CN102766350A - Preparation method of yellow pigment derivative for liquid crystal photoresist - Google Patents
Preparation method of yellow pigment derivative for liquid crystal photoresist Download PDFInfo
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- CN102766350A CN102766350A CN2011101131001A CN201110113100A CN102766350A CN 102766350 A CN102766350 A CN 102766350A CN 2011101131001 A CN2011101131001 A CN 2011101131001A CN 201110113100 A CN201110113100 A CN 201110113100A CN 102766350 A CN102766350 A CN 102766350A
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Abstract
The invention provides a preparation method of a high-performance PY 138 yellow pigment for a color filter in a LCD. An acid treatment method is adopted to prepare the high-performance PY 138 yellow pigment, and during the preparation process, a crystal stabilizing agent and a solvent are added. The preparation method comprises the following specific processes: putting a PY 138 yellowing pigment crude product and acid into a reaction vessel, stirring, adding the crystal stabilizing agent, an organic solvent and the like during the acid treatment process, putting an acid soluble mixture obtained into water, uniformly stirring, filtering and washing until the pH value is close to neutral, drying to obtain a massive pigment, or crushing to obtain a powdery pigment, acquiring a derivative of the pigment, adding the derivative in proportion into an untreated PY138 yellow pigment for blending, and uniformly mixing to obtain the high-performance PY 138 yellowing pigment composition. The high-performance PY 138 yellow pigment prepared by the method has high luminance and high contrast ratio. The pigment provided by the invention not only can meet application requirements of traditional industries but also can be used in a color filter of a liquid crystal photoresist.
Description
Technical field
The present invention relates to a kind of pigment constituent and preparation method thereof, be specifically related to the yellow ultramarine derivative preparation method that a kind of liquid crystal photoresistance is used.
Background technology
The liquid crystal photoresistance become the important component part in liquid crystal market, and is in and develops rapidly.The liquid crystal photoresistance relies on color filter to come Show Color, and the color in the colour filter is produced by pigment.Color in the colour filter mainly is three mass-tones of red, green, blue.The PY138 yellow ultramarine will grind in a liquid system and be distributed to certain fineness; Be prepared into millbase; Base-material disperses in specific system then, is prepared into the mill base of similar coating, and this mill base is coated in film forming on the transparent substrate of colour filter through certain method then; When light transmission, demonstrate color.
Because of the synthetic DPP pigment that obtains of general technology; As in the liquid crystal photoresistance mill base, pigment particles is seriously reunited, and in solvent system, very easily makes the whole system phenomenon that occurs sending out thick; Thereby briliancy and contrast gradient have been reduced; Therefore, the PY138 yellow ultramarine has only the requirement that just can reach the used color filter of liquid crystal photoresistance through refining interpolation synergist, can satisfy required briliancy of liquid crystal photoresistance and contrast gradient.
Summary of the invention
The objective of the invention is to the yellow ultramarine derivative preparation method that a kind of liquid crystal photoresistance is used; The PY138 yellow ultramarine of the inventive method preparation adds the back and compares with traditional P Y138 champac pigment at aspects such as briliancy, contrast gradients; Improve a lot; The application of traditional industries not only can be satisfied, and the requirement of the used color filter of liquid crystal photoresistance can be satisfied.
For achieving the above object, the present invention provides the high-performance PY138 yellow pigment that colour filter is used in a kind of liquid-crystal display preparation method, adopts acidic treatment to prepare high-performance PY138 yellow ultramarine; In the preparation process, add crystallization-stable agent and solvent, its detailed process comprises: in reaction kettle; Put into PY138 yellow ultramarine bullion and acid; Stir, in the s.t. process, add crystallization-stable agent and solvent etc.; Mixture is dissolved in the acid that obtains be put in the water, stir; Filter then and wash pH value neutrality; Drying obtains block pigment; Or pulverize and to obtain powdered pigment, obtain the verivate of this pigment, said this verivate is added in the untreated PY138 yellow ultramarine in proportion mix; After mixing, promptly get high-performance PY138 yellow ultramarine constituent.
The acid that said s.t. is used is sulfuric acid, phosphoric acid or chlorsulfonic acid; The concentration 98.5%～108% of said acid, preferred 100%～105%; The usage quantity of said acid is 1～20 times of PY138 yellow pigment weight, preferred 3～7 times.
The said s.t. time is 1～16h, preferred 6～8h, and temperature is 30 ℃～150 ℃, preferred 65 ℃～110 ℃.
Said crystallization-stable agent is selected from the mixture of a kind of or two kinds of any ratios in amine salt or the ammonium salt, and the addition of said crystallization-stable agent is 2%～20%, preferred 5%～10% of a PY138 yellow pigment weight.
Said solvent is an organic solvent, and like DMF, said DMF addition is 2%～20%, preferred 5%～10% of a PY138 yellow pigment weight.
Said acid is dissolved mixture and is put in the water, and the consumption of said water be 1～40 times of the molten mixture weight of acid, and preferred 10 times, said water temp is from 0 ℃～100 ℃, preferred 30 ℃～90 ℃.
Said this pigment derivative is added untreated PY138 yellow ultramarine in proportion to and is mixed, and said ratio is 1%-20%.
Beneficial effect: the high-performance PY138 yellow ultramarine of the inventive method preparation, have high briliancy, high-contrast, not only can satisfy the application of traditional industries, more can be used for the color filter of liquid crystal photoresistance.Major advantage: reduce system viscosity, make the abundant color development of pigment, improve gloss and look power, improve product and disperse, improve the product package stability.
Embodiment
Below in conjunction with specific embodiment the present invention is further specified.
Embodiment:
A. the reaction kettle of one 3 cubic capacity is put into concentration 100% sulfuric acid of 300 kilograms of PY138 yellow pigments and 900 kilograms, insulated and stirred 9 hours, and 75 ℃～100 ℃ of temperature add 15 kilograms of ammonium salts and 15 kilograms of DMF in this process; The acid mixture that obtains is put in 20 tons the water, 40 ℃～80 ℃ of water temps stir; Filter then that to wash pH value neutral, drying obtains block pigment, or pulverizes and obtain powdered pigment, obtains 150 kilograms in the verivate of this pigment;
B. 10 kilograms in verivate and the untreated PY138 yellow pigment with said this pigment mixes for 90 kilograms, promptly gets 100 kilograms of high-performance PY138 yellow pigments after mixing.
High-performance PY138 yellow pigment and untreated PY138 yellow pigment are advanced contrast, to such as table 1
Table 1
Claims (5)
1. the high-performance PY138 yellow ultramarine preparation method that colour filter is used in the liquid-crystal display, its process comprises: in reaction kettle, put into PY138 yellow ultramarine bullion and acid, stir, in the s.t. process, add crystallization-stable agent and organic solvent; Mixture is dissolved in the acid that obtains be put in the water, stir; Filter then and wash pH value neutrality; Drying obtains block pigment; Or pulverize and to obtain powdered pigment, obtain the verivate of this pigment, it is characterized in that: the verivate of said this pigment is added in the untreated PY138 yellow ultramarine in proportion mix; After mixing, promptly get high-performance PY138 yellow ultramarine constituent.
2. the high-performance PY138 yellow ultramarine preparation method who uses according to colour filter in the described a kind of liquid-crystal display of right is characterized in that: the addition of said crystallization-stable agent is 2%～20%, preferred 5%～10% of a PY138 yellow ultramarine weight.
3. the high-performance PY138 yellow ultramarine preparation method who uses according to colour filter in right 1 described a kind of liquid-crystal display is characterized in that: the addition of said organic solvent is 2%～20%, preferred 5%～10% of a PY138 yellow ultramarine weight.
4. the high-performance PY138 yellow ultramarine preparation method who uses according to colour filter in right 1 described a kind of liquid-crystal display; It is characterized in that: said acid is dissolved mixture and is put in the water; The consumption of said water is 1～40 times that mixture weight is dissolved in acid; Preferred 10 times, said water temp is from 0 ℃～100 ℃, preferred 30 ℃～90 ℃.
5. the high-performance PY138 yellow ultramarine preparation method who uses according to colour filter in right 1 described a kind of liquid-crystal display; It is characterized in that: said this pigment derivative is added in proportion in the untreated PY138 yellow ultramarine and is mixed, and said ratio is 1%-20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101131001A CN102766350A (en) | 2011-05-04 | 2011-05-04 | Preparation method of yellow pigment derivative for liquid crystal photoresist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101131001A CN102766350A (en) | 2011-05-04 | 2011-05-04 | Preparation method of yellow pigment derivative for liquid crystal photoresist |
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| CN102766350A true CN102766350A (en) | 2012-11-07 |
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| CN2011101131001A Pending CN102766350A (en) | 2011-05-04 | 2011-05-04 | Preparation method of yellow pigment derivative for liquid crystal photoresist |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105949820A (en) * | 2016-02-26 | 2016-09-21 | 友达光电股份有限公司 | Color filter layer material, pigment for color filter layer and preparation method thereof |
| CN109061931A (en) * | 2018-08-10 | 2018-12-21 | 滨海明昇化工有限公司 | A kind of preparation method of liquid crystal display PY138 derivative |
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| DE1770960A1 (en) * | 1968-07-24 | 1972-01-13 | Basf Ag | Yellow dyes of the phthalimidoquinophthalone series |
| US20030172847A1 (en) * | 2000-06-29 | 2003-09-18 | Jianing He | Quinophthalone-derivatives based crystallization modifiers |
| CN1918244A (en) * | 2003-12-31 | 2007-02-21 | 太阳化学公司 | Preparation of yellow pigment |
| CN101163753A (en) * | 2005-04-25 | 2008-04-16 | 巴斯福股份公司 | Green pigment preparations based on c.i. pigment green 36 |
| CN101457029A (en) * | 2007-12-14 | 2009-06-17 | 上海捷虹颜料化工集团股份有限公司 | Phthalocyanine blue pigment for LCD and preparation method thereof |
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2011
- 2011-05-04 CN CN2011101131001A patent/CN102766350A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1770960A1 (en) * | 1968-07-24 | 1972-01-13 | Basf Ag | Yellow dyes of the phthalimidoquinophthalone series |
| US20030172847A1 (en) * | 2000-06-29 | 2003-09-18 | Jianing He | Quinophthalone-derivatives based crystallization modifiers |
| CN1918244A (en) * | 2003-12-31 | 2007-02-21 | 太阳化学公司 | Preparation of yellow pigment |
| CN101163753A (en) * | 2005-04-25 | 2008-04-16 | 巴斯福股份公司 | Green pigment preparations based on c.i. pigment green 36 |
| CN101457029A (en) * | 2007-12-14 | 2009-06-17 | 上海捷虹颜料化工集团股份有限公司 | Phthalocyanine blue pigment for LCD and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105949820A (en) * | 2016-02-26 | 2016-09-21 | 友达光电股份有限公司 | Color filter layer material, pigment for color filter layer and preparation method thereof |
| CN109061931A (en) * | 2018-08-10 | 2018-12-21 | 滨海明昇化工有限公司 | A kind of preparation method of liquid crystal display PY138 derivative |
| CN109061931B (en) * | 2018-08-10 | 2021-03-09 | 山东盛宏安华化学有限公司 | Preparation method of PY138 derivative for liquid crystal display |
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Application publication date: 20121107 |