KR100345473B1 - Manufacturing method of titanium dioxide dispersing solution in high concentration having excellent dispersion - Google Patents

Manufacturing method of titanium dioxide dispersing solution in high concentration having excellent dispersion Download PDF

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Publication number
KR100345473B1
KR100345473B1 KR1019960070227A KR19960070227A KR100345473B1 KR 100345473 B1 KR100345473 B1 KR 100345473B1 KR 1019960070227 A KR1019960070227 A KR 1019960070227A KR 19960070227 A KR19960070227 A KR 19960070227A KR 100345473 B1 KR100345473 B1 KR 100345473B1
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Prior art keywords
titanium dioxide
high concentration
dispersing solution
manufacturing
dispersion
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KR1019960070227A
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Korean (ko)
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KR19980051335A (en
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이경준
조상원
서승원
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주식회사 효성
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/70—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/10—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/06—Load-responsive characteristics
    • D10B2401/061—Load-responsive characteristics elastic

Abstract

PURPOSE: Provided is a manufacturing method of a titanium dioxide dispersing solution in high concentration which is characterized by having excellent dispersion and increasing workability and productivity. In producing a spandex yarn, the titanium dioxide dispersing solution is useful for a dulling agent. CONSTITUTION: A titanium dioxide dispersing solution in high concentration is characteristically obtained by the steps of: adding 300pts.wt. of titanium dioxide to 100pts.wt. of dimethyl acetamide; adding 0.01-1wt.% of bromo acetic acid based on the titanium dioxide; and then milling the mixture thereof.

Description

분산성이 우수한 고농도 티타늄 디옥사이드 분산액의 제조방법Manufacturing method of high concentration titanium dioxide dispersion with excellent dispersibility

본 발명은 스판덱스사 생산공정에 사용되는 디메틸아세트아미드 상의 티타늄 디옥사이드 분산액의 제조방법에 관한 것으로서, 더욱 상세하게로는 분산액의 분산성을 높여 작업성을 향상시키고, 농도를 높여 생산성을 향상시키는 방법에 관한 것이다.The present invention relates to a method for producing a titanium dioxide dispersion on dimethylacetamide used in the spandex production process, and more particularly to a method for improving the dispersibility of the dispersion to improve workability, increase the concentration to improve productivity. It is about.

일반적으로 디메틸아세트아미드 상의 티타늄 디옥사이드 분산액은 스판덱스사 생산에 있어서, 소광제로 사용되는 것으로서, 그 분산성이 우수하면 고농도의 분산액을 만들 수 있게 되고, 이로 인해 공정을 공간적으로 줄일 수 있고, 조제횟수를 줄일 수 있어 스판덱스사의 생산성을 향상시킬 수 있게 된다.In general, the titanium dioxide dispersion on dimethylacetamide is used as a matting agent in the production of spandex, and if the dispersibility is excellent, it is possible to make a high concentration dispersion, thereby reducing the process space and the number of preparations. It can reduce the productivity of spandex.

상기 분산액을 제조함에 있어서, 종래의 기술에서는 티타늄 디옥사이드에 시트르산, 말레익산 등의 다가 산을 첨가하여 분산성을 개선하거나, 클로로아세트산을 사용하여 분산성을 개선하려고 하였다. 그러나, 상기에서 다가 산을 첨가하는 경우에는 분산성 개선이 뚜렷하지 못할 뿐 아니라, pH 변화 등을 가져오게 되고, 클로로 아세트산을 첨가하는 경우에는 분산성의 효율이 떨어지는 문제가 생긴다.In preparing the dispersion, in the prior art, polydisperse acids such as citric acid and maleic acid were added to titanium dioxide to improve dispersibility or chloroacetic acid to improve dispersibility. However, in the case of the addition of the polyvalent acid, not only the improvement of dispersibility is obvious, but also a change in pH, etc., and the addition of chloro acetic acid causes a problem of inferior dispersibility efficiency.

따라서, 디메틸아세트아미드 상의 티타늄 디옥사이드 분산액은 분산성이 우수한 상태에서 농도를 높일 수 없기 때문에 생산성을 높일 수 없었다.Therefore, the titanium dioxide dispersion on dimethylacetamide could not increase productivity because the concentration could not be increased in the state of excellent dispersibility.

본 발명은 상기와 같은 문제를 해결하기 위한 것으로서, 분산성이 우수한 상태에서 농도를 높임으로써 작업성과 생산성을 향상시킬 수 있는 고농도 티타늄 디옥사이드 분산액을 제조하는 방법을 제공함을 그 목적으로 한다.The present invention is to solve the above problems, an object of the present invention is to provide a method for producing a high concentration of titanium dioxide dispersion which can improve the workability and productivity by increasing the concentration in the excellent dispersibility state.

본 발명은 디메틸아세트아미드 상의 티타늄 디옥사이드 분산액을 제조함에 있어서, 디메탈아세트아미드와 티타늄 디옥사이드에 브로모아세트산을 첨가하는 것을 특징으로 한다.The present invention is characterized by adding bromoacetic acid to dimetalacetamide and titanium dioxide in preparing a titanium dioxide dispersion on dimethylacetamide.

이하, 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail.

본 발명에서는 디메틸아세트아미드 상의 티타늄 디옥사이드 분산액을 제조함에 있어서, 디메틸아세트아미드와 티타늄 디옥사이드에 종래의 다가산이나 클로로아세트 산 대신 일가산이면서도 브로모치환체의 작용으로 산도가 높고, pH에 영향을 주지 않는 브로모 아세트산을 첨가한다.In the present invention, in preparing a titanium dioxide dispersion on dimethylacetamide, the acidity is high by the action of a bromo substituent in addition to the conventional polyhydric acid or chloroacetic acid to dimethylacetamide and titanium dioxide, and does not affect pH. Bromo acetic acid is added.

상기에서 티타늄 디옥사이드는 디메틸아세트아미드 100 중량부에 대하여 300 중량부의 양으로 첨가하며, 브로모 아세트산은 티타늄 디옥사이드에 대하여 0.01 - 1 중량%의 양으로 첨가한다. 만일 브로모 아세트산의 첨가량이 티타늄 디옥사이드에 대하여 0.01 중량% 미만이면, 분산성이 우수하지 못하며, 1 중량%를 초과하게 되면 효과가 없다.In the above, titanium dioxide is added in an amount of 300 parts by weight based on 100 parts by weight of dimethylacetamide, and bromo acetic acid is added in an amount of 0.01-1% by weight based on titanium dioxide. If the amount of bromo acetic acid added is less than 0.01 wt% with respect to titanium dioxide, dispersibility is not excellent, and if it exceeds 1 wt%, it is not effective.

본 발명에서는 티타늄 디옥사이드에 브로모아세트산을 첨가함으로써 클로로아세트 산을 첨가한 경우보다 분산성이 더 우수한 디메틸아세트아미드 상의 티타늄 디옥사이드 분산액을 제조하게 된다.In the present invention, the addition of bromoacetic acid to titanium dioxide produces a titanium dioxide dispersion on dimethylacetamide which is more dispersible than when chloroacetic acid is added.

이하, 본 발명을 실시예 및 비교예를 통해 설명하면 다음과 같다.Hereinafter, the present invention will be described through Examples and Comparative Examples.

[실시예 1]Example 1

디메틸아세트아미드 1kg에 티타늄 디옥사이드 3kg을 가하고 이에 브로모아세트산 3g(티타늄 디옥사이드 대비 0.1 중량%)를 가한 후 밀링(milling)를 하였다. 분산성 평가는 직경 1cm 시험관에 30cm높이로 분산액을 담고 시간별로 가라앉은 티타늄 디옥사이드의 양을 측정함으로써 실시하였다. 그 결과를 다음 표 1에 나타내었다.3 kg of titanium dioxide was added to 1 kg of dimethylacetamide, and 3 g of bromoacetic acid (0.1 wt% of titanium dioxide) was added thereto, followed by milling. Dispersibility evaluation was carried out by measuring the amount of titanium dioxide submerged in a 1 cm diameter test tube 30 cm high containing the dispersion liquid. The results are shown in Table 1 below.

[비교예 1]Comparative Example 1

디메틸아세트아이드 1kg에 티타늄 디옥사이드 3kg을 가하고 이에 시트르산 3g(티타늄 디옥사이드 대비 0.1 중량%)을 가한 후 밀링(milling)을 하였다. 실시예 1과 동일한 방법으로 분산성을 측정하였으며, 그 결과를 다음 표 1에 나타내었다.3 kg of titanium dioxide was added to 1 kg of dimethylacetide, and 3 g of citric acid (0.1 wt% of titanium dioxide) was added thereto, followed by milling. Dispersibility was measured in the same manner as in Example 1, and the results are shown in Table 1 below.

[비교예 2]Comparative Example 2

디메틸아세트아미드 1kg에 티타늄 디옥사이드 3kg을 가하고 이에 클로로아세트산 3g(티타늄 디옥사이드 대비 0.1 중량%)을 가한 후 밀링(milling)을 하였다. 실시예 1과 동일한 방법으로 분산성을 측정하였으며, 그 결과를 다음 표 1에 나타내었다.3 kg of titanium dioxide was added to 1 kg of dimethylacetamide, and 3 g of chloroacetic acid (0.1% by weight of titanium dioxide) was added thereto, followed by milling. Dispersibility was measured in the same manner as in Example 1, and the results are shown in Table 1 below.

[표 1]TABLE 1

본 발명에 의해 제조되는 디메틸아세트아미드 상의 티타늄 디옥사이드 분산액은 분산성이 우수하여 생산성의 향상을 가져온다.The titanium dioxide dispersion on dimethylacetamide prepared by the present invention is excellent in dispersibility, leading to an improvement in productivity.

Claims (1)

디메틸아세트아미드 상의 티타늄 디옥사이드 분산액을 제조함에 있어서, 디메틸아세트아미드와 티타늄디옥사이드에 브로모아세트산을 상기 타타늄디옥사이드 대비 0.01 - 1중량% 첨가함을 특징으로 하는 분산성이 우수한 고 농도 티타늄 디옥사이드 분산액 제조방법.In preparing a titanium dioxide dispersion on dimethylacetamide, a method for preparing a high concentration titanium dioxide dispersion having excellent dispersibility is characterized by adding 0.01% to 1% by weight of bromo acetic acid to dimethylacetamide and titanium dioxide. .
KR1019960070227A 1996-12-23 1996-12-23 Manufacturing method of titanium dioxide dispersing solution in high concentration having excellent dispersion KR100345473B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663284A (en) * 1970-01-09 1972-05-16 Marine Colloids Inc Titanium dioxide suspensions
US4042557A (en) * 1975-09-02 1977-08-16 E. I. Du Pont De Nemours And Company Process for preparing a high concentration of titanium dioxide slurry in dimethylacetamide or dimethylformamide
KR940000204A (en) * 1992-06-22 1994-01-03 엘리스 에프. 스모릭 Welding rod to reduce the generation of smoke
US5393510A (en) * 1992-07-22 1995-02-28 Rheox, Inc. High solids content titanium dioxide suspension
KR970043406A (en) * 1995-12-29 1997-07-26 백영배 Method for preparing titanium dioxide dispersion on dimethylacetamide

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663284A (en) * 1970-01-09 1972-05-16 Marine Colloids Inc Titanium dioxide suspensions
US4042557A (en) * 1975-09-02 1977-08-16 E. I. Du Pont De Nemours And Company Process for preparing a high concentration of titanium dioxide slurry in dimethylacetamide or dimethylformamide
KR940000204A (en) * 1992-06-22 1994-01-03 엘리스 에프. 스모릭 Welding rod to reduce the generation of smoke
US5393510A (en) * 1992-07-22 1995-02-28 Rheox, Inc. High solids content titanium dioxide suspension
KR970043406A (en) * 1995-12-29 1997-07-26 백영배 Method for preparing titanium dioxide dispersion on dimethylacetamide

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