• 한국의상디자인학회지
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• 제25권3호
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• pp.113-125
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• 2023

The COVID-19 pandemic has led to the normalization of mask-wearing worldwide, and young children are particularly vulnerable to respiratory diseases. Children's masks come in various sizes and shapes, causing confusion among consumers who struggle to find products that can accommodate their child's unique physical conditions. This research aims to analyze the shape and dimensions of health masks designed for young children. A total of 67 mask varieties were collected, and 58 were subjected to analysis. The masks were found to have two primary shapes: foldable and beak-like, with sizes categorized as small and extra-small. The majority of masks were manufactured in Korea, and the size labeling systems varied among manufacturers. The mask materials were non-woven fabric or polypropylene, and there was diversity in terms of the adjustable earbands and the use of additional accessories. The dimensions of the masks varied depending on their shape, with significant differences in the weight and the length of the wire holes. Subsequent research should focus on conducting wearability evaluations to verify the dimensional suitability of commercially available children's health masks based on shape and size. Additionally, this study aims to provide foundational data that can assist in the development of children's masks with size ranges that differentiate them from adult masks and cater to specific age groups.

• 한국광학회지
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• 제15권1호
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• pp.79-85
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• 2004

후면의 석영면에 위상 패턴을 형성하여 투과율 조절을 구현한 포토마스크에 대해 보고한다. 위상 패턴의 크기와 패턴 조밀도에 따른 조명 동공의 형태 변화에 관한 이론적 결과와 투과율 조절 포토마스크를 사용한 웨이퍼 상 CD(critical dimension) 균일도 개선에 관한 실험적 결과에 대해 기술한다. 투과율 조절을 위한 위상 패턴은 패턴이 형성되지 않은 영역에 대해 180$^{\circ}$의 상대적 위상을 갖도록 석영면을 식각한 콘택홀 형태의 패턴을 사용하였다. 콘택홀 패턴의 크기가 작을수록 본래의 조명동공 형태를 유지하게 되며, 동일한 패턴 조밀도에서 더욱 큰 노광 광세기 저하가 일어남을 알 수 있었다. 패턴 조밀도를 위치별로 변화시켜 CD균일도 개선에 적합한 투과율 분포를 포토마스크 후면에 형성하였다. 투과율 조절 포토마스크를 140nm 디자인 롤을 갖고 있는 DRAM(Dynamic Random Access Memory)의 한 주요 레이어에 적용하여 CD 균일도를 3$\sigma$값으로 24.0nm에서 10.7nm 로 개선할 수 있었다.

• 융합정보논문지
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• 제11권11호
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• pp.288-295
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• 2021

본 연구는 마스크팩 유효성분을 흡착시킨 엔드 페이퍼를 퍼머넌트 웨이브 시술시 모발에 미치는 영향을 알아보고자 수행하였다. 시중에 판매되는 마스크팩 중 청귤, 콜라겐, 어성초 유효성분을 함유한 마스크팩을 구입하여 엔드 페이퍼에 흡착시켜 퍼머넌트 웨이브를 시술하였다. 실험 방법으로 모발 굵기, 모발 보습력, 인장강도, SEM을 이용한 모표피 관찰, EDS를 이용한 모발 구성 원소 분석을 하였다. 실험 결과 어성초 유효성분을 엔드 페이퍼에 처리한 실험군이 모발 굵기, 인장강도, 모표피 관찰, 모발 구성 원소 분석 결과 모발 보호효과가 있는 것으로 확인되었다. 또한 청귤 유효성분을 엔드 페이퍼에 처리한 실험군은 모발 보습력 실험 결과에서 비교적 많은 수분을 함유하고 있는 것으로 확인되었다. 유효성분들이 함유된 기초화장품 제품들을 활용하여 모발화장품으로 개발하여 활용하고, 산업현장에서 화학시술 시에 적용할 수 있도록 다양한 재료와 도구들에 대한 개발과 연구가 진행되기를 바라는 바이다.

• 한국컴퓨터정보학회논문지
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• 제27권10호
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• pp.185-193
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• 2022

본 연구는 성인 여성의 얼굴 유형에 적합한 마스크 패턴 개발을 위하여 시판되고 있는 다회용 마스크 패턴을 비교·분석하고자 하였다. 이를 통해 마스크 패턴 개발 및 생산업체에 필요한 자료를 제공하고자 하였다. 시판 다회용 마스크 패턴의 치수 및 형태를 비교한 결과, 성인용으로 제작된 L사이즈 마스크임에도 불구하고 치수에 있어서 큰 차이를 나타냈다. 가상착의에 대한 외관평가 결과 정면의 앞중심선의 수직, 마스크의 윗부분 감쌈과 여유, 코높이, 마스크 아랫부분의 감쌈과 여유에서 디자인별로 유의미한 차이가 있었다. 측면도 얼굴 옆부분의 감쌈, 옆부분의 여유, 끈 간격과 길이에서 유의미한 차이를 나타냈다. 외관평가 결과, 마스크4가 가장 좋은 평가를 받았다. 마스크 패턴의 형태는 코 아랫부분에 크게 다트가 있어 얼굴의 입체적인 형태를 커버할 수 있도록 되어 있으나 마스크에 따라 곡선의 정도와 각도에 차이를 나타냈다. 마스크 상부와 마스크 하부, 볼 부분은 밀착되지만, 코와 입 부분에는 여유가 있는 마스크 패턴의 평가가 높았다. 마스크 패턴은 얼굴형 및 치수에 대한 분석을 통해 마스크 상부길이와 하부길이, 코 높이에 따른 마스크 다트량의 설정이 이루어져야 할 것으로 생각된다.

• 한국의류산업학회지
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• 제25권1호
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• pp.82-91
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• 2023

The children who are part of this study are compelled to wear masks at educational facilities for an extended period of time as they continue to be exposed to Asian dust, fine dust, and COVID-19. However, use of masks is currently causing them a lot of inconvenience. This study aimed to gather basic data for the development of a mask that is suitable and comfortable for children to wear. A total of 331 children aged 1 to 9 were investigated through their parents in terms of their lifestyle, mask wearing and purchasing status, mask preferences, mask inconvenience, and mask improvement. According to the survey on mask use, the proportion of children aged 1-3 years old and wearing ultra-small/XS masks, 4-6 year olds wearing small/S, and 7-9 year olds wearing small/S was the highest. More than 80% of children were wearing masks with a standard filter of KF80 or higher. The purchase criteria for children's masks were found to be excellent in terms of wearing comfort and meeting the filter standards. According to the survey on inconvenience of wearing masks, the majority of those surveyed expressed the need to develop children's masks of different sizes. Furthermore, they experienced various kinds of inconveniences from adult masks, such as the material quality and length of earring bands; it was deduced that these aspects need to be taken care of. The vertical folding type was the most popular in the mask design for children. Children have to wear masks for a prolonged period of time, but they are experiencing lot of inconvenience, which need to be addressed.

• 한국의상디자인학회지
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• 제24권1호
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• pp.15-33
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• 2022

The purpose of this study was to categorize the decorative characteristics of the Rococo Age, which displays the most glamorous and elegant decorative beauty, in architecture, interior decorations, paintings, and patterns, and to analyze these characteristics and graft them onto art masks in a modern way. Piece I is a mixed media piece that based its motif on the ceilings and pulpits of the German Vis Pilgrimage Church, which is representative architecture of the Rococo Age. It was glamorously produced using gold and cubic zirconia. Piece II is also a mixed media piece that borrowed its motif from the exterior and gazebo of the Sanssouci Palace in Germany, another representative piece of architecture from the Rococo Age, and it was produced to clearly display the image of the Sanssouci Palace, using emerald and ivory. Piece III applies the furniture trends of the Rococo Age. Curves in S and C shapes, which can often be found in Chinese furniture, along with dark backgrounds, common in portrait paintings, were applied to give a sense of weight and dignity. Piece IV is an application of the fabric patterns of the Rococo Age. Continuous patterns of flowers and greenery stems were drawn on the mask to recreate the fabric patterns of the age. Piece V used the painting 'Swing' of the Rococo Age as its inspiration. Lace and ribbon decorations were used to emphasize feminine beauty and express the loveliness of the woman that appears in the painting. Piece VI borrows from the painting 'Madame de Pompadour' of the Rococo Age and the clothing worn by Pompadour. This piece grafted colors and themes through the painting and expressed a fusion of the dresses of Pompadour and lace that is clearly displayed in the architecture, paintings, clothing, interior decorations, and patterns of the Rococo Age, along with the rocaille (asymmetrically shaped decorations that resemble clams), flowers, leaves, stems, and Chinoiserie styles. These motifs clearly display the decorative characteristics of the age and these were grafted them onto art masks, confirming that it is possible to create new designs.

• 한국의상디자인학회지
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• 제24권1호
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• pp.35-43
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• 2022

This study aims to analyze the physical properties of non-woven fabric sheets, which continue to grow in the cosmetic market. Non-woven fabric sheets were used as specimens, and a total of 17 samples were analyzed. To evaluate the physical properties of the non-woven fabric sheet, the weight, tensile strength, surface properties, free swell absorption, and wet stiffness were tested. Through the results itw was determined that non-woven fabric sheets for mask packs should be manufactured considering fiber arrangement so that the weight is 40 g/m², and the tensile strength should be maintained near 12 kgf. In addition, it was confirmed that the material selection and process conditions should be adjusted so that the free swell absorption is at least 8 g/g, and the wet stiffness is 200 mg. Therefore, since the non-woven fabrics for the mask sheets can be used in various products depending on fabric composition, this study will be expected to be basic data for the continuous growth of the sheet-type mask packs coming to market.

• 한국의류산업학회지
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• 제24권4호
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• pp.399-407
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• 2022

Wearing a mask is essential during the ongoing COVID-19 pandemic. For this study, an online survey was conducted on the actual use of masks among adults in their twenties and older. We used 389 questionnaires for the final analysis, excluding insincere or incomplete questionnaires. We then analyzed the responses using descriptive statistical analysis, frequency analysis, t-test, and ANOVA. More than half of the respondents indicated that they wore a mask for five to ten hours a day, with KF masks being the most frequently used. Participants who most frequently used cloth masks were more likely to consider color, design, and eco-friendliness, while those who used KF masks were more concerned with price and safety. There was no significant difference in purchase satisfaction between mask types, but the purchase intention was higher for KF masks. When purchasing a KF mask, there were significant differences across genders in terms of price and eco-friendliness preferences. There were also significant differences across age groups in price, eco-friendliness, skin irritation, and comfort preferences. Previous studies have shown a significant difference in gender and age in terms of preferred mask colors and designs. However, this survey found no significant difference across these categories. These findings indicate those mask manufacturers should consider safety and eco-friendliness over mask color and design.

• Korean Chemical Engineering Research
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• 제60권2호
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• pp.282-288
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• 2022

코로나 팬데믹 시대에서 비말(respiratory droplet)을 통한 감염 및 확산을 막기 위해 마스크는 없어서는 안 될 생활 필수품이 되었다. 본 연구에서는 두 가지 다른 타입의 마스크(KF-94 마스크와 덴탈 마스크)가 비말 차단에 얼마나 효과적인지를 파악하기 위하여, i) 각각의 마스크를 구성하고 있는 필터의 젖음성(wettability) 특성을 분석하고, ii) 필터 표면에 빠른 속도로 충돌하는 미소 액적의 동적 거동 특성을 실험적으로 관찰하였다. 각 필터의 구성 재료에 따라 상반된 젖음성 특성, 소수성(hydrophobicity) 또는 친수성(hydrophilicity)을 보임을 확인하였다. 또한, 일정 체적을 갖는 미소 액적을 안정적으로 토출하는 공압 조건을 탐색하고 액적의 충돌 속도 변화에 따른 액적 충돌 거동 변화를 분석하였다. 마스크를 구성하고 있는 필터의 종류와 액적 충돌 속도에 따라 i) 필터를 통과하지 못하거나(no penetration), ii) 필터에 포획(capture)되거나, iii) 필터를 통과(penetration)하는 등의 다른 충돌 후 거동을 보임을 확인하였다. 이러한 결과들은 비말 차단용 마스크 디자인에 있어 매우 기본적이고 유용한 정보를 제공할 뿐만 아니라, 다양한 다공성 표면에서의 액적 거동에 대한 학문적 연구에도 도움이 될 것으로 판단된다.

• 한국의류학회지
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• 제48권3호
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• pp.417-432
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• 2024

This study aimed to enhance the comfort of health masks by conducting in-depth interviews, online surveys, and wearing tests on commercial health masks. The findings are summarized below. In-depth interviews revealed that the most comfortable mask styles were ranked as follows: Beak-1 (B-1) & Beak-2 (B-2) style > Flat style > 3-Horizontal foldable (3H) style. Men generally preferred flat style masks, while women favored beak-shaped masks. The internet survey results showed that 77.8% of surveyed brands offered a variety of mask styles, with 3H and B-2 masks being the most common. Different brands provided masks with different filtration levels, ranging from KF-AD to KF94. Size consistency also varied among brands, with flat masks having relatively consistent dimensions and B-2 masks showing significant size differences. Wearing tests indicated that 3H and B-1 masks were highly satisfying for categories like "itchiness," "unpleasant odor," and "mask slipping." Conversely, flat masks scored the highest satisfaction in classifications such as "stiff," "heavy," "thick," "hot while wearing it," "moisture accumulation," "breathing discomfort," "short ear straps," and "itchiness". Overall, the flat style, B-1, and B-2 yielded higher satisfaction levels, while 4-Horizontal foldable (4H) and 3H garnered lower satisfaction scores on wearing tests.