This specialized program provides textile restorers and preservationists with a comprehensive understanding of color science principles and their application in the restoration and preservation of historical textiles. Participants will gain insights into the chemistry and characteristics of dyes and pigments used in historical textiles, learn advanced color analysis techniques, and develop expertise in color-matching methodologies for accurate restoration. They will explore the impact of aging and environmental factors on textile color, and learn to implement conservation practices that preserve the original color palette of historical textiles.
Color Science For Textile Restorers And Preservationists
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Color Science For Textile Restorers And Preservationists
Description
Benifits
- Understand the role of color science in textile restoration and preservation.
- Identify and analyze color pigments and dyes in historical textiles.
- Develop expertise in color matching techniques for textile restoration.
- Restore and preserve the original color palette of historical textiles.
- Stay informed about the latest conservation practices for textile coloration.
Course Instructor
Engr. Md. Fakhrul Islam CCol ASDC
Chartered Colorist (UK); Textile Color Management Specialist | Dyeing and Finishing Professional | Associates of Society of Dyers & Colorist (SDC-UK), CLSSBB (PQLS-India), PGDTM (SEIP), MBA in Textiles (BUTEX), B. Sc In Textile Engineering (Coloration)
- 250+ people are doing the course
- It will take 15 hours
- 10 Videos Lectures
- 10 Class Materials
- 10 Quiz Tests
- 2 Written Tests
Course Content
Leave-1
PART 1: BASIC PRINCIPLE OF COLOR SCIENCE
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- Introduction to color as a sensory experience perceived by the eye and processed by the brain.
- Explanation of white light and how it consists of seven colors.
- Understanding why the sea appears blue and why an apple appears red.
- Introduction to the two types of photoreceptors in the retina: rods and cones.
- Explanation how appearance and background change color vision.
PART 2: COLOR CLASSIFICATION SYSTEM
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- Discussion on the challenges of naming colors.
- Explanation of how colors are defined and organized based on hue, chroma, and lightness.
- Introduction to the color palette and criteria for creating a color palette.
- Overview of the Natural Color System (NCS) and the Munsell color classification system.
- Introduction to the Farnsworth-Munsell 100 Hue Test and the Pantone color system.
PART 3: THREE ELEMENTS OF COLOR (Light)
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- Explanation of the three elements of color perception: light source, observer, and object.
- Discovery of how white light can be split into different colors using a prism.
- Understanding the electromagnetic spectrum and different types of light sources.
- Explanation of daylight and its color temperature variations.
- Introduction to standard light sources and the concept of color temperature.
- Differentiating between lumen and lux measurements.
- Overview of the Color Rendering Index (CRI) and different types of light sources.
PART 4: THREE ELEMENTS OF COLOR (Object & Observer)
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- Understanding how the color and appearance of an object are determined by the reflection and absorption of light.
- Explanation of the reflection and absorption of light and their impact on object color.
- Overview of the human eye as the observer and the role of cones in color vision.
- Introduction to the RGB color model
- Discussion on the opponent process theory and its application.
PART 5: STANDARD OBSERVATION & METAMERSIM
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- Introduction to the International Commission on Illumination (CIE) and its role in standardizing light, illumination, color, and color spaces.
- Overview of the standard observer and illuminant in color measurement.
- Explanation of standard viewing conditions and guidelines for consistent color evaluation.
- Introduction to the additive and subtractive color models.
- Explanation of metamerism and its occurrence when colors appear differently under different light sources.
- Differentiating between achromatic and chromatic colors.
Leave-2
PART 1: THE COLOR SPACES, COLOR DISTANCE EQUATIONS
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- Definition of color space and its role in representing colors.
- Introduction to the CIELAB, CIELCH color spaces, and its parameters.
- Explanation of color deviation and color differences in the CIELAB color space.
- Overview of color distances and the Delta E (ΔE) value.
L-2, PART 2: THE CMC, COLOR MEASUREMENT COMMITTEE
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- Explanation of the limitations of the CIE76 color distance formula.
- Introduction to the CMC color distance equation and its improvements over CIE76.
- Introduction to the CMC formula and its use in calculating color differences.
- Application of CMC DE (2:1) in the textile industry for color difference evaluation.
- Advantages of CMC Equation, Agreement
L-2, PART 3: SPECTROPHOTOMETER – SOFTWARE INTERFACES
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- Utilizing software interfaces for quality control purposes, including color coordinate recording, color distance evaluation, pass/fail decision-making, etc.
- Managing data, importing/exporting color values, and evaluating metamerism, whiteness, brightness, opacity, and color fastness.
- Exploring software interfaces for formulation tasks, such as recipe formation, database management, recipe calculation, etc.
- Evaluating and adjusting color recipes, archiving color shades, and assessing recipe performance and cost.
- Importance of proper sample preparation and presentation for accurate color measurement.
L-2, PART 4: COLOR TOLERANCES AND ACCEPTABILITY
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- Understanding the need for color measurement and consistency in industries.
- Differentiating between perception, acceptability, and color tolerances.
- Considering process capability and customer requirements in establishing color tolerances.
- Setting pass/fail limits and exploring DE*, Lab*, LCH*, and CMC tolerances.
- Explaining the meaning and determination of color tolerances using visual quadrant comparisons.
L-2, PART 5: COLOR STRENGTH AND TRIANGLE SELECTION
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- Color strength (K/S) measures the depth of color based on spectral data and the wavelength of maximum absorption (Lambda Max).
- The Kubelka-Munk equation calculates color strength (K/S) based on absorption and scattering coefficients.
- The standard depth of dyestuff is the highest chroma value at a specific depth.
- Gamut analysis aids in triangle selection for color formulation, considering factors like area size, chroma movement, metamerism, and dye selection.
