KR100647872B1 - Method of biodegradable coating of natural fibers - Google Patents

Method of biodegradable coating of natural fibers Download PDF

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Publication number
KR100647872B1
KR100647872B1 KR1020050074859A KR20050074859A KR100647872B1 KR 100647872 B1 KR100647872 B1 KR 100647872B1 KR 1020050074859 A KR1020050074859 A KR 1020050074859A KR 20050074859 A KR20050074859 A KR 20050074859A KR 100647872 B1 KR100647872 B1 KR 100647872B1
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coating
natural fibers
mixture
gelatin
fibers
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KR1020050074859A
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Korean (ko)
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김은희
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김은희
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D189/00—Coating compositions based on proteins; Coating compositions based on derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/15—Proteins or derivatives thereof

Abstract

A method for coating natural fibers with a biodegradable coating layer is provided to avoid the use of a chemical binder while maintaining the texture and contact feel of natural fibers, and to prevent environmental pollution while not adversely affecting the human body. The method for coating natural fibers with a biodegradable coating layer comprises the steps of: providing animal proteins containing 10-30 wt% of gelatin, 10-60 wt% of glycerin and 30-60 wt% of water; adding less than 1 wt% of enzyme to the mixture; adding 1-15 wt% of a dye, gold powder or hologram dye thereto; introducing the resultant mixture into a coating device; coating transfer paper with the mixture via roller coating or knife coating while feeding the paper to the coating device; and supplying natural fibers to a mold having desired patterns and/or letters and applying the coated transfer paper onto the natural fibers via hot melting at a temperature of 75-90 deg.C.

Description

천연섬유의 생분해 가능한 코팅방법{Method of biodegradable coating of natural fibers} Method of biodegradable coating of natural fibers

본 발명은 천연섬유의 생분해 가능한 코팅방법에 관한 것으로, 좀 더 구체적으로는 순수 단백질을 주원료로 한 코팅액으로 천연섬유를 처리하여 사용 후 폐기시 자연상태에서 생분해되어 환경오염을 일으킬 염려가 없고 인체에도 무해한 천연섬유의 생분해 가능한 코팅방법에 관한 것이다.The present invention relates to a biodegradable coating method of natural fiber, and more specifically, natural fiber is treated with a coating liquid containing pure protein as a main raw material, so that it is biodegraded in a natural state when discarded after use and does not cause environmental pollution. The present invention relates to a biodegradable coating method of harmless natural fibers.

천연섬유는 솜이나 삼 껍질 또는 명주실이나 털과 같은 천연물의 세포로 되어 있는 섬유로서, 면, 마 등과 같은 식물성 섬유, 생사 및 양모와 같은 동물성 섬유 및 석면 등과 같은 광물성 섬유로 분류되며, 이러한 천연섬유와 대조되는 인조섬유는 금은사와 같은 금속 섬유와 유리, 암석 등과 같은 규산염 섬유로 구성되는 무기질 섬유, 및 비스코오스 레이온, 메리노바, 아세테이트 등과 같은 유기질 섬유를 비롯하여, 나일론, 폴리에스테르, 폴리에틸렌, 폴리우레탄 등과 같은 순화학 합성품인 합성섬유로 분류된다.Natural fibers are fibers composed of cells of natural products such as cotton, hemp skin or silk thread or hair, and are classified into vegetable fibers such as cotton and hemp, animal fibers such as raw silk and wool, and mineral fibers such as asbestos. In contrast to man-made fibers are nylon, polyester, polyethylene, poly, including inorganic fibers consisting of metal fibers such as gold and silver and silicate fibers such as glass, rock, and the like, and organic fibers such as viscose rayon, merinova, acetate, etc. It is classified as synthetic fiber which is a pure chemical synthetic product such as urethane.

이들 중 인조섬유로서의 합성섬유는 각종 디자인이나 이미지를 입히기 위하 여 염색 또는 인쇄가 비교적 자유로우나, 삼베나 명주와 같은 천연섬유에 무늬 또는 문자 및 이미지를 코팅하기 위해서는, 합성 고분자 화합물 등을 이용한 바인더를 천연섬유의 코팅할 부분에 등사하거나 날염하는 방법이 종래 이용되었다.Among them, synthetic fibers as artificial fibers are relatively free to dye or print to coat various designs or images, but binders using synthetic polymer compounds or the like may be used to coat patterns or texts and images on natural fibers such as burlap or silk. The method of copying or printing the natural fiber to be coated is conventionally used.

즉, 합성섬유와는 달리 삼베와 같은 천연섬유의 경우 표면을 긁어내어 찍는 등사 날염식으로 그림이나 문자를 입혔는데, 이 때 종래에는 순화학 화합물인 바인더를 이용하였으며, 이로 인하여 일정 기간 사용 후 날염된 섬유를 폐기하였을 때 바인더가 분해되지 않고 썩지 않아 환경오염의 원인이 될 수 있었다.In other words, unlike synthetic fibers, natural fibers such as burlap were coated with pictures or letters by scraping the surface by scraping the surface. In this case, a binder using a pure chemical compound was used. When the discarded fibers are discarded, the binder does not decompose and decay, which may cause environmental pollution.

또한, 이러한 인조 화합물의 사용으로 천연섬유의 재질감 또는 촉감이 감소하고 인체에도 바람직하지 않은 영향을 미칠 수 있었다.In addition, the use of such artificial compounds could reduce the texture or feel of natural fibers and have an undesirable effect on the human body.

따라서, 자연에서 생분해 가능하여 환경오염의 염려가 없고 인체에도 무해한 천연섬유의 코팅 방법에 대한 요구가 있어 왔으며, 본 발명자는 이러한 관점에서 생분해 가능한 천연섬유의 코팅 물질을 연구한 결과 본 발명을 완성하게 되었다.Therefore, there has been a need for a method for coating natural fibers that are biodegradable in nature and thus have no concern for environmental pollution and are harmless to the human body, and the present inventors have studied the coating material of biodegradable natural fibers in this respect to complete the present invention. It became.

본 발명의 목적은 천연섬유의 코팅을 위해 종래 기술에서 사용되던 화학 바인더 대신 순수 동물성 단백질을 주원료로 하여 생분해 가능한 천연섬유의 코팅방법을 제공하는 것이다.It is an object of the present invention to provide a biodegradable natural fiber coating method using pure animal protein as a main raw material instead of a chemical binder used in the prior art for coating natural fiber.

본 발명의 또 다른 목적은 종래 기술에서 사용되었던 화학 바인더 대신, 동물성 단백질 뿐만 아니라 오일과 수분, 극소량의 효소를 사용하여 천연섬유를 코팅함으로써, 사용 후 폐기시 자연에서 생분해될 수 있는 천연섬유의 코팅방법을 제공 하는 것이다.Another object of the present invention is to coat natural fibers using animal oil as well as oil, moisture, and a small amount of enzymes, instead of chemical binders used in the prior art, coating natural fibers that can be biodegradable in nature upon disposal after use. Is to provide a way.

상기한 바의 목적을 달성하기 위한 본 발명의 생분해 가능한 천연섬유의 코팅방법은 동물성 단백질로서 젤라틴 10-30 중량%, 글리세린 10-60 중량% 및 물 30-60 중량%의 혼합물에 1 중량% 미만의 효소를 첨가하여 교반 혼합한 후, 염료, 금 분말 또는 홀로그램 염료를 1-15 중량% 첨가하고, 이 혼합물을 코팅기에 넣고 전사용 종이를 공급하면서 상기 혼합물로 롤러 코팅 또는 나이프 코팅하고, 일정한 무늬, 문자 또는 이들 모두를 음양각한 금형 위에 천염섬유를 공급하면서 상기 코팅된 전사 종이를 75-90℃의 온도로 상기 천연섬유 위로 열접착 도포하는 것으로 구성된다. The method of coating the biodegradable natural fibers of the present invention to achieve the above object is less than 1% by weight in a mixture of gelatin 10-30% by weight, glycerin 10-60% by weight and water 30-60% by weight as an animal protein. After stirring and mixing the enzyme, 1-15% by weight of the dye, gold powder or hologram dye is added, the mixture is put into the coating machine and the roller or knife coated with the mixture while feeding the transfer paper, And thermally adhesively apply the coated transfer paper onto the natural fiber at a temperature of 75-90 ° C. while supplying fabric fibers onto a mold embossed with letters or both.

상기에서 젤라틴은 동물의 뼈, 가죽, 힘줄 등에 포함되어 있는 불용성 단백질인 콜라겐을 물과 함께 가열하여 분해해서 수용성으로 만든 유도 단백질의 일종으로, 본 발명에서는 분말 형태의 젤라틴을 물에 용해시켜 이용한다. Gelatin is a kind of derived protein made by dissolving collagen which is an insoluble protein contained in an animal bone, leather, tendon, etc. together with water to make it water-soluble. In the present invention, gelatin in powder form is used by dissolving it in water.

젤라틴은 냉수에는 팽윤하고 온수에는 녹아서 졸(sol)이 되며, 다시 냉각시키면 젤리화되므로, 이러한 응고성을 이용하여 일반적으로 음식에 섞어 형태를 갖추기 위해 사용되며, 각종 젤리과자, 다진 음식, 냉동요리의 장식 등 요리용 외에도 아이스크림의 안정제, 햄과 소시지의 결착제, 일반 단백질성 식품(어육을 다진 음식 등)의 증량제, 사진 감광막, 고형 배지, 지혈제, 약용 캡슐제 등으로 쓰인다.Gelatin swells in cold water, melts in hot water, and becomes a sol, and when cooled again, it becomes jelly, so it is generally used to form a mixture by using this coagulability. In addition to cooking, etc., it is used as a stabilizer for ice cream, a binder for ham and sausage, an extender for general protein foods (such as minced meat), a photoresist film, a solid medium, a hemostatic agent, and a medicinal capsule.

상기 젤라틴은 천연의 동물성 단백질로서 생분해 가능하다.The gelatin is biodegradable as a natural animal protein.

본 발명에서 젤라틴 분말과 물의 혼합 비율은 중량비로 3:7 정도가 적당하다. In the present invention, the mixing ratio of gelatin powder and water is about 3: 7 by weight.

젤라틴 분말이 이 비율을 넘어 과량 사용되면 천연섬유의 코팅시 코팅 혼합물의 퍼짐성이 원활하지 못하며, 반대로 상기 비율에 모자라게 사용되면 섬유에 대한 코팅재의 결합성이 떨어져 원하는 정도의 코팅 효과를 얻을 수 없게 되어 섬유의 상품성이 떨어진다.If the gelatin powder is used in excess of this ratio, the spreading of the coating mixture may not be smooth when the natural fiber is coated. On the contrary, when the gelatin powder is used in the above ratio, the coating material is not bonded to the fiber and thus the coating effect may not be obtained. Poor commercial property of the fiber.

본 발명은 상기 젤라틴을 천연섬유의 코팅 원료로서 사용하기 위해 바인더로 오일을 사용하며, 특히 글리세린을 10-60 중량% 혼합 사용한다. The present invention uses oil as a binder to use the gelatin as a coating material of natural fibers, in particular 10-60% by weight of glycerin.

글리세린을 10 중량% 이하로 사용하게 되면 천연섬유의 코팅시 코팅 혼합물의 유동성이 원활하지 못하며, 60 중량%를 초과하여 사용하면 섬유에 대한 코팅재의 결합성이 떨어져 섬유의 상품성이 떨어진다.When glycerin is used in an amount less than 10% by weight, the fluidity of the coating mixture may not be smooth when the natural fiber is coated, and when it is used in excess of 60% by weight, the binding property of the coating material to the fiber may be reduced, thereby decreasing the commerciality of the fiber.

또한 본 발명은 1 중량% 미만의 효소를 첨가하는데, 상기 사용된 동물성 단백질에 대응하여 젤라틴 분해효소를 사용하는 것이 바람직하다.In addition, the present invention adds less than 1% by weight of enzyme, it is preferred to use gelatin degrading enzyme corresponding to the animal protein used.

상기한 바와 같이 젤라틴과 글리세린 및 물의 혼합 용액에 효소를 첨가하여 교반 혼합한 다음에는, 염료, 금 분말 또는 홀로그램 염료를 1-15 중량% 첨가하는데, 여기서의 염료는 생분해 가능한 것으로 식품첨가용 염료를 사용하는 것이 바람직하다. As described above, the enzyme is added to the mixed solution of gelatin, glycerin, and water, followed by stirring and mixing. Then, 1-15% by weight of a dye, a gold powder, or a hologram dye is added. The dye is biodegradable. It is preferable to use.

상기 금 분말 또는 홀로그램 염료는 천연섬유에 고급스러운 질감을 부여하거나 향상시키기 위하여 사용한다.The gold powder or hologram dye is used to impart or enhance the luxurious texture of natural fibers.

이렇게 해서 얻어진 혼합물은 이를 섬유에 직접 적용하기 전에 코팅기에 공 급하여 전사용 종이 위로 롤러 코팅 또는 나이프 코팅한다.The mixture thus obtained is fed to a coater and roller coated or knife coated onto the transfer paper prior to applying it directly to the fibers.

그 다음 일정한 무늬나 문자, 이미지 등을 음양각한 금형 위에 천염섬유를 공급하면서 상기 코팅된 전사 종이를 75-90℃의 온도로 필름식 열접착 도포한다. Then, the coated transfer paper is thermally coated at a temperature of 75-90 ° C. while supplying fabric fibers onto a mold in which a predetermined pattern, letter, image, etc. are embossed.

이렇게 하여 코팅된 천연섬유는 그 코팅 염료 자체가 생분해 가능한 천연 재질로 이루어지므로 천연섬유의 자연스럽고 고급스러운 재질감이 더욱 향상되며, 섬유제품 사용 후 폐기시에 자연에서 생분해되므로 환경 오염을 일으킬 우려가 전혀 없게 된다.In this way, the coated natural fiber is made of a biodegradable natural material, so that the natural and luxurious texture of the natural fiber is further improved.Therefore, there is no concern about environmental pollution since it is biodegraded in nature when discarded after using the fiber product. There will be no.

이하 본 발명을 아래의 실시예를 통하여 보다 구체적으로 살펴보겠으며, 본 발명의 권리범위가 이에 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to the following examples, which are not intended to limit the scope of the present invention.

[실시예]EXAMPLE

젤라틴 분말 3 ㎏을 물 10 kg에 용해시켜 젤라틴 용액을 준비하였다.3 kg of gelatin powder was dissolved in 10 kg of water to prepare a gelatin solution.

그 다음 상기 젤라틴 용액에 글리세린 3 kg을 첨가하여 혼합한 후 젤라틴 분해효소 100 g을 첨가하여 교반 혼합하였다.Then, 3 kg of glycerin was added to the gelatin solution, followed by mixing. Then, 100 g of gelatin degrading enzyme was added thereto, followed by stirring and mixing.

그 다음, 미세한 금 분말을 0.8 kg 첨가하여 균일하게 혼합하였다.Then, 0.8 kg of fine gold powder was added and mixed uniformly.

이렇게 얻어진 혼합 용액을 코팅기에 넣고, 판박이 종이를 공급하면서 상기 혼합 용액으로 롤러 코팅 및 나이프 코팅하였다.The mixed solution thus obtained was placed in a coater and roller coated and knife coated with the mixed solution while feeding sheet paper.

그 결과 금박 분말이 고르게 분포된 고급스런 외관의 전사 용지가 얻어졌다.As a result, a transfer paper having an elegant appearance with evenly distributed gold leaf powder was obtained.

이 전사 용지를 원하는 무늬와 모양을 음양각한 금형 위에 놓고, 천염섬유로서 삼베를 금형 위로 공급하면서 약 80℃의 온도로 열접착 도포하였다. The transfer paper was placed on a mold embossed with a desired pattern and shape, and heat-bonded at a temperature of about 80 DEG C while feeding burlap over the mold as a cloth fiber.

그 결과, 원하는 무늬와 모양이 코팅된 삼베가 얻어졌으며, 이는 천연재질로 코팅되었기 때문에 착용감이나 재질감이 우수하고, 사용 후 폐기될 경우 생분해될 수 있다.As a result, burlap coated with the desired pattern and shape was obtained, which is coated with a natural material, which is excellent in fit or texture, and may be biodegraded when discarded after use.

본 발명에 의하면, 천연섬유의 코팅을 위해 종래 기술에서 사용되던 화학 바인더 대신 순수 동물성 단백질을 주원료로 이용함으로써, 생분해 가능한 천연섬유의 코팅방법을 제공할 수 있게 된다.According to the present invention, by using pure animal protein as a main raw material instead of the chemical binder used in the prior art for coating the natural fiber, it is possible to provide a coating method of biodegradable natural fiber.

또한 본 발명에 의하면, 동물성 단백질로서 젤라틴을 사용하고, 글리세린과 수분, 극소량의 효소를 사용하여 천연섬유를 코팅함으로써, 사용 후 폐기시 자연에서 생분해되어 환경 오염을 일으킬 염려가 전혀 없게 되며, 인체에도 무해한 천연섬유의 코팅방법을 제공하는 효과를 얻을 수 있다.In addition, according to the present invention, by using gelatin as an animal protein and coating natural fibers using glycerin, water and a very small amount of enzyme, there is no fear of biodegradation in nature when it is disposed of after use and causing environmental pollution, The effect of providing a coating method of harmless natural fibers can be obtained.

Claims (3)

동물성 단백질로서 젤라틴 10-30 중량%, 글리세린 10-60 중량% 및 물 30-60 중량%의 혼합물에 1 중량% 미만의 효소를 첨가하여 교반 혼합한 후, 염료, 금 분말 또는 홀로그램 염료를 1-15 중량% 첨가하고, 이 혼합물을 코팅기에 넣고 전사용 종이를 공급하면서 상기 혼합물로 롤러 코팅 또는 나이프 코팅하고, 일정한 무늬, 문자 또는 이들 모두를 음양각한 금형 위에 천염섬유를 공급하면서 상기 코팅된 전사 종이를 75-90℃의 온도로 상기 천연섬유 위로 열접착 도포하는 것으로 구성되는 생분해 가능한 천연섬유의 코팅방법.Less than 1% by weight of enzyme is added to a mixture of 10-30% by weight gelatin, 10-60% by weight glycerin and 30-60% by weight water as an animal protein, followed by stirring and mixing of the dye, gold powder or hologram dye. 15 wt% was added, the mixture was placed in a coater and fed with a transfer paper, roller coated or knife coated with the mixture, and the coated transfer paper was fed with regular cloth, letters, or both, on top of the embossed mold. The method of coating a biodegradable natural fiber consisting of thermally adhesive coating on the natural fiber at a temperature of 75-90 ℃. 청구항 1에 있어서, 상기 젤라틴 분말과 상기 물의 혼합 비율은 중량비로 3:7 인 것을 특징으로 하는 생분해 가능한 천염섬유의 코팅방법.The method of claim 1, wherein the mixing ratio of the gelatin powder and the water is 3: 7 by weight ratio. 청구항 1에 있어서, 상기 효소는 젤라틴 분해효소인 것을 특징으로 하는 생분해 가능한 천연섬유의 코팅방법.The method of claim 1, wherein the enzyme is gelatin degrading enzyme.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000036694A (en) * 2000-03-25 2000-07-05 임한진 Development of biodegradable materials using the Gelatin
KR20000058539A (en) * 2000-06-07 2000-10-05 전동철 The manufacturing method of fabrics with printed patterns on one side and coated by adhesive on the other side to adhere to a single sheet or liquid ground
KR20010082404A (en) * 2001-05-10 2001-08-30 홍순식 Relief patterned paper made by hand-painting methodology and relief pattern forming method using the paper
KR20040106327A (en) * 2002-04-30 2004-12-17 하이드로머 인코포레이티드 Coating composition for multiple hydrophilic applications
US6902779B1 (en) 1998-07-29 2005-06-07 W. A. Sanders Papierfabriek Coldenhove B.V. Transfer paper for ink-jet printing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6902779B1 (en) 1998-07-29 2005-06-07 W. A. Sanders Papierfabriek Coldenhove B.V. Transfer paper for ink-jet printing
KR20000036694A (en) * 2000-03-25 2000-07-05 임한진 Development of biodegradable materials using the Gelatin
KR20000058539A (en) * 2000-06-07 2000-10-05 전동철 The manufacturing method of fabrics with printed patterns on one side and coated by adhesive on the other side to adhere to a single sheet or liquid ground
KR20010082404A (en) * 2001-05-10 2001-08-30 홍순식 Relief patterned paper made by hand-painting methodology and relief pattern forming method using the paper
KR20040106327A (en) * 2002-04-30 2004-12-17 하이드로머 인코포레이티드 Coating composition for multiple hydrophilic applications

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