• 한국염색가공학회지
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• 제34권1호
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• pp.1-9
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• 2022

The durable FR treatments such Pyrovatex and Proban have been used for cotton fibers, while the finishes involve toxic ammonia or formaldehyde release during finishing process or finished products. In this study, ecofriendly flame-retardant treatment of cotton fabrics was carried out using UV-curable formulations of Vinyl bisphosphonic acid (VBPA), Acrylaminide and Triacryloylhexahydro-1,3,5-triazine, as a monomer, a comonomer and a cross-linking agent respectively, which can introduce a cross-linked copolymer networks. With an optimal finish formulation, the flame retardancy of LOI 29.8 was maintained even after 10 laundering cycles. In TGA analysis, the DTGA peak decreased from 389℃ to 252℃ and the amount of char yield increased from 6.1% to 46.1% compared to the untreated cotton. In addition, MCC analysis showed that Peak HR and THR decreased by 59.4% and 69.2% respectively, compared to the untreated cotton. The pyrolysis and combustion behaviors of the FR-treated cotton implied a condensed-phase flame-retarding mechanism.

• 대한화장품학회지
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• 제28권1호
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• pp.202-213
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• 2002

There have been a lot of research going on for developing a new blend of cosmetic ingredients. such as Porous sphere power, High functional composition power, Ultrafine power, UV sunscreen agent, Flat titanium dioxide etc. It's said that these ingredients will have multi functional effects on foundation users. Regarding foundation products. UV care effect is basic and consumers want special feelings for skin and its'transparency. People also look for a high performance foundation which helps skin stay shineless and flawless with a longlasting beautiful finish. A lot of cosmetics are produced in small quantities resulting in a greater variety depending on consumers'ages, hobbies, trends, season and environment, so more specific cosmetics should be developed. To satisfy more specific clientele, It is expected that special care product will come out. Foundations for the elderly and men are already being considered as well as ones for trans-genders are possibility. It's considered that fecundation is not a makeup but something in skin-care categories based on the development and production of high performonce foundations.

• 한국염색가공학회지
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• 제33권2호
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• pp.64-71
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• 2021

Large amount of formaldehyde could be released inevitably during the flame-retardant (FR) treatments or from the finished fabrics using Provatex reagent and Proban polymers which have been used as durable FRs for cotton. A water-soluble cyclophosphazene derivative was synthesized as an ecofriendly phosphorus-based FR for cotton fibers. Dichloro tetrakis{N-[3-(Dimethylamino)propyl]methacrylamido} cyclcophosphazene (DCTDCP) was synthesized through the substiutution reaction of Hexachloro cyclophosphazene and N-[3-(Dimethylamino)propyl] methacrylamide at a mole ratio of 1 : 4, which can be cured dually by both alkaline treatment and UV irradiation. More crosslinked networks were produced through the addition of Triacryloyl hexahydrotriazine and Acrylamide as a UV-curable crosslinker and a comonomer respectively. Both flame retardancy and washing durability of the FR cotton were improved synergistically. The durability improvement may be caused by the covalent bond formation of the FR with cellulose and the high degree of polymerization of DCTDCP, which can be verified by the pyrolysis and combustion behaviors analyzed by LOI, TGA, and microcalorimeter.

• 한국염색가공학회지
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• 제34권4호
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• pp.217-223
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• 2022

Flame-retardant finished silk fabrics could release carcinogenic formaldehyde resulting from the conventional finishing agents. New water-soluble cyclophosphazene derivative can be used as a formaldehyde-free flame retardant for the silk protein. Dichloro tetrakis{N-[3-dimethylamino)propyl]methacrylamido}cyclophosphazene(DCTDCP) can be cured by heat or UV irradiation as a durable flame retardant for the silk fabrics. Treatment conditions were optimized including curing temperature and time, finishing formulations, and UV energy. At the 30% DCTDCP application, peak HRR and THR decreased by 42.6% and 49.6% respectively compared to the pristine silk fabrics. Also char residue increased up to 48% from 11% indicating solid-phase retarding mechanism. The flame-retardant silk fabrics showed a LOI of 31.1 and the washed sample maintained a LOI of 26.8 even after ten laundering cycles.

• 한국염색가공학회지
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• 제9권2호
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• pp.57-76
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• 1997

근년, 과학기술의 발달과 더불어 공업 생산력이 비약적으로 약진해서, 섬유제품이 풍부하게 생산$.$시판되게 되었다. 현대인은, 기능성을 중시한 제품에서, 여유성과 안락감각을 갖춘 제품, 게다가 위생적이고 건강성을 구비한 제품 쪽으로 소비자의 욕구가 변하여, 일상생활 환경의 청결성과 쾌적성을 추구하게 되었다. 특히, 현대의 젊은이들은 이러한 유행을 민감하게 받아들이고 있다. 의복의 쾌적성을 추구한 가공에는, 이 글에서 기술코져하는 항균방취가공을 위시해서, 소취가공, 방충가공, UV 제어가공, 대전방지가공 등이 있다. 이러한 제품들은 어느 것이나 섬유제품의 차별화와 고가화를 꾀한 가공이다. 대다수의 섬유관련기업은, 이러한 시대적인 흐름에 재빨리 착안해서, 섬유제품에서의 미생물의 증식을 억제하고, 악취발생을 방지하는 항균방취가공섬유제품의 연구개발과 용도확대에 힘을 쏟고 있다.

• 한국염색가공학회지
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• 제21권1호
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• pp.38-45
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• 2009

First of all, the properties imparted to PET fabrics are resistance to and recovery from creasing or wrinkling when wet or dry; high resistance to stretch in the filament yarns but not in the staple; high abrasion resistance; good texture and appearance; resistance to heat ageing; good chemical resistance and good resistance, behind glass, to sunlight. But, the low moisture regain of PET fabric conduces to static troubles in textile processing. Furthermore, garments made from PET may, during wear, develop electric charges which attract to the fabric particles of soil(dirt, swarf, dust) flying in the air, so that the cuffs of shirts, for example, become soiled quickly and are not easily laundered clean. The sericin constitutes 25$\sim$30％ of silk protein and surrounds the fibroin fiber with sticky layer that supports the formation of a cocoon. The useful biochemical properties of sericin protein are oxidation resistant, antibacterial, UV resistant, hydrophilic property, and good affinity with hydrophobic material. These properties can be used as an improving reagent or a coating agent for natural and synthetic fibers, fabrics, and other intermediate products. The sericin is also applied to cross-link, and can be blended with other materials. In this study, we modified the surface of PET fabric by mixture of sericin finishing agent; sericin, polyuretane binder and 1,2,3,4-butanetetracarboxylic acid (BTCA) cross-link agent. Also, we investigated the finshing effect; moisture regain, stiffness, handle, drape and electrostatic. The moisture regain of PET fabric treated with sericin finishing agent was higher than that of untreated PET fabric. As a result of evaluating influence about handle of PET fabrics treated with sericin finishing agent, it was confirmed that the sericin finishing agent could be use as a linen like finishing agent.

• KIEAE Journal
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• 제6권3호
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• pp.49-56
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• 2006

The roof among the outer surfaces of buildings is an optimum place to install PV since it is the best favorable part in the building to be exposed to day light. Especially, in case of module of BIPV for Roof, it should have essentially the functions of both electricity generation and roof-finish as a construction material. The followings are the results of the study which has analyzed the architectural conditions and applications thereof at the job site. -The aesthetic function of BIPV module is very important because the roof, mostly located at the top of the buildings, is easily recognized and affects outer interior design of the building a lot. -The heat proof of BIPV for Roof could affect the energy consumption through the roof having a wide area. -For architectural condition to the weather, the roof has to ensure the stability of the weather, humidity proof, and airtightness to the wind respectively. -For architectural condition of the structure, endurance by physical power such as stability of both combining and fixing and transfer of load should be ensured. -For residents protection, it has also architectural functions to secure for the space and shield ozone, UV and noxious substances. -Through its practical applications, It is already confirmed that there are various types of BIPV modules overseas and its application has been proved successfully.

• 한국염색가공학회지
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• 제33권4호
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• pp.230-237
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• 2021

The flame-retardant (FR) treatments of wool fibers using Hexafluorozirconate/titanate salts and tetrabromophthalic anhydride can cause skin irritation and gas toxicity due to Zr and Br compounds respectively. A water-soluble polyfunctional cyclophosphazene derivative, synthesized through substitution reaction of Hexachloro cyclophosphazene and N-[3-(Dimethylamino)propyl] metacrylamide, was applied as a durable flame-retardant for wool fabrics. Also, a crosslinked structure was introduced to improve washing durability of the FR-wool, up to 10 laundering cycles, using Acrylamide(AAm) and Triacryloylhexahydrotriazine (TAHT) as a comonomer and a crosslinker respectively. The mole ratios of the TAHT and AAm concentrations compared to the Dichloro tetrakis{N-[3-(Dimethylamino)propyl]methacrylamido} cyclcophosphazene (DCTDCP) were optimized to 1.33 and 7.5 respectively. In addition, the pyrolysis and combustion properties of the FR wool were assessed using LOI, TGA and microcalorimetry suggesting a solid-phase FR mechanism.

• 한국환경보건학회지
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• 제44권4호
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• pp.340-347
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• 2018

Objectives: This study was performed to determine environmental hazard factors and provide more eco-friendly child activity spaces within children's playgrounds installed in Gyeonggi-do Province. Methods: Basic (XRF) and precise (ICP, UV) inspections were conducted. The test items examined were heavy metals and parasite eggs. As a sampling point, painted finish materials (180), synthetic rubber (50), and sand (50) were selected. Results: The total excess rate of heavy metals in the XRF was found to be 7.4% (17/230 points). In a comparison between the basic and precise inspections with 17 excess points, the concentration deviation between the two tests was found to be from 0.01 to 7.7 times, resulting in a large difference. Furthermore, all the excess samples were dual samples. However, the contribution rates of Pb and $Cr^{6+}$ to combined concentration were found to be 85.1 and 14.9% for basic inspection and 91.9 and 8.1% for precise inspections, so there is a similar tendency between the two tests. The excess rate of parasite eggs in sand was expressed at 6%. The excess rate of heavy metals in synthetic rubber was found to be 0%. Conclusion: The reliability of the XRF is low. However, considering the contribution rate of Pb and $Cr^{6+}$ between the two tests, it is likely to be applicable for screening. Dual samples provided high concentrations and excess samples and care should be taken when managing them.