• The Korean Journal of Food And Nutrition
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• v.12 no.6
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• pp.592-596
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• 1999

본 연구는 피부미용전공과 비전공여대생의 모발영양지식을 파악하고 모발영양에 관한 과목을 수강한 학생들과 수강하지 않은 대상자들간의 모발상태 모발행동 등을 연구하고자 청주에 있는 피부미용과 여대생 146명과 비전공여대생 145명을 선정하여 설문지를 통해 분석하였다. 본 연구에서 얻어진 결과는 다음과 같다. 모발영양지식은 전공여대생이 비전공여대생에 비해 훨씬 높았고 모발의 진단을 받아본 경험도 전공대상자가 높았다 그러나 모발상태 손상원인 모발에 관한 걱\ulcorner은 두 그룹 모두 비슷한 양상을 보였다. 모발관리도 전공대상자가 비전공대상자 보다 많이 하고 있었고 모발손질 횟수도 전공대상자가 높은 비율로 나타났다 미용실 출입횟수는 2-3달에 한번이 가장높았고 그룹간에 차이는 없었다. 1회 머리손질 비용도 전공대상자가 비전공대상자에 비해 높은 경향이었고 샴푸의 선택기준은 두 그룹 모두 샴푸의 질과 본인 모발의 상태를 우선적으로 고려하여 선택하였다. 결론적으로 피부미용전공여대생은 모발영양과 모발 관리학 등에 관한 수업을 받았기 때문에 모발영양 지식이 많이 모발행동이 더 바람직하였고 모발상태를 양호하게 유지하였다 그러므로 모발에 관한 교육 건강한 모발을 유지하는데 기여한 것으로 나타나 적절한 모발교육 프로그램을 개발하여 비전공여대생들에게도 모발교육을 실시하는 것이 바람직하다고 사료된다.

• The Korean Journal of Food And Nutrition
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• v.12 no.6
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• pp.588-591
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• 1999

현대여성들은 모발상태에 관심이 많으나 정확한 모발분석을 해주는 곳도 드물고 자신의 모발상태에 관한 상담이나 지식을 전달받을 곳도 많지않은 실정이다. 따라서 본 연구는 1999년 10월 2일부터 -10월 6일까지 청주시내 거주하는 여학생을 대상으로 모발의 자가진단과 모발관리방법 모발에 대한 무제점 등을 파악하고 올바른 모발관리 습관을 갖는데 도움이 되고자 실시되었다. 본 연구 결과는 다음과 같다. 1. 연구대상자의 일반적 특성은 연령별 분포는 18세 -20세가 65,9% 21-30세가 30.9% 31세이상이 3,4%였다 2. 대상자들ㅇ의 모발상태는 손상모가 51.9%였으며 건강모가 21.6%로 손상모의 비율이 높았다. 3. 모발손상의 원인은 염색·탈색·퍼머의 시술이 47.1%로 가장높았고 드라이의 비율이 22.3%였다. 4. 모발이 자라는 정도는 잘 자란다가56,7%였다. 5., 현재 모발에 대한 가장 큰 관심거리는 머리결로 나타났고 헤어스타일도 높은 비중을 차지하였다. 6. 모발의 손질 횟수는 1주일에 한번이 32,3%로 가장 일반적이었고 대상자들의 33%는 모발손질을 전혀하지 않았다. 7. 모발의 손상도가 높을수록 모발관리벙법이나 횟수와 유의한 관련성이 있었다(P<0.05) 모발의 손상도가 심할수록 모발관리에 관심을 가졌고 모발관리 횟소도 많았다

• Journal of Convergence for Information Technology
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• v.11 no.3
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• pp.212-219
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• 2021

The current study aimed to find the effects of hair treatment with shea butter on bleached hair and hair protection. The agent for hair treatment with shea butter was developed in different concentration levels (0%,1%,3%,5%) for experimentation. After applying the agent to bleached hair, hair samples were evaluated as follows. Increase in hair thickness was highest in the hair sample that had 5% of shea butter. The amount of amino acids was also highest in the hair sample that contained 5% of shea butter. Comparing the difference of the surface color, hair sample with 5% of shea butter showed low level of L⁎ while the level of a⁎ value that reflects the redness was high and the level of b⁎ value that reflects yellowness was low. Observation through the scanning microscope confirmed the positive effects by showing smoother surfaces in the sample with shea butter than in the bleached hair. This study showed shea butter is considered to be cosmetics to protect damaged hair by bleaching.

• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2011.03a
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• pp.64-64
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• 2011

모발(human hair)은 양모섬유와 마찬가지로 시스틴을 많이 함유하고 있는 섬유상 케라틴 단백질로써, 두부(頭部)를 보호할 뿐만아니라 신체에 필요하지 않는 중금속을 체외로 방출하는 기능을 지닌 신체의 일부분이다. 또한 모발은 미(美)와 관련하여 가장 관심을 가지는 부분이며, 다양한 방법으로 모발에 변화를 주어 신분을 표시하거나 자신의 미적 표현을 하고 있다. 퍼머넌트 웨이브는 모발에 형태학적 변화를 주는 유효한 수단이며, 염색과 탈색 등은 색상 변화를 주는 중요한 수단이다. 본 연구 에서는 모발을 산성염료로 염색할 때 염색성을 향상시키기 위하여 염색보조제로써 벤질알콜 등을 첨가하여 염색할 때 염색된 모발의 염착량, 보습성, 단백질 유출성, 주사전자 현미경 관찰을 측정하여 다음과 같은 결과를 얻었다. 1) 염색시간이 길어지고, 염색온도가 높아질수록 모발에의 염착량은 증가하며, 특히 벤질 알콜을 첨가하여 염색하는 경우에는 빠른 시간내에 염착평형에 도달하고 비교적 낮은 염색온도에서도 높은 염착량을 나타내었다. 2) 이와같은 용매 첨가의 효과는 염액에 계면활성제와 함께 첨가하여 염색하면 나타나지 않았다. 3) 염색시간이 길어질수록 모발의 보습성은 열악해지지만, 벤질 알콜을 첨가하여 염색하는 경우에는 오히려 보습성이 증가하였다. 또한 염색시간이 길어지면 모발의 단백질 유출성은 증가하지만, 벤질 알콜을 첨가하여 염색하는 경우에는 오히려 단백질 유출성이 감소하였다. 이와같은 결과는 벤질 알콜을 첨가하여 염색하는 경우에 모발의 손상이 적다는 것을 의미한다. 4) 모발의 손상정도에 대한 주사전자현미경의 측정결과는 벤질 알콜의 첨가여부에 따라 큰 차이를 보이지 않았다.

• Applied Microscopy
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• v.38 no.3
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• pp.251-257
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• 2008

Human hair experience tensile forces during combing, bleaching and permanent dyeing processes. We have used rheometer to characterize bleached hair tensile response. Also, we investigated to morphological changes after tensile test of virgin hair and bleached hair using scanning electron microscopy. In tensile test, the tensile strength of virgin hair was $14.66g/cm^2$. They were measured as $12.95g/cm^2$, $12.61g/cm^2$ and $11.43g/cm^2$ for after the first, the second and the third trials of bleaching were done, respectively. Virgin hair had a higher tensile force than bleached hair. Tensile strength got lowered as more bleaching trials were done. In the observation of scanning electron microscopy, the fracture and lift-off of the cuticle outer layer were shown in virgin hair and bleached hair. The bleached hair were more lifted off at the outer cuticle layer than virgin hair. Consequently, chemical damage of bleaching agent caused weakening of the outer cuticle in the hair.

• Applied Microscopy
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• v.40 no.3
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• pp.163-168
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• 2010

We investigated the burning process of the virgin hair and straight permed hair using thermal analyser and scanning electron microscopy. After the thermal analysis, we found that weight started to change from $100^{\circ}C$. Whereas straight permed hair has weight decrease rate of 2.6% higher than the virgin hair till $200^{\circ}C$, those were 64.9% and 64.4% for the virgin and straight permed hairs, respectively at $300^{\circ}C$. At $400^{\circ}C$, the weight decrease rate of the virgin hair became lower than the other; they were 32.3% and 33.4% for the virgin and straight permed hairs, respectively. Final values were 25.4% and 28.3% at $500^{\circ}C$, which showed that final weight of burnt straight permed hair was higher than the virgin hair by about 2.9%. In terms of morphological changes, the hair started to melt together with adjacent ones by burning till $300^{\circ}C$. The medulla and cortex were melt and the inside was empty like bamboo. The hair burnt till $500^{\circ}C$ was entirely carbonized and found as a clod. We found many blowholes at the surface of the hair clump.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.46 no.2
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• pp.89-103
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• 2020

A frizz hair is referred to the fly-away hairs that have become bulky or deviated from the regular hair and the cause of that is not clear known. The internal lipids are related to the physical properties of hair such as elasticity and tensile strength and interracial studies have previously conducted to relate the lipid mass and Afrikaan hair, which has a lot of frizzy hair. Although washing hair is the only way to control the hair loss without damage of hair surface, the number of washing and lipid loss are not linearly correlated. In this study, the amount of lipid hair was analyzed by washing the hair with a few different types of shampoos containing various conditioning polymers and oils of different polarities. The results confirmed that the higher the polarity of the oil, the higher the lipid content. This method was applied to Indian frizzy hair to evaluate the degree of frizziness and found that the frizzy volume was more severe for a hair with less lipids. On the other hand, the frizzy hair volume of fly-away hairs was observed more broadly for the hairs with higher lipid contents. In addition, the friction on the surface of the hair did not differ due to the oil treatment. Taken together, it was concluded that hair frizzing was affected by the amount of lipids in the hair rather than by the adhesion between the oils. Thus, this study suggests that controlling the lipid contents in hair may be an important solution in the development of hair anti-frizzy technology.

• Applied Microscopy
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• v.38 no.3
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• pp.265-273
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• 2008

We investigated the morphological differences of the ethnic hairs using scanning electron microscopy and transmission electron microscopy, sampled from African, Asian and Caucasian women. Transverse section of African hair had a highly elliptical type whereas those of Asian and Caucasian hairs had circular and elliptical types, respectively. The diameter of African hair showed wide variations from 90 to 115 ${\mu}m$. The diameter of Asian hair was 100 ${\mu}m$ and Caucasian hair had a lesser diameter of 80 ${\mu}m$ on average. African hair were much more damaged in cuticle layer compared with Asian or Caucasian hairs. In particular, endocuticle of cuticle cell had a lot of holes in it, which resulted that it tends to be easily broken. Phaeomelanin in the cortex of Caucasian hair had a concentrically helical structure in it.

• Applied Chemistry for Engineering
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• v.31 no.2
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• pp.220-225
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• 2020

Hair is made of proteins containing various amino acids. Ultraviolet (UV) radiation is believed to be responsible for the most damaging effects of sunlight, and also plays an important role in hair aging. The purpose of this study was to investigate the changes in morphological and chemical structures after ultraviolet B (UVB) irradiation of human hair. The UVB-irradiated hair showed characteristic morphological and structural changes, compared to those of the normal hair. The result from a scanning electron microscope (SEM) equipped with an energy dispersive X-ray diffractometer (EDX) showed that the scale of UV-irradiated hair appeared to be rough and the amount of oxygen element was higher than that of the normal hair. Fluorescence and three dimensional (3D) topographical images were obtained by a confocal laser scanning microscope (CLSM). In 3D images, the green emission intensity of normal hair was much higher than that of fluorescing UVB-irradiated hair. The intensity of green emission reflects the intrinsic fluorescence of hair protein. Also, a fluorescent imaging method using fluorescamine reagent was used to identify the free amino groups resulting from a peptide bond breakage in UVB-irradiated hair. Strong blue fluorescence of UVB-irradiated hair, which indicates a very high level of amino groups, was observed by CLSM. Therefore, the fluorescamine as an extrinsic fluorescence could provide a useful tool to identify the peptide bond breakage in UVB-irradiated hair. Infrared image mapping was also employed to assess the cross-sections of normal and UVB-irradiated specimens to examine the oxidation of disulfide bonds. The degree of peak areas with strong absorbance for the disulfide mono-oxide was spread from the outside to the inside of hair. The spectroscopic techniques used alone, or in combination, launch new possibilities in the field of hair cosmetics.

• Journal of Convergence for Information Technology
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• v.10 no.5
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• pp.216-223
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• 2020

We investigated the morphology of the scalp hair shaft from the base to the distal end of the newborn hair and the ratio of the longitudinal axis diameter of the scale exposed to the surface of the hair to the diameter of the hair by scanning electron microscopy(SEM). Neonatal hair was observed to taper from the area adjacent to the scalp toward the end of the hair. In this study, as the thickness of the hair increases, the ratio of the long axis diameter of the exposed scale becomes relatively small, but the long axis diameter of the exposed scale on the surface of the hair is similar in length regardless of the thickness of the hair. In conclusion, it was confirmed that the major axis diameter of the scales exposed to the surface of fine or thick hair does not change significantly.