• Title/Summary/Keyword: Surface Painting

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Bonding Quality of Cylindrical LVL and Surface Durability by Its Painting (원통형 단판적층재의 접착성 및 도장처리에 따른 표면내구성)

  • Suh, Jin-Suk;Kim, Jong-In;Hwang, Sung-Wook;Park, Sang-Bum
    • Journal of the Korean Wood Science and Technology
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    • v.40 no.6
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    • pp.418-423
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    • 2012
  • In order to develop the end use of cylindrical laminated veneer lumber (LVL) such as wooden crafts, the water proof-bonding strength, the resistance to abrasion and the surface hardness by painting the surface of LVL were investigated. The study results were as follows; The water proof-bonding strength through 5 cyclic test by boiling in water immersion and drying were favorable without delamination of glue line. Then the formulation of glue was resorcinol resin (100) to hardener of paraformaldehyde (5) by mixed weight percentage. The resistance to abrasion was relatively higher at cross section than tangential section. When tangential section of LVL was painted by UV protection oil, the resistance to abrasion was improved. In case of an cross section of LVL, the higher surface hardness appeared at larch core than radiata pine LVL. Also, in case of an tangential section of LVL, the higher surface hardness appeared at glue line than veneer side.

A Study on Paintless Molded Parts in TV Mask Front Using Gas-Assisted Injection Molding (가스사출성형을 이용한 TV MASK FRONT의 무도장 제품에 관한 연구)

  • 조재성
    • Transactions of Materials Processing
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    • v.11 no.8
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    • pp.691-700
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    • 2002
  • Injection molded plastic parts have many surface detects: weld line, sink mark, flow mark, gloss, shading, scratching, and so on. Because these surface faults have not been accepted esthetically, plastic parts are Produced through painting or texturing. The purpose of this paper is to develop a paintless molded part of TV Mask Front by flow control method and gas-assisted injection molding. In order to minimize defects from injection molding, this study was carried out using computer aided injection mold filling simulations using MF/FLOW and MF/GAS. Based on these numerical results, we developed FR(Flame Retardant) HIPS and established guidelines of part design, mold design, and Processing conditions. We have achieved of cost sayings, improvement of productivity, and utilization of recycling by eliminating surface defects and painting process.

Scientific Analysis and Conservation of Nectar Ritual Painting in the 16th Century (16세기 감로도의 과학적 조사와 보존)

  • Ahn, Jiyoon;Cheon, Juhyun;Kim, Sooyeon
    • Conservation Science in Museum
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    • v.14
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    • pp.13-22
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    • 2013
  • The Nectar Ritual Painting(Jeung7551) in National Museum of Korea is estimated to have been produced in the 16th century. Ezimagodo who is the head priest of Ruganji in Kyoto, Japan donated this painting in 2010. Overall, damages were serious, such as missing, staining, folding, insects of the face and mounting silk, therefore, it need to conservation treatment. The treatment of conservation in painting was removing surface stains and repairing missing area. It was mounted by following the original form. The analysis result of textile in mounting and support fiber used silk and hemp in microscope. Pigments in paint were divided into six color types. This painting was used that vermilion(cinnabar) and red lead for red color, litharge(massicot) and gold for yellow color, lead white for white color, malachite for green color, azurite for blue color, and carbon black(chinese ink) for black color.

Design of Rotary Atomizer Using Characteristics of Thin Film Flow on Solid Surfaces (완전접촉 경계면 위의 박막유동 특성을 이용한 회전무화기의 형상 설계)

  • Park, Boo Seong;Kim, Bo Hung
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.37 no.12
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    • pp.1473-1482
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    • 2013
  • A disc-type rotary atomizer affords advantages such as superior paint transfer efficiency, uniformity of paint pattern and particle size, and less consumption of compressed air compared to a spray-gun-type atomizer. Furthermore, it can be applied to all types of painting materials, and it is suitable for large-scale processes such as car painting. The painting quality, which is closely related to the atomizer performance, is determined by the uniformity and droplet size in accordance with the design of the bell disc surface. This study establishes the basics of how to design a surface by modeling the operating bell disc's RPM, diameter, surface angle, and film thickness considering dye characteristics such as the viscosity, density, and surface affinity.

Coordination of Two Manipulators Using Force Torque Sensor (Painting on the Three-Dimensional Surface)

  • Nakajima, Haruo;Ishida, Hirofumi;Ishimatsu, Takakazu;Kasagami, Fumio
    • 제어로봇시스템학회:학술대회논문집
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    • 1994.10a
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    • pp.597-600
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    • 1994
  • A Robot system to realize a painting using a writing brush is explained here. Based on the three-dimensional data about the target china, the movements of the writing brush is determined. The movement is realized by the movement of two robot manipulators which move coordinatedly. Experimental results reveals the applicability of one system.

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A Graphics Accelerator for Hidden Surface Removal and Color Shading (가려진면 제거와 색도 계산을 위한 그래픽스 가속기)

  • 방경익;배성옥;경종민
    • Journal of the Korean Institute of Telematics and Electronics A
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    • v.28A no.5
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    • pp.398-406
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    • 1991
  • This paper presents a graphics accelerator for fast image generation. The accelarator has three major functional blocks: linear interpolator, multipliers and Edgee Painting Tree. Linear interpolator with coupled binary tree structure interpolates functional values of two end points. Two multipliers compute input values of interpolator in parallel. Mask pattern which removes out invalid data is generated by Edge Painting Tree. The proposed architecture in this paper is responsible for 64 pixels and can process about 5,900 10x10polygons per second.

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Influence of Animal Glues Application for Painting Restoration on Paper Characteristics (회화 복원용 교의 적용이 종이 특성에 미치는 영향)

  • Park, Mi Seon;Kim, Hyoung-Jin
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.47 no.4
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    • pp.127-135
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    • 2015
  • Artists have been used animal glues for a long time as binding and sizing materials of paintings in many countries including Korea. Since animal glues as a binding material lose their own adhesive strength by aging, pigment particles or pigment layers are easily detached from painting surface. Restaurators prefer to use animal glues for consolidation of pigment particles or pigment layers because artists use animal glues as a binder for their painting works. It is widely known that animal glues have different characteristics such as viscosity, stability on water etc. But there are still a few requirements to consider their stabilities for the restoration of paintings. Therefore, this study was aimed to evaluate of stability and efficiency of animal glue applications. The efficiency of animal glue application was decreased with increasing the concentration of animal glue solution. This result means the simple tendency, but does not representative data for other animal glues made from same raw materials. In most cases, the surface and mechanical characteristics of animal glues are dependent on some factors, like viscosity and concentration of animal glue solution.

Structural behavior on the steel beam with strengthening bonded carbon plate (카본판을 접착보강한 강재의 거동분석)

  • Sung, Ikhyun
    • Journal of the Society of Disaster Information
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    • v.12 no.1
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    • pp.54-61
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    • 2016
  • The use of advanced composite materials in strengthening and repair of existing structures is increasing rapidly. This paper describes an effectiveness of a bonding of carbon fiber reinforced sheets to corroded steel members for the repair. Three types of surface treatment, what we call cleaning, of corroded plate are chosen as parameters. They are "without cleaning","removal of painting by brushing" and "complete removal of painting". From the experimental study, the following findings are obtained. 1) When the steel plate is subjected to tensile force, carbon fiber sheets adhered to the painted steel gives a higher strength against peeling compared to that of the plate without painting, 2) The grade of surface treatment, or cleaning of the corroded steel plate affects the strengthening effect.

A Study on Applicability of Neem Resin as a Fixative on the Painting Layer of Mural Paintings from Payathonzu Temple in Bagan, Myanmar (미얀마 바간유적 파야톤주 사원벽화의 채색층 고착처리를 위한 님(Neem) 수지 적용 가능성 연구)

  • Eum, Sojeong;Lee, Hwasoo
    • Conservation Science in Museum
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    • v.24
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    • pp.117-132
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    • 2020
  • The painting layer of Payathonzu temple mural paintings in the ruins of Bagan Myanmar has been damaged due to various reasons. In this study, the applicability of Neem resin, a traditional Myanmar adhesive, as a fixative on the painting layer was examined. Cow glue and Paraloid B-72 were selected as fixatives in the comparison group, and pseudo-specimens with conditions similar to the original mural paintings were produced to examine the changes before and after applying the fixatives and according to the deterioration experiments. As a result of conducting the experiments and comparing the fixatives, it was found that changes on the surface such as smudge, yellowing and gloss are greater with the application of higher concentration of Neem resin than with other fixatives. However, such changes were relatively small under the condition of 4% concentration. It was also confirmed that chromaticity and glossiness vary greatly between before- and after-application of the fixatives but that such discrepancies tend to decrease at 4% concentration compared to other concentrations. As for fixation strength, it was found that the fixation capacity of Neem resin on the base and painting layers is overall higher than other fixatives as the concentration is increased. Therefore, the applicability of 4% concentration of Neem resin as a fixative on the painting layer was confirmed considering the low surface changes according to environmental factors, low color discrepancy and glossiness, and characteristics of excellent fixation strength. It is believed that the findings of this study could be used as basic data for the preservation of Payathonzu temple mural paintings in the future.

The Research of Henna Design classified by Fashion Images according to the preference of Korean Pattern (한국문양 선호도에 따른 패션 이미지별 Henna Design기획)

  • Lee Soo-Hyun;Park Ok-Lyun
    • Journal of the Korean Society of Clothing and Textiles
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    • v.29 no.5 s.142
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    • pp.626-636
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    • 2005
  • These days. the representative fashion image is sexy look. Hence, a bodily exposure phenomenon has been spread by the effect of minimal fashion. In terms of this trend, the body make-up art such as the temporary painting have the painting dyeing the surface of skin has the characteristic naturally decolorized. It is different from tattoo pricking the skin with dyes. Especially, Henna among the temporary painting has been used to represent the individual characteristic for a long time. However, the research of henna pattern related to fashion images and korean traditional patterns has never been developed before within the country. In the research, we developed Korean Henna design through the application of Korean traditional patterns. First of all, a fashion image was classified as five parts (romantic, sexy, eligant, modem and casual) adopted by relebvant experts.