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Pearlescent pigment

A technology for luster pigments and pearls, which is applied in inorganic pigment treatment, wet preparation of dyed pigments, fibrous fillers, etc., can solve the problems of disorganized orientation of pearl luster pigments and reduced flop, and improve the secondary water resistance. Adhesion and immersion suppression effect

Active Publication Date: 2009-08-19
NIPPON SHEET GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the orientation of the pearl luster pigment is disordered, thereby reducing the color flop

Method used

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  • Pearlescent pigment
  • Pearlescent pigment
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0157] Example 1 is an example in which a coating of cerium hydroxide or oxide hydrate is formed on glass flakes coated with rutile-type titanium dioxide, and further, a coating of an oxazoline group-containing polymer is formed on the surface thereof.

[0158] Metashine (registered trademark) MC1020RB manufactured by Nippon Sheet Glass Co., Ltd. was used as a pearly luster pigment which is coated with rutile-type titanium dioxide and exhibits an interference color. The average particle diameter of this pearl luster pigment is 20 μm, the average thickness is 1.6 μm, the adhesion amount of rutile-type titanium dioxide is about 26% by mass, and exhibits blue luster interference color.

[0159] First, using cerium(III) nitrate hexahydrate [Ce(NO 3 ) 3 ·6H 2 O] 0.6g, prepare 2% by mass aqueous solution. About 50 g of the pearl luster pigment was suspended in 0.5 L (liter) of purified water, kept at 75° C. in a water bath, and adjusted to pH 6 with dilute nitric acid. Next, the...

Embodiment 2

[0163] Example 2 is a pearlescent pigment in which layers of flaky glass, rutile titanium dioxide, cerium hydroxide or oxide hydrate, an oxazoline group-containing polymer, and an organosilane coupling agent are sequentially formed.

[0164] As an organosilane coupling agent, 0.5 g of 3-methacryloxypropyltriethoxysilane (manufactured by Unika Co., Ltd. A-174) was prepared, poured into 0.5 L of ion-exchanged water, and stirred for hydrolysis. 2 g of an oxazoline group-containing polymer (EPOCROS WS-700 manufactured by Nippon Shokubai Co., Ltd., resin solid content 25% by mass, oxazoline value 220 g / eq) was prepared and added to the hydrolyzed solution of the silane coupling agent.

[0165] Add about 50 g of pearl luster pigment coated with cerium hydroxide or oxide hydrate to the hydrolyzate, stir for 30 minutes, then filter the suspension with filter paper, take out the filtered solid, and dry at 120°C for 2 hours . In this case, the added amount of the oxazoline group-contai...

Embodiment 3

[0168] Example 3 is a pearly luster pigment in which glass flakes, rutile-type titanium dioxide, a layer containing hydroxide or oxide hydrate of cerium and aluminum, and an oxazoline group-containing polymer were sequentially formed.

[0169] As the aluminum compound, 0.6 g of aluminum chloride hexahydrate was used, and a 2 mass % aqueous solution was prepared, and 0.6 g of cerium nitrate (III) hexahydrate was used, together with 2 mass % aqueous solution and 8.0 g of 1N sodium hydroxide aqueous solution. The same operation as in Example 1 was added to the suspension, washed with water, dried and filtered to obtain a pearly luster pigment coated with hydroxide or oxide hydrate of cerium and aluminum.

[0170] On the other hand, carry out in the same manner as in Example 1, prepare 2.0 g of an oxazoline group-containing polymer (EPOCROS WS-700 manufactured by Nippon Shokubai Co., Ltd., 25% by mass of resin solid content, 220 g / eq of oxazoline value), and drop into to 0.5 L of ...

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Abstract

A pearlescent pigment (100) includes: a flaky substrate (10); a titanium dioxide layer (20) that is formed on the flaky substrate (10); and an oxazoline compound layer (40) that is formed on the titanium dioxide layer (20) with the titanium dioxide layer (20) being interposed between the flaky substrate (10) and the oxazoline compound layer (40), and serves as a top surface of the pearlescent pigment (100).

Description

technical field [0001] The invention relates to a pearl gloss pigment. In addition, the present invention also relates to resin compositions, paints, coating agents, printing inks, and adhesives containing the pearly luster pigments. Background technique [0002] In the past, as pearl luster pigments, flake-shaped aluminum powder, mica flakes or graphite flakes coated with metal oxides such as titanium dioxide or iron oxide, iron oxide particles mainly composed of α-iron oxide crystals, etc. . These pearl luster pigments reflect incident light from the outside on their surface and shine, and if they are blended into paint, they will be on the painted surface, if they are ink, they will be on the drawing or printing surface, and if they are resin compositions, they will be on the resin. The surface of the molded product, together with the color tone of these various textures, provides a unique appearance that is rich in variety and excellent in cosmetics. [0003] Pearl lu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C3/06C09C1/00C09C1/28C09C1/40C09C3/08C09C3/10C09C3/12C09D7/12C09D11/02C09D201/00C09J11/04C08K9/00C08K9/02C08K9/06C08L101/00C08L101/08C09D5/29C09D11/00C09D11/50C09J201/00
CPCC09C1/0015C01P2006/63C09J11/00C08K5/0041C08K3/0033C09C2200/405C09D11/17C09D5/29C09C2220/10C08K3/22C01P2006/64C09D5/36C01P2006/62C09C2200/403C09C1/0024C09D11/037C09C2200/1004C09C2200/102C08K3/013C08K9/04C09C1/36C09C1/24
Inventor 北村武昭猪野寿一
Owner NIPPON SHEET GLASS CO LTD
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