• Title/Summary/Keyword: crease recovery

Search Result 65, Processing Time 0.023 seconds

Water and Oil Repellency of Wool Fabric Treated with Nano-type Finishing Agent (Wool 직물의 나노 발수 발유가공)

  • Choi, Bo-Ryun;Han, Sam-Sook;Lee, Mun-Cheul
    • Textile Coloration and Finishing
    • /
    • v.20 no.6
    • /
    • pp.26-34
    • /
    • 2008
  • Wool fabric having high moisture content were treated with fluorocarbon-based water and oil repellent finishing agents by pad-dry-cure system. Three types of finishing agents which were regular-type or nano-type were adapted to compare the surface chemical composition, water and oil repellent property, crease recovery angle, and durability to repeated laundering. From the surface chemical compositions resulted by ESCA and C1s curve-fitting, it was shown that the regular-type finishing agent were easily taken off from the finished wool fabrics after repeated laundering. On the other hand, the fluoroalkyl groups of nano-type finishing agents turned round from fabric surface to fiber internal after repeated laundering. The water repellency of the wool fabrics treated with regular-type agent had a little changes according to the treatment condition changes and sharply decreased with repeated laundering. However, these values when treated with nano-type agents increased with the concentration and cure temperature and were maintained after 20 times laundering. The wool fabrics treated with nano-type agent had a great oil repellency irrespective of treatment conditions. Furthermore, the wrinkle recovery values of the wool fabrics treated with nano-type agents were higher than those of the fabrics treated with regular-type agent and were unchanged after 20 times laundering.

Effect of Vitamin E Treatments on The Humoral and Cellular Immune Responses in Mice. - Animal experiment for nursing care of vitamin E-deficient patients- (비타민 E 투여가 마우스의 체액성 및 세포성 면역반응에 미치는 영향 -비타민 E 결핍환자의 간호중재 개발을 위한 동물실험 -)

  • 김금재
    • Journal of Korean Academy of Nursing
    • /
    • v.23 no.4
    • /
    • pp.528-543
    • /
    • 1993
  • Vitamin E, which has its advocates in the treatment of diabetes mellitus. autoimmune disease, cancer and peripheral vascular and thromboembolic disease, has now been alleged to have a powerful antioxident effect and to affect various biological activities such as fertility factor, inhibition of human platelet aggregation and stabilization of biological membranes. The present study was designed to test whether vitamin I(alpha-tocopherol) can : (1) enhance the hemagglutinin response to sheep red blood cells (SRBC), (2) modulate Arthus and delayed type hypersensitivity(DTH) to SRBC and contact hypersensitivity to dinitrofluorobenzene (DNFB). (3) enhance the mitogenic response of murine splenocyte, (4) decrease the recovery of Cryptococcus neoformans from brain, lung, liver, spleen and kidney of infected mice and (5) have an inhibitory or enhancing effect on the induction of active systemic anaphylaxis(ASA) induced by chicken-gamma globulin (CGG) in mice. Mice were given either intramuscular injections of 0.3ml (300mg) of vitamin I before immunization or were infection for 10 consecutive days or were given by vitamin I esophageal intubation, 0.1ml(100mg), for 20 days before sacrifice for the mitogenic response experiments. It was found that vitamin E treated mice showed a significant enhancement in hemagglutinin response, Arthus reaction and DTH to SRBC and contact hypersensitivity to DNFB. There was no significant difference in the mitogenic response to phytohemagglutinin(PHA), but the response to concanavalin A(ConA) or pokeweed mitogem(PWM) was increased in vitamin E-treated mice. Interestingly, the vitamin E administration before C. neoformans infection decreased significantly the recovery of C. neoformans from brain lung, liver, spleen and kidney of the infected mice as compared with that of the control mice, strongly suggesting that vitamin E pretreatment may increase the resistance of mice to the fungal infection. Unexpectedly, vitamin E administration enhanced the production of CGG -induced ASA. Taken together, it can be concluded that vitamin I administration may in-crease the humoral and cellular immune response and resistance. to C. neoformans infection, but enhance the induction of ASA to CGG. Further studies are necessary to clarify the underlying mechanism accounting for these effects.

  • PDF

Emulsion Graft Copolymerization of Methyl Methacrylate onto Cotton Fiber (면섬유에 대한 Methyl Methacrylate의 유화 그라프트 중합)

  • Bae Hyun-Sook;Ryu Hyo-Seon;Kim Sung-Reon
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.15 no.3 s.39
    • /
    • pp.271-280
    • /
    • 1991
  • Emulsion graft copolymerization of MMA onto cotton fiber using Ce(IV) salt as an initiator was carried out. Graft yield and graft efficiency were observed according to the kinds and concentrations of emulsifier and polymerization conditions. The physical properties of MMA grafted cotton fabric were investigated. The results of this study were as follows: 1. The heighest graft yield of emulsion graft polymerization occurred at the concentration below cmc of emulsifier, which was different from emulsion polymerization. Nonionic sur- factant as an emulsifier was more effective than anionic one. 2. The highest graft yield was obtained at the initiator concentration $1{\times}10^{-2}mol/l$. The viscometric molecular weight of PMMA was in the order of 106. 3. As reaction time increased, the graft yield increased but the graft efficiency decreased. 4. Elevation of reaction temperature resulted in increase of graft yield. The apparent activation energy of MMA graft polymerization was 4.72 Kcal/mol. 5. Physical properties of MMA grafted cotton fabric varied with increase of grafting. Thickness and stiffness showed a noticeable increase, whereas tensile strength and elongation was slightly increased. Crease recovery increased as the graft yield increase up to $50\%$ and decreased thereafter.

  • PDF

A Study on the Preparation of Durable Softening Water Repellent by Blending Acrylic Copolymer and Fatty Carbamide;Water Repelling Finish of PET Fabrics (아크릴 공중합체와 지방산 카르바미드의 블렌딩에 의한 내구유연발수제의 제조에 관한 연구;V. PET 직물에의 발수가공)

  • Im, Wan-Bin;Kim, Seong-Kil;Park, Hong-Soo
    • Journal of the Korean Applied Science and Technology
    • /
    • v.13 no.3
    • /
    • pp.137-144
    • /
    • 1996
  • Durable softening water repellents such as PODCW, PDDCW, and PEDCW were prepared by blending cationized polymers, fatty carbamide, waxes, and emulsifiers. The cationized polymers included poly (octadecyl methacrylate-co-2-diethylaminoethyl methacrylate) [PODC], poly (n-dodecyl methacrylate-co-2-diethylaminoethyl methacrylate) [PDDC]and poly (2-ethylhexyl methacrylate-co-2-diethylaminoethyl methacrylate) [PEDC]. After the PET fabrics were treated with these water repellents, water repellency, softness, and durability of the PET fabrics were examined by various methods : water repellency by the hydrostatic pressure and the contact angle methods, softness by crease recovery and tearing strength, and durability by washability, respectively. Rating of water repellency of PET fabrics treated with PODCW was $80^{+}$, but those treated with PDDCW and PEDCW were not high enough to be used in industry.

Preparation and Optimization of Silicone Softener for PP Finish (PP가공용 실리콘 유연제의 제조 및 유연최적화)

  • You, Hyuk-Jae;Chung, Dong-Jin;Jung, Choong-Ho;Kim, Myung-Soo;Hahm, Hyun-Sik;Park, Hong-Soo;Kim, Tae-Ok
    • Journal of the Korean Applied Science and Technology
    • /
    • v.21 no.3
    • /
    • pp.191-196
    • /
    • 2004
  • An emulsion of octadecamidoethylaminoethyl dodecate (which provides softness) and an emulsion silicone oil KF-96 (which provides lubricity) were separately synthesized. Then PP finishing softeners (SSA-7) was prepared by blending of the synthesized emulsions with beef tallow hardened oil (a softness improving agent). PP finishing treatment was carried out with the prepared SSA-7 and PP finishing resin by a one bath method, and several physical properties were tested. As a result, crease recovery, tear strength, softness, lubricity, and bending resistance were all good, indicating that the prepared SSA-7 is a good PP finishing softener.

Mild Ptosis Correction with the Stitch Method During Incisional Double Fold Formation

  • Lee, Edward Ilho;Ahn, Tae Joo
    • Archives of Plastic Surgery
    • /
    • v.41 no.1
    • /
    • pp.71-76
    • /
    • 2014
  • Background Numerous methods exist for simultaneous correction of mild blepharoptosis during double eyelid surgery. These methods are generally categorized into either incisional (open) or non-incisional (suture) methods. The incisional method is commonly used for the creation of the double eyelid crease in patients with excessive or thick skin. However, concurrent open ptosis correction is often marred by the lengthy period of intraoperative adjustment, causing more swelling, a longer recovery time, and an increased risk of postoperative complications. Methods The authors have devised a new, minimally invasive technique to alleviate mild ptosis during incisional double eyelid surgery. The anterior lamella is approached through the incisional technique for the creation of a double eyelid while the posterior lamella, including Muller's and levator muscles, is approached with the suture method for Muller's plication and ptosis correction. Results The procedure described was utilized in 28 patients from June 2012 to August 2012. Postoperative asymmetry was noted in one patient who had severe preoperative conjunctival scarring. Otherwise, ptosis was corrected as planned in the rest of the cases and all of the patients were satisfied with their postoperative appearance and experienced no complications. Conclusions Our hybrid technique combines the benefits of both the incisional and suture methods, allowing for a predictable and easily reproducible correction of blepharoptosis with an aesthetically pleasing double eyelid.

The Effect of Fusible Interlining on the Appearance related Properties & Mechanical Characteristics for the Lyocell Fabric(Part I) (리오셀직물의 심지접착에 따른 외관적 성능 및 역학적 특성(제1보))

  • 김인영;송화순
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.25 no.7
    • /
    • pp.1193-1202
    • /
    • 2001
  • The goal of this research is to investigate the effect of fusible interlinings on the mechanical characteristics and appearance related values for the Lyocell fabrics. In this study, to establish optimum fusing conditions, peel strength of the fused fabrics depending on the fusing temperature, pressure and time was measured. Appearance related properties and mechanical characteristics of the fused fabrics ere determined. The reulst are as follows: In the fusing condition of $120^{\circ}C,\;3kgf/textrm{cm}^2$, 15sec, peel strength was excellent. Peel strength was excellent in the case of tencel/cotton fabric, with increasing cover factor of woven interlining, with twill and nonwoven interlining. Flex stiffness was increased in the case of tencel/cotton fabric, with increasing weight of woven interlining, with twill and nonwoven interlining. Drapability was excellent in the case of 100% tencel fabric, with decreasing weight of woven interlining, with plain and woven interlining. Crease recovery was excellent in the case of 100% tencel fabric, with increasing weight of woven interlining, with twill and woven interlining. Shear and bend properties were increased in the case of tencel/cotton fabric, with increasing weight of woven interlining, with plain and nonwoven interlining.

  • PDF

A Study on the Preparation of Durable Softening Water Repellents by Blends of Fatty Carbamide/Wax/Acrylic Copolymer(IV);Water Repelling Treatment of P/C Blended Fabrics (지방산 카르바미드/왁스/아크릴 공중합체의 블렌드에 의한 내구유연발수제의 제조에 관한 연구 (IV);P/C 혼방직물에의 발수처리)

  • Park, Hong-Soo;Bae, Jang-Soon
    • Journal of the Korean Applied Science and Technology
    • /
    • v.12 no.2
    • /
    • pp.51-58
    • /
    • 1995
  • To prepare a durable softening water repellent, quaternized octadecyl methacrylate-2-diethyl-aminoethyl methacrylate as a mother resin and quaternized 1, 3-dioctadecyl-2, 7-dioxy-6, 8-di(2-hydroxyethyl)-1, 3, 6, 8-tetraazacyclodecane which increase the softening effect and the hydrostatic pressure blended with waxes and their emulsifier in various proportions to give water repellent PADWC. As the results of the measurement of water repellency, washable, tear strength and crease recovery to polyestercotton(P/C) blended fabrics treated with PADWC only or addition of textile finishing resin, the physical properties were increased. There was no significant lowering effect in water repellency when PADWC was treated the antistatic agent by the one-bath method, and the effect of water repellency by the adding the catalyst was studied. PADWC was confirmed as durable water repellent with the results of making little difference of water repellency as ${\pm}5$ point after and before washing.

Synthesis of Silicone Softner for Permanent Press Finish and Its Characterization (Permanent Press 가공용 실리콘 유연제의 합성과 그의 특성화)

  • Park, Chang-Hwan;Kim, Seung-Jin;Kim, Young-Geun;Park, Hong-Soo
    • Journal of the Korean Applied Science and Technology
    • /
    • v.12 no.1
    • /
    • pp.29-34
    • /
    • 1995
  • Silicone softner(SSN-3) for permanent press(PP) finish was prepared by blending beef tallow hardened oil for Improving softness, water, the emulsion, which was synthesized from pentaerythritol monostearate as a softening component and silicone oil KF-96 as a lubricating component. The prepared SSN-3 and the PP finishing resin were applied to PP finishing cotton broad cloth and P/C gingham samples using one bath method. The properties such as crease recovery, tear strength, bending resistance test were tested. The samples treated with SSN-3 and PP finishing resin have improved properties, compared with nontreated samples, those treated only with PP finishing resin, those treated with commercial PP finishing softners and PP finishing resin. Also from the bending resistance test, the two kinds of fabric samples treated with SSN-3 of 3% showed grade 5 and these were good enough in feeling.

Studies on the Scouring Effects of Scouring Soap Made from Rapeseed Oil (유채유로 만든 견정련비누의 정련)

  • 배도규;배현석
    • Journal of Sericultural and Entomological Science
    • /
    • v.35 no.1
    • /
    • pp.43-47
    • /
    • 1993
  • Using the new scouring soap made from rapeseed oil, various scouring test was done souring effects of new scouring soap were estimated. In the effects of scouring soap on the degumming ratio, OS (the soap made from oleic acid) was the most excellent and the next was RS (the soap made from rapeseed oil). Both OS and RS were more excellent than MS (the soap on the market). In a buffer power of soap solution, OS and RS were good, but MS was poor. The uneven dyeing was not observed in the silk fabric degummed by OS and RS, but observed in silk fabric degummed by MS. The value of tenacity and elongation in the silk degummed by OS and RS was higher that degummed by MS. In the crease recovery, softness and whiteness, the order of value was OS, RS, MS.

  • PDF