[논문]3D Expression of Mosaic Wallcovering by Color Difference -Focused on the Warp Direction of String and Woven Mosaics-

Lee, Joonhan; Kim, Sun Mee

doi:10.12940/jfb.2019.23.6.27

[국내논문] 3D Expression of Mosaic Wallcovering by Color Difference -Focused on the Warp Direction of String and Woven Mosaics- 원문보기

패션비즈니스 = Fashion business, v.23 no.6, 2019년, pp.27 - 36

Lee, Joonhan (Yeomyung Wallcoverings Co., Ltd.) , Kim, Sun Mee (Dept. of Living Design, Konkuk University)

Abstract ▼ AI-Helper

This study aimed to analyze the color differences by warp direction of textile mosaics by focusing on two representative textile wallcovering types, woven and string. Mosaics made of string can be expressed as having three-dimensionality based on color differences resulting from the warp direction of the string. String wallcoverings, unlike woven or non-woven wallcoverings, only have vertically oriented warp lamination on the backing paper without weft, and therefore, the reflection and backing color can be expressed differently depending on the angle of the mosaic. In this study, two identical wallcoverings were manufactured using the same materials but using different textile types, woven and string. The wallcoverings underwent die-cutting by each angle and were deployed in cube form. The analysis was based on ISO 5631-1:2015. The color difference between the two wallcoverings, woven and string, was shown as ΔE* 9.29. Based on the standard deviation of the color difference for each mosaic angle, woven ranged from ΔE* 0.09 to 0.94 and string ranged from ΔE* 1.92 to 3.74, showing a larger color difference. Thus, using the color differences of string to create a mosaic wallcovering improved dimensionality.

주제어

표/그림 (12)

그림 Figure 1. Optical Illusions by Line (Kim, 1996, p.18)
그림 Figure 2. CIELab Color Space (www.researchgate.net)
표 Table 1. Specifications of Textile Wallcoverings
그림 Figure 3. Textile Wallcoverings to Mosaic
그림 Figure 4. Shapes of Die-Cut Mold
그림 Figure 5. Mosaic Layout by Die-Cut Mold
그림 Figure 6. Woven Mosaic Wallcovering by Mold
그림 Figure 7. String Mosaic Wallcovering by Mold
그림 Figure 8. Environment of Image Taken
표 Table 2. Mean Color Difference by Wallcovering Type
표 Table 3. Mean and Standard Deviation of L*, a*, b* and ΔE* by Position
그림 Figure 9. L*, a*, b* Spreading of String Mosaic

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문제 정의

This study aims to enhance the marketability of mosaic products by analyzing the direction of the warp and color difference based on CIELab system. The method of study, first, manufacturing strings and woven in the same color and density.

제안 방법

In this study, two different types of wallcoverings were manufactured using the same material to create mosaics, hereafter referred to as String and Woven (Table 1). linen spun yarn (bleached, 25 lea/1) were obtained from Samkang Trade Co.
This study aims to enhance the marketability of mosaic products by analyzing the direction of the warp and color difference based on CIELab system. The method of study, first, manufacturing strings and woven in the same color and density. Second, make mosaic of each material at a constant size and angle.
74, the minimum value of String was two times bigger than that of Woven. Through the result, string is suitable for three dimensional mosaic implementation by expressing more color differences, and it was researched the wallcovering using 90 degree mold express the most color differences of string mosaics.

대상 데이터

The other molds were rotated 120° each pieces. All the samples were produced to have 10 units with 30 pieces (Figure 6, 7).
Mosaic colors were measured according to ISO 5631-1:2015 and the environments of imaging were regulated as following. Mosaic images were taken by a camera (Sony DSC-RX100 II model), manual mode 1/80 f1.8, ISO400, referring to the study by Osaki. The light source was used a 15w PAR30 LED lamp (LG Innotek) and down lighted to the sample.
8, ISO400, referring to the study by Osaki. The light source was used a 15w PAR30 LED lamp (LG Innotek) and down lighted to the sample. The distance from the lamp to the wall (t1) was 30㎝ and to the sample (t2) was about 95㎝.

이론/모형

In this study, CIELab color space was used as a method to analyze the color difference between woven and string textile mosaics based on ISO 5631-1 (Yang, 2017). CIELab is a right-angled coordinate system with L*, a*, b* as the axes (Figure 2).
However, a* was almost equal between both wallcovering. To detect the chroma and hue differences, an analysis based on the CIEL*C*h method was performed simultaneously. The brightness chroma difference was observed minimal ΔC* = 0.

성능/효과

String is a good textile material type to express 3D effect, which has recently increased the popularity of mosaic wallcoverings. The results of this study elucidated that compared to woven wallcoverings, String wallcoverings express bigger color difference with their oriented warp when made into a cubic mosaic.

참고문헌 (19)

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