KR100740300B1 - A dyeing method of polyamide artificial leather - Google Patents

A dyeing method of polyamide artificial leather Download PDF

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KR100740300B1
KR100740300B1 KR1020000028237A KR20000028237A KR100740300B1 KR 100740300 B1 KR100740300 B1 KR 100740300B1 KR 1020000028237 A KR1020000028237 A KR 1020000028237A KR 20000028237 A KR20000028237 A KR 20000028237A KR 100740300 B1 KR100740300 B1 KR 100740300B1
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artificial leather
dye
polyamide
dyeing
present
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KR20010107060A (en
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정재훈
정상우
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주식회사 코오롱
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/32—Material containing basic nitrogen containing amide groups leather skins
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/62—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds with sulfate, sulfonate, sulfenic or sulfinic groups
    • D06P1/621—Compounds without nitrogen
    • D06P1/622—Sulfonic acids or their salts
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/82—Textiles which contain different kinds of fibres
    • D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
    • D06P3/8209—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing amide groups

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Abstract

본 발명은 폴리아미드 인공피혁의 염색방법에 관한 것으로서, 폴리아미드 인공피혁을 염색 할 때, 함금속 산성염료 염욕내에 CaCl2를 투입함을 특징으로 한다. 본 발명은 인공피혁의 염료 흡착율을 증진시켜 적은량의 염료 사용으로도 양호한 심색성을 얻을 수 있다. 그 결과 염가공료 및 폐수처리 비용을 절감 할 수 있다.The present invention relates to a method of dyeing polyamide artificial leather, characterized in that when the polyamide artificial leather is dyed, CaCl 2 is added to the metal acid dye dye bath. The present invention improves the dye adsorption rate of artificial leather to obtain a good deep colorability even with a small amount of dye. The result is a reduction in the cost of salt processing and waste water treatment.

인공피혁, 염색, 폴리아미드, 폴리우레탄, 극세섬유, 염화칼슘, 산성염료, 함금속, 설폰기Artificial leather, dyeing, polyamide, polyurethane, microfibers, calcium chloride, acid dyes, metals, sulfone groups

Description

폴리아미드 인공피혁의 염색방법 {A dyeing method of polyamide artificial leather} A dyeing method of polyamide artificial leather             

본 발명은 폴리아미드 인공피혁의 염색방법에 관한 것이다.The present invention relates to a method for dyeing polyamide artificial leather.

1970년대 처음 인공피혁이 개발된 이후 제품의 천연피혁이 가지지 못하는 여러 가지 장점, 예를들면 품질의 균일성, 취급의 용이성, 환경 친화성, 가공의 용이성, 가격 경쟁력 우위 등, 으로 인하여 꾸준히 발달되어 왔으며, 최근 동물보호 운동의 확대로 그 유용성이 점차 커지고 있는 추세이다. 이와 같이 인공피혁은 천연피혁에 비해 여러 가지 장점을 가지고 있으나, 제품의 특성상 몇가지 문제점을 가지고 있다.Since the first development of artificial leather in the 1970s, it has been developed steadily due to various advantages that the natural leather of the product does not have, such as quality uniformity, ease of handling, environmental friendliness, ease of processing, and price competitiveness. Recently, the usefulness is gradually increasing due to the expansion of the animal protection movement. As such, artificial leather has various advantages over natural leather, but has some problems due to the characteristics of the product.

폴리아미드 인공피혁은 천연피혁과 유사한 외관과 촉감을 발현하기 위하여 폴리아미드 극세사로 제조된 부직포 상에 폴리우레탄 수지를 함침시키고, 버핑(기모) 및 염색처리 하는 방법으로 제조된다.Polyamide artificial leather is manufactured by impregnating a polyurethane resin on a nonwoven fabric made of polyamide microfiber, buffing and brushing to express a look and feel similar to that of natural leather.

이와 같이 폴리아미드 인공피혁은 극세섬유로 구성되며, 또한 폴리우레탄을 함유하고 있기 때문에 일반직물에 비해 동일한 색상을 얻은데 보다 많은 염료가 소 요된다. 특히 블랙과 같은 농색 발현을 위해서는 일반 직물의 염색시 보다 3~6배 정도의 염료가 소요된다.Thus, polyamide artificial leather is composed of ultrafine fibers, and also contains polyurethane, so that more dye is required to obtain the same color as compared to general fabrics. In particular, for the expression of dark colors such as black, it takes about 3 to 6 times more dye than normal fabrics.

폴리아미드 인공피혁의 경우 담색은 1% o.w.f., 중색은 5% o.w.f., 농색은 10% o.w.f. 이상의 염료가 투입되며, 특히 블랙과 같은 초농색의 경우 15~20% o.w.f. 정도의 염료가 사용되기 때문에 일반적인 원단의 염색에 비해 가공료가 5~10배 정도 상승하게 된다. 염색시 염료의 소요량이 많으면 염가공 비용이 증가할 뿐만 아니라 염색후 염욕내에 잔존 염료가 증가하여 폐수처리 비용이 상승하고 환경오염 문제도 발생한다.1% o.w.f. in pale colors, 5% o.w.f. in neutral colors and 10% o.w.f. Above dyes are added, especially 15-20% o.w.f. Because of the amount of dye used, the processing cost is increased by 5 to 10 times compared to general fabric dyeing. If the amount of dye is required during dyeing, not only the salt processing cost increases but also the remaining dye in the dye bath after dyeing increases the cost of waste water treatment and causes environmental pollution.

본 발명의 목적은 이와 같은 종래의 문제점을 해결하기 위하여 폴리아미드 인공피혁의 염색시 염료 흡착율을 개선시키는 방법을 제공하기 위한 것이다.An object of the present invention is to provide a method for improving the dye adsorption rate during the dyeing of polyamide artificial leather in order to solve such a conventional problem.

본 발명은 폴리아미드 인공피혁의 염료 흡착율을 향상시켜 적은양의 염료로도 양호한 심색성을 얻을 수 있는 폴리아미드 인공피혁의 염색방법을 제공하고자 한다. 아울러 본 발명은 염가공료 및 폐수처리 비용이 저렴하며 환경오염 문제가 없는 폴리아미드 인공피혁의 염색방법을 제공하고자 한다.
The present invention seeks to provide a method for dyeing polyamide artificial leather which can improve the dye adsorption rate of polyamide artificial leather to obtain a good color depth even with a small amount of dye. In addition, the present invention is to provide a dyeing method of polyamide artificial leather is low cost of salt processing and waste water treatment and there is no environmental pollution problem.

본 발명은 폴리아미드 인공피혁의 염색방법에 관한 것이다. 더욱 구체적으로 본 발명은 폴리우레탄이 함침되어 있는 폴리아미드 극세섬유로 구성된 인공피 혁을 염색함에 있어서, 함금속 산성염료 염욕내에 CaCl2를 투입함을 특징으로 하는 폴리아미드 인공피혁의 염색방법에 관한 것이다.The present invention relates to a method for dyeing polyamide artificial leather. More specifically, the present invention relates to a method for dyeing polyamide artificial leather, which is characterized in that CaCl 2 is added to a metal acid dye dye bath in dyeing artificial leather composed of polyamide microfine fibers impregnated with polyurethane. will be.

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

본 발명은 폴리아미드 인공피혁을 함금속 산성염료로 염색할 때 염욕내에 CaCl2를 투입하여 폴리아미드 인공피혁의 염료 흡착율을 향상시킨다. CaCl2의 투입량은 0.1~5% o.w.f.가 바람직 하다. 본 발명에서는 이들 투입량을 특별하게 한정하는 것은 아니다. 그러나 CaCl2의 투입량이 너무 적을 경우에는 염료 흡착율 개선효과가 미미하고, 너무 많을 경우에는 더 이상의 염료 흡착율 증가없이 염색비용만 상승하게 된다.The present invention improves the dye adsorption rate of polyamide artificial leather by injecting CaCl 2 into the dye bath when the polyamide artificial leather is dyed with a metal acid dye. The CaCl 2 input amount is preferably 0.1-5% owf. In the present invention, these doses are not particularly limited. However, when the amount of CaCl 2 input is too small, the effect of improving the dye adsorption rate is insignificant, and when the amount is too high, only the dyeing cost is increased without further dye adsorption rate.

현재 시판중인 10여종의 함금속 산성염료로 폴리아미드 인공피혁을 염색 할 때 염욕내에 CaCl2를 투입하지 않는 경우 블랙색상을 얻기 위해서는 염료 사용량이 18% o.w.f. 이상이 되어야 하며, 염료 흡착율도 70% 이하 수준에 불과하다. 그러나 본 발명과 같이 CaCl2를 염욕에 첨가하는 경우 12% o.w.f.의 염료 사용만으로 블랙색상을 얻을 수 있고, 염료 흡착율도 거의 100% 수준이 된다.When dyeing polyamide artificial leather with about 10 kinds of acid-containing dyes on the market, if CaCl 2 is not added to the dye bath, the dye usage should be 18% owf or more to obtain black color, and dye adsorption rate is 70% or less. It's just a level. However, when CaCl 2 is added to the salt bath as in the present invention, a black color can be obtained only by using a dye of 12% owf, and the dye adsorption rate is almost 100%.

상기 함금속 산성염료 내에 설폰기(-SO3Na)가 있는 경우와 없는 경우 모두 CaCl2첨가에 따른 본 발명의 심색효과를 얻을 수 있다. 그러나 염료자체의 특성상 함금속 산성염료 내에 설폰기(-SO3Na)가 없는 경우가 심색효과에 더욱 바람직 하 다. 본 발명은 염욕내에 CaCl2를 첨가하여 염료 사용량을 약 30% 정도 줄일 수 있다.The presence or absence of sulfone groups (-SO 3 Na) in the acid-containing metal dyes can be obtained the deep color effect of the present invention by adding CaCl 2 . However, it is more preferable for the deep color effect that there is no sulfone group (-SO 3 Na) in the acid-containing metal dye due to the nature of the dye itself. The present invention can reduce the amount of dye used by about 30% by adding CaCl 2 in the salt bath.

본 발명에 있어서 심색도(L치) 및 세탁견뢰도는 아래 방법으로 평가하였다.Deep color depth (L value) and wash fastness in the present invention was evaluated by the following method.

·심색도(LDeep color (L ** 치)Chi)

심색도 L*치의 측정은 자동 측색장치(Computer Color Matching)를 사용하였다. L*치는 색좌표에서 명도를 나타내며, 범위는 0~100이고, 0이면 완전블랙, 100이면 백색을 의미한다. 따라서 L*치가 낮을수록 흑도 또는 심색도가 좋다. The depth of color L * value was measured using a computer color matching device. The L * value represents the brightness in the color coordinates. The range is 0 to 100, where 0 means full black and 100 means white. Therefore, the lower the L * value, the better the blackness or depth.

·세탁견뢰도Laundry fastness

KS K 0430 A-1 방법으로 평가 하였다.KS K 0430 A-1 was evaluated by the method.

이하 실시예 및 비교실시예를 통하여 본 발명을 더욱 구체적으로 살펴본다. 그러나 본 발명이 아래 실시예에만 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. However, the present invention is not limited only to the following examples.

실시예 1Example 1

일반 래피드 염색기에 설폰기를 함유하고 있지 않는 함금속 산성염료[뉴트릴란 블랙(Newtrilan Black) S-2B]의 염욕(농도 13% o.w.f., Ph=4, 욕비 1:20)을 준 비한 다음, 여기에 CaCl2 1% o.w.f.를 첨가한다. 계속해서 상기 래피드 염색기에 폴리우레탄이 함침되어 있는 폴리아미드 극세섬유로 구성된 폴리아미드 인공피혁을 투입하여 98℃에서 60분간 염색한다. 계속해서 염색완료 후 잔류 염욕을 배수하고 새로운 용수를 공급하여 80℃에서 30분간 통상의 방법으로 고착처리 한다. 염색된 폴리아미드 인공피혁의 심색도와 세탁견뢰도를 평가해 본 결과는 표 1과 같다.Prepare a salt bath (concentration 13% owf, Ph = 4, bath ratio 1:20) of a metal acid dye (Newtrilan Black S-2B) that does not contain a sulfone group in a general rapid dyeing machine. CaCl 2 1% owf is added. Subsequently, a polyamide artificial leather composed of polyamide microfibers impregnated with polyurethane is introduced into the rapid dyeing machine and dyed at 98 ° C. for 60 minutes. Subsequently, after dyeing, the remaining salt bath is drained and fresh water is supplied and fixed at 80 ° C. for 30 minutes in a conventional manner. The results of evaluating the deep color and wash fastness of the dyed polyamide artificial leather are shown in Table 1.

실시예 2Example 2

설폰기를 함유하는 함금속 산성염료[뉴트릴란 블랙(Newtrilan Black) M-R]의 염욕(농도 13% o.w.f., Ph=4, 욕비 1:20)을 사용한 것을 제외하고는 실시예 1과 동일한 공정 및 조건으로 폴리아미드 인공피혁을 염색, 고착처리 한다. 염색된 폴리아미드 인공피혁의 심색도와 세탁견뢰도를 평가해 본 결과는 표 1과 같다.In the same process and conditions as in Example 1, except that a salt bath (concentration 13% owf, Ph = 4, bath ratio 1:20) of a metal acid dye containing a sulfone group (Newtrilan Black MR) was used. Dye and fix polyamide artificial leather. The results of evaluating the deep color and wash fastness of the dyed polyamide artificial leather are shown in Table 1.

비교실시예 1Comparative Example 1

일반 래피드 염색기에 설폰기를 함유하고 있지 않는 함금속 산성염료[뉴트릴란 블랙(Newtrilan Black) S-2B]의 염욕(농도 18% o.w.f., Ph=4, 욕비 1:20)을 준비 한다. 상기 염욕에 CaCl2 는 첨가하지 않는다. 계속해서 상기 래피드 염색기에 폴리우레탄이 함침되어 있는 폴리아미드 극세섬유로 구성된 폴리아미드 인공피혁을 투입하여 98℃에서 60분간 염색한다. 계속해서 염색완료 후 잔류 염 욕을 배수하고 새로운 용수를 공급하여 80℃에서 30분간 통상의 방법으로 고착처리 한다. 염색된 폴리아미드 인공피혁의 심색도와 세탁견뢰도를 평가해 본 결과는 표 1과 같다.Prepare a salt bath (concentration 18% owf, Ph = 4, bath ratio 1:20) of a metal acid dye (Newtrilan Black S-2B) containing no sulfone group in a general rapid dyeing machine. CaCl 2 is not added to the salt bath. Subsequently, a polyamide artificial leather composed of polyamide microfibers impregnated with polyurethane is introduced into the rapid dyeing machine and dyed at 98 ° C. for 60 minutes. After completion of dyeing, the remaining salt bath is drained and fresh water is supplied and fixed at 80 ° C. for 30 minutes in a conventional manner. The results of evaluating the deep color and wash fastness of the dyed polyamide artificial leather are shown in Table 1.

비교실시예 2Comparative Example 2

설폰기를 함유하는 산성염료[뉴트릴란 블랙(Newtrilan Black) M-R]의 염욕(농도 13% o.w.f., Ph=4, 욕비 1:20)을 사용한 것을 제외하고는 비교실시예 1과 동일한 공정 및 조건으로 폴리아미드 인공피혁을 염색, 고착처리 한다. 염색된 폴리아미드 인공피혁의 심색도와 세탁견뢰도를 평가해 본 결과는 표 1과 같다.Except for using a salt bath (concentration 13% owf, Ph = 4, bath ratio 1:20) of an acid dye containing a sulfone group (Newtrilan Black MR), poly The amide artificial leather is dyed and fixed. The results of evaluating the deep color and wash fastness of the dyed polyamide artificial leather are shown in Table 1.

심색도 및 세탁견뢰도 평가 결과Deep color and wash fastness evaluation results 구 분division 심색도(L*치)Depth (L * inch) 세탁견뢰도(급)Wash fastness (class) 실시예 1Example 1 11.4811.48 33 실시예 2Example 2 11.5311.53 33 비교실시예 1Comparative Example 1 13.8113.81 33 비교실시예 2Comparative Example 2 14.0214.02 33

본 발명은 염색시 염욕내에 CaCl2 를 첨가하면서 폴리아미드 인공피혁의 염료 흡착율을 개선시킬 수 있다. 그 결과 적은 염료 사용으로도 양호한 심색성을 얻을 수 있어서 염가공 비용 및 폐수처리 비용도 절감된다.The present invention can improve the dye adsorption rate of polyamide artificial leather while adding CaCl 2 in the dye bath during dyeing. As a result, good color rendition can be obtained even with the use of less dyes, thereby reducing the cost of salt processing and wastewater treatment.

Claims (3)

폴리우레탄이 함침되어 있는 폴리아미드 극세섬유로 구성된 인공피혁을 염색함에 있어서, 함금속 산성염료 염욕내에 0.1~5% o.w.f의 CaCl2를 투입하여 상기 인공피혁 내의 염료흡착율이 70%~100%가 되도록 함을 특징으로 하는 폴리아미드 인공피혁의 염색방법.In dyeing artificial leather composed of polyamide microfine fibers impregnated with polyurethane, 0.1-5% owf of CaCl 2 is added to the dye-containing metal dye dye so that the dye adsorption rate in the artificial leather is 70% to 100%. Method for dyeing polyamide artificial leather, characterized in that. 1항에 있어서, 함금속 산성염료에 설폰기(-SO3Na)가 존재하는 것을 특징으로 하는 폴리아미드 인공피혁의 염색방법.The method of dyeing a polyamide artificial leather according to claim 1, wherein a sulfonic group (-SO 3 Na) is present in the metal acid dye. 1항에 있어서, 함금속 산성염료가 논-설폰 타입(Non-Sulphone type)인 것을 특징으로 하는 폴리아미드 인공피혁의 염색방법.2. The method of dyeing polyamide artificial leather according to claim 1, wherein the acid-containing metal dye is a non-sulphone type.
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JPH03130479A (en) * 1989-10-17 1991-06-04 Toyo Ink Mfg Co Ltd Coloration of leather
JPH0450385A (en) * 1990-06-15 1992-02-19 Kanebo Ltd Production of silk fabric dyed to dark color
KR19980075764A (en) * 1997-04-01 1998-11-16 윤영표 How to dye silk fabric

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JPH03130479A (en) * 1989-10-17 1991-06-04 Toyo Ink Mfg Co Ltd Coloration of leather
JPH0450385A (en) * 1990-06-15 1992-02-19 Kanebo Ltd Production of silk fabric dyed to dark color
KR19980075764A (en) * 1997-04-01 1998-11-16 윤영표 How to dye silk fabric

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