical industry) 32 parts
Bisphenol A epoxy resin (NEPS128, available from Kunshan south Asia chemical industry) 10 parts
Phenolic aldehyde modified epoxy resin (EPN1180, available from Chongqing Kaiyin chemical Co., Ltd.), 10 parts
Butyl acetate, 10 parts
Propylene glycol methyl ether, 8 parts
Fumed silica (TS-100, from Kyon chemical Co., Ltd., Shanghai) 3 parts
Talcum powder (IMERY 3CA, available from Guangdong Nao New Material science and technology Co., Ltd.), 7 parts
The defoaming agent (BYK-054, purchased from Zhongbang chemical engineering special shop in Shenzhen, Baoan district, 1 part by weight, the B component is prepared from the following raw materials:
silane coupling agent (Dow Corning 6040, from Guangzhou Jiujin International trade Co., Ltd.), 15 parts
Epoxy hardener (G-328, from Shanghai Xiaozui trade) 55 parts
Epoxy hardener (ARADUR3296-1, available from Shanghai Hensman), 20 parts
The application method of the extinction resin comprises the following steps: and weighing a sufficient amount of the component A according to the obtained component A mixed raw material, so that the weight ratio of the component A to the component B is 8: 1, mixing the component A and the component B to obtain the composition.
The preparation method of the stray light eliminating printing ink comprises the following steps:
preparation of component A: mixing carbon black, ethylene glycol monobutyl ether and a dispersing agent, dispersing for 30min at the rotating speed of 800 revolutions per minute, standing for 7h, and then sanding until the fineness is less than 5 microns; gradually adding bisphenol A type epoxy resin 1, bisphenol A type epoxy resin 2 and phenolic aldehyde modified epoxy resin, and dispersing for 30min at the rotating speed of 600 revolutions per minute; then adding butyl acetate and propylene glycol methyl ether, and dispersing for 30min at the rotating speed of 600 rpm; adding fumed silica, talcum powder and defoaming agent, dispersing at 800 rpm for 30min, and making the fineness less than 10 μm; standing for 30 minutes, filtering with a 300-mesh gauze, and packaging after the quality inspection performance meets the items listed in the performance parameter table 1.
Preparation of the component B: mixing the silane coupling agent, the epoxy curing agent 1 and the epoxy curing agent 2, dispersing for 15min at the rotating speed of 500 revolutions per minute, and filtering and packaging with a 300-mesh gauze after the quality inspection performance meets the items listed in the performance parameter table 1.
Example 4
Embodiment 4 of the invention provides stray light eliminating ink, which is prepared from a component A and a component B as raw materials, and specifically comprises the following components:
the component A is prepared from the following raw materials in parts by weight:
carbon black (Oseltron Teh black 4, available from Kjen chemical Co., Ltd., Shanghai, 10 parts by weight)
Ethylene glycol butyl ether, 8 parts
Dispersant (Luborun 32500, available from Shanghai Ding practice Co., Ltd.), 2 parts
Bisphenol A epoxy resin (NEPS904 available from Kunshan south Asia chemical industry) 32 parts
Bisphenol A epoxy resin (NEPS128, available from Kunshan south Asia chemical industry) 20 parts
Butyl acetate, 10 parts
Propylene glycol methyl ether, 8 parts
Fumed silica (TS-100, from Kyon chemical Co., Ltd., Shanghai) 3 parts
Talcum powder (IMERY 3CA, available from Guangdong Naao New Material science and technology Co., Ltd.), 7 parts
The defoaming agent (BYK-054, purchased from Zhongbang chemical engineering special shop in Shenzhen, Baoan district, 1 part by weight, the B component is prepared from the following raw materials:
silane coupling agent (Dow Corning 6040, from Guangzhou Jiujin International trade Co., Ltd.), 15 parts
Epoxy hardener (G-328, from Shanghai Xiaozui trade) 55 parts
Epoxy curing agent (ARADUR3296-1, available from Shanghai Hensman), 20 parts
The application method of the extinction resin comprises the following steps: and weighing a sufficient amount of the component A according to the obtained component A mixed raw material, so that the weight ratio of the component A to the component B is 8: 1, mixing the component A and the component B to obtain the composition.
The preparation method of the stray light eliminating printing ink comprises the following specific steps:
preparation of component A: mixing carbon black, ethylene glycol monobutyl ether and a dispersing agent, dispersing for 30min at the rotating speed of 800 revolutions per minute, standing for 7h, and then sanding until the fineness is less than 5 microns; gradually adding bisphenol A type epoxy resin 1 and bisphenol A type epoxy resin 2, and dispersing at the rotating speed of 600 revolutions per minute for 30 min; then adding butyl acetate and propylene glycol methyl ether, and dispersing for 30min at the rotating speed of 600 rpm; adding fumed silica, talcum powder and defoaming agent, dispersing at 800 rpm for 30min, and making the fineness less than 10 μm; standing for 30 minutes, filtering with a 300-mesh gauze, and packaging after the quality inspection performance meets the items listed in the performance parameter table 1.
Preparation of the component B: mixing the silane coupling agent, the epoxy curing agent 1 and the epoxy curing agent 2, dispersing for 15min at the rotating speed of 500 revolutions per minute, and filtering and packaging with a 300-mesh gauze after the quality inspection performance meets the items listed in the performance parameter table 1.
Example 5
Example 5 of the present invention provides an anti-stray light ink, which is similar to example 3 in the specific implementation, except that the fumed silica has a particle size of 3 μm, which is commercially available from Shanghai province, and the Nippon Tosoh chemical gas silica brand is: e-1101.
Performance evaluation
The stray light eliminating ink obtained in example 3 was prepared by mixing the component A and the component B in a weight ratio of 8: 1 after mixing, the performance tests are shown in table 1. Wherein the tested coating properties refer to those obtained by coating films on optical glass materials.
TABLE 1
Further, the applicant tested that the stray light eliminating inks obtained in examples 1 to 3 were used in such a manner that the ratio of the A component to the B component was 8: 1, and the ink layer was uniform, using the light-eliminating stray light ink obtained in example 4, in a weight ratio of the a component to the B component of 8: 1, the ink layer is not uniform. The stray light eliminating ink obtained in example 5 was prepared by mixing the component A and the component B in a weight ratio of 8: 1, after the glass is mixed on an optical glass material for coating, the glossiness is as follows: 3.0/27.5/50.6.
The foregoing examples are merely illustrative and serve to explain some of the features of the method of the present invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. Where the claims recite a range of values, such ranges are intended to include all sub-ranges subsumed therein, and variations within the ranges are intended to be encompassed by the claims as appended hereto where possible.
Claims (10)
1. The stray light eliminating printing ink is characterized by comprising a component A and a component B, wherein the component A comprises 30-60 parts of epoxy resin, 5-15 parts of modified epoxy resin, 1-5 parts of dispersing agent, 10-30 parts of inorganic powder and 15-35 parts of solvent in parts by weight; the component B comprises 10-20 parts by weight of silane coupling agent and 65-85 parts by weight of epoxy curing agent.
2. A stray light-eliminating ink as claimed in claim 1, wherein said dispersant has a density of 0.8 to 1.2g/m at 25 ℃3。
3. The light-eliminating optical ink as claimed in claim 1, wherein the modified epoxy resin is a phenolic modified epoxy resin, preferably a phenolic novolac modified epoxy resin.
4. A light-eliminating optical ink as claimed in claim 3, wherein the epoxy value of the phenolic-modified epoxy resin is 5-5 Eq/kg.
5. A stray light-eliminating ink as claimed in claim 3, wherein said phenolic-modified epoxy resin has a viscosity of 1000-3000mPas at 25 ℃.
6. A stray light eliminating ink as claimed in any one of claims 1 to 5, wherein said inorganic powder is selected from one or more of carbon black, talc, fumed silica, titanium dioxide, and graphene.
7. A stray light-eliminating ink as claimed in claim 6, wherein said fumed silica has a particle size of 9 to 10 μm.
8. A stray light-eliminating ink as claimed in claim 7, wherein the weight ratio of said carbon black, talc and fumed silica is (3-7.5): (2.5-5): 1.
9. a stray light-eliminating ink as claimed in claim 7 or 8, wherein said solvent includes an alcohol ether solvent and an acetate ester solvent.
10. Use of an anti-stray light ink according to any one of claims 1 to 9 in optical components.
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| CN202110585189.5A CN114763441A (en) | 2021-05-27 | 2021-05-27 | Stray light eliminating ink and application thereof |
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