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Water-base correction fluid composition and preparation method thereof

A technology of composition and correction fluid, applied in the direction of coating, etc., can solve problems such as difficulty in painting, unsatisfactory performance of correction fluid, leaving brush marks, etc.

Inactive Publication Date: 2010-01-27
上海乐美文具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance of these correction fluids is still not satisfactory
Common water-based correction fluids usually do not accept correct marks until about 90 seconds after application
Due to the high viscosity of many water-based correction fluids, it is difficult to paint on paper and leave brush marks, and even some water-based correction fluids will crack after the coating film is completely dry

Method used

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  • Water-base correction fluid composition and preparation method thereof
  • Water-base correction fluid composition and preparation method thereof

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preparation example Construction

[0027] The present invention also provides a method for preparing a water-based correction fluid composition, the method comprising: adding a film-forming polymer, an opaque polymer emulsion, a white pigment, and an optional defoamer to a mixed solution of water and a dispersant , Bactericide and antifungal agent and surfactant, after mixing evenly, disperse and grind to obtain water-based correction fluid.

[0028] The present invention has the following main advantages:

[0029] (1) The correction fluid composition of the present invention uses water as the main solvent, thus overcoming the environmental pollution problem caused by correction fluids based on volatile organic solvents in the prior art.

[0030] (2) The correction fluid composition of the present invention adopts an opaque polymer emulsion to partially replace the white pigment (usually titanium dioxide), thereby greatly reducing the cost of raw materials. Considering the ease of consumption of correction flu...

Embodiment 1

[0034] At normal temperature, add deionized water and polyacrylic acid sodium salt (purchased from Deqian Chemical Co., Ltd. as the product of DP-512) as a dispersant to a reactor with a stirrer. After mixing evenly, stir while stirring. Slowly add the following components: acrylic copolymer emulsion (purchased from Rohm and Haas Company as PRIMAL TM AC-268), a styrene-acrylic copolymer emulsion as an opaque polymer emulsion (available from The Dow Chemical Company as 98), titanium dioxide (purchased from DuPont's model is the product of Ti-Pure R-902), uniformly mixed, then dispersed by a high-speed disperser, and finally bead milled until the particle size of the dispersed particles in the dispersion is less than 50 μm, thus obtaining a water-based correction fluid composition. Each component and its amount are listed in Table 1.

Embodiment 2

[0036] At normal temperature, add deionized water and polyacrylic acid ammonium salt (purchased from Deqian Chemical Co., Ltd. as the product of DP-518) as a dispersant to a reactor with a stirrer. After mixing evenly, slowly stir while stirring. Add the following components: styrene-acrylic acid copolymer (available from UCB company's model VN937 product) as a film-forming polymer, styrene-acrylic acid copolymer emulsion (available from Dow Chemical Company) as an opaque polymer emulsion The model is 98), titanium dioxide (purchased from DuPont's model is the product of Ti-Pure R-902), uniformly mixed, then dispersed by a high-speed disperser, and finally bead milled until the particle size of the dispersed particles in the dispersion is less than 50 μm, thus obtaining a water-based correction fluid composition. Each component and its amount are listed in Table 1.

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Abstract

This invention relates to a water-base tippex combination, according to weight it composed by 10 to 30% film-forming polymer, 5 to 30% opacity polymer emulsion, 20 to 50% white pigment, 0.5 to 2% dispersant and 10 to 50% water. The opacity polymer emulsion is styrene - acroleic acid copolymer latices, and styrene - acroleic acid copolymer exist by particle form of monodisperse sphericity. This tippex takes opacity polymer emulsion to substitute titanium pigment, greatly reduce material cost, and has favorable wetting property,, easy applying, the rewritten time is less than 60 seconds.

Description

technical field [0001] The invention relates to a water-based correction fluid composition and a method for preparing the same. Background technique [0002] Correction fluid is used to cover up erroneous marks on paper such as those made by gel pens, gel pens, fountain pens, printers and copiers. Correction fluid is widely used in office supplies and student homework due to its characteristics of quick drying, strong hiding power, and easy use. Typically, correction fluid is applied as a liquid to the markings on paper and then allowed to dry to form a film that covers the underlying markings and provides a surface capable of receiving the correcting markings. [0003] Most of the correction fluids in the prior art use volatile toxic substances such as esters, alkanes, benzenes, and halogenated hydrocarbons as solvents. These organic solvent-based correction fluids have the advantage of being quick drying, typically accepting a correct mark within 30 seconds or so of appl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D10/00
Inventor 黄小喜
Owner 上海乐美文具有限公司
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