• Journal of the Korean Society of Clothing and Textiles
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• v.27 no.7
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• pp.778-788
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• 2003

This study aimed to review the influence of the World War I & II on the beauty culture which include toilette practices, cosmetic products and health habits. Literary materials were gathered and analyzed from books, journals and thesis concerning cosmetics, fashion and background history. Results are as follows: 1. Women's appearance gained social and official approval of its psychological and practical effect during the two wars and was regarded as an important strategy for the war. 2. The chemical industry helped to set forth an aggressive make up industry. 3. The orthopedic technique,1 of the war period resulted in the advancement of the plastic surgery business in the after war world. 4. After the First World War, the newly-risen American bourgeoisies' desire to show off their leisure activities provided from their wealth popularized suntan fast. 5. Strong, vital womanly beauty had been demanded in accordance with women's positive social Participation during the Second World War.

• Transactions of Materials Processing
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• v.10 no.5
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• pp.402-410
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• 2001

The gas-assisted injection molding process is often perceived to be unpredictable, because of the extreme sensitivity of the gas. Since a slight change in design or process parameters can significantly change the resulting gas penetration, few designers and molders have the level of experience with the new gas-assisted injection molding process required for the development of new parts. This paper is concerned with the unified molding for a thick cosmetic chest by using gas-assisted injection molding. CAE analysis was carried out to design the part and the gas channel without inducing sink marks. And based on the part weight measurement, the processing parameters to control gas penetration percentage were chosen through the method of design of experiments. A thick cosmetic chest was successfully produced using the gas assist technology. The sink mark issue associated with the conventional injection molded parts was resolved. Weight savings and cycle-time reduction were also achieved.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.22 no.2
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• pp.89-98
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• 1996

A novel polymeric sunscreen agent was developed. It was prepared by the coupling reaction of 2-ethylhexyl 4-hydroxycinnamate with poly vinylbenzyl chloride(PVBC, average MW 6,500). In this reaction the reactivity was mostly affected by catalyst. In the absence of catalyst the yield was approximately 55% and in the presence of tetrabutylammonium bromide the yield was about 65%, but in the presence of tetrabutylammonium iodide the yield was 100% to give a average molecular weight 20,000 polymeric sunscreen agent. There were no side reactions, and its structure and purity were confirmed by various analytical methods, such as NMR, IR, and so on. UV radiation absorption efficiency is more than 70% compared with that of octyl methoxycinnamate. The solubility in polar oil, for example C12-15 alkylbenzoate and caprylic/capric triglyceride, is more than 50%. It showed high stability in the time course of test including acceleration test. This polymer is safe to skin because of poor permeability to skin, no side products in the process of preparing, and easy elimination of excess starting materials.

• Journal of Integrative Natural Science
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• v.7 no.2
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• pp.130-137
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• 2014

Resins were synthesized by mixing N-phenylaza-15-crown-5 macrocyclic ligand attached to styrene (2th petroleum in 4th class hazardous materials) divinylbenzene (DVB) copolymer with crosslink of 1%, 2%, 6%, and 12% by substitution reaction. The synthesis of these resins was confirmed by content of chlorine, element analysis, thermo gravimetric analysis (TGA), surface area, and IR-spectroscopy. The effects of pH, equilibrium arrival time, dielectric constant of solvent and crosslink on adsorption of metal ions by the synthetic resin adsorbent were investigated. The metal ions were showed fast adsorption on the resins above pH 4. The optimum equilibrium time for adsorption of metallic ions was about two hours. The adsorption selectivity determined in ethanol was in increasing order uranium (VI) > zinc (II) > europium (III) ions. The uranium ion adsorbed in the order of 1%, 2%, 6%, and 12% crosslink resin and adsorption of resin decreased in proportion to the order of dielectric constant of solvents.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.31 no.1 s.49
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• pp.115-119
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• 2005

Methanol extract of plants in Jeju were investigated for biological properties related to whitening cosmeceuticals such as melanin contents on melanoma cell, mushroom tyrosinase activity inhibition. We found that extracts of leaves of Hypochoeris radicata, Solanum nigrum, Solidago serotica Gynostenmma pentaphyllum and Taxus cuspidata inhibit melanin synthesis in B16F10 melanoma cells. However they have no tyrosinase inhibitory activity.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.26 no.1
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• pp.239-260
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• 2000

The raw materials requiring new technology have been introduced to the market as highly functional cosmetics have been popularized recently. The doublesphere which is the new capsulation is thus born. The deublesphere is double-layered capsulation of which the primary film is the nanocapsulation of liposome and the secondary film is the visible capsulation. The main component of the primary film is lecithin and that of the secondary film is alginlcarrageenanslagarfcellulose. The doublesphere is characterized by that it is possible to keep active beautifying components stable and to improve the moisturizing effect, penetration power into the skin, roughness of the skin, etc. in view of its efficacy and effects since it is double-layered capsulation. The doublesphere-retinol is made in order to measure the stability, efficacy, and effects in the present study.

• Journal of Sericultural and Entomological Science
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• v.55 no.2
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• pp.44-53
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• 2019

Sericin has been removed in textile industry to improve the luster and hand of silk textile. Therefore, the sericin was considered as useless material. However, recently sericin has attracted researcher's attention since unique properties of sericin including high water retention, UV protection, and wound healing effect were reported. In spite of the useful properties of sericin as biomedical and cosmetic materials, its poor mechanical properties have restricted its industrial use in biomedical and cosmetic fields. To improve the mechanical properties, various sericins were prepared by different conditions, and the effects of the preparation condition on the structure and properties of sericin were examined. In this review paper, research trend in the structure and properties of sericin prepared with different conditions were intensively introduced.

• Korean Journal of Food Science and Technology
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• v.52 no.6
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• pp.627-631
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• 2020

High amounts of lemon seeds are discarded as by-products of processing industries. It is important to find some measures, whereby they could be used in value-added ways. Although few studies have been conducted on lemon seed oils, no study has been conducted on the nutrient content of lemon seed sprouts. The objective of this study was to investigate the nutritional value and antioxidant potential of lemon seeds and sprouts. The 1,1-diphenly-2-picrylhydrazyl radical-scavenging potential, total polyphenol, and total free amino acid content were higher in the sprouts than in the seeds. Similarly, the content of such mineral elements as Fe, Na, and Zn, increased with germination. However, salicylic acid and total mineral content were lower in the sprouts than in the seeds. The results indicate that lemon seeds and sprouts could be regarded as high-value materials in food and cosmetic industries.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.41 no.3
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• pp.237-241
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• 2015

To develop a new anti-inflammation agent for cosmetics, we investigated the anti-inflammatory activity of Fallopia sachalinensis RonseDecr. fruit extracts (FSR). FSR inhibited the pre-inflammatory cytokines ($1L-1{\beta}$, IL-6, TNF-${\alpha}$) and reduced NO production of RAW 264.7 macrophage cells in a dose-dependent manner and decreased the activity to about 51% at a concentration of $100{\mu}g/mL$. FSR suppressed not only the mRNA expression of iNOS and COX-2, but also the protein expression of iNOS and COX-2 in macrophage. The results suggested that FSR has considerable potential as a cosmetics ingredient with an anti-inflammatory effect.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.39 no.4
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• pp.289-294
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• 2013

To develop a new whitening agent for cosmetics, we investigated the inhibitory effects of biochanin A on melanogenesis. The biochanoin A is an active component in the extracts of Dalbergia odorifera T. Chen. It reduced melanin contents of B16F1 melanoma cells in a dose-dependent manner and decreased to about 48% at a concentration 10 ${\mu}g/mL$. It also inhibited the expression in microphthalmia associated transcription factor (MITF), Tyrosinase, Tyrosinase related protein 1 (Trp-1), and Tyrosinase related protein 2 (Trp-2) in melanocytes. The results suggested that biochanin A has considerable potential as a cosmetics ingredient with a whitening effect.