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IntroductionCAD for Fashion and

Textiles

Jimmy LamThe Hong Kong Polytechnic University

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Agenda

Introduction History Application Benefits Drawback CAD in ITC

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IntroductionWhat is CAD

CAD (Computer Aided Design)

Any part of the design process utilize the computer as a tool = CAD

In textile and fashion industrials, CAD include graphics applications used for purposes of visualizing design, technical specification and functions.

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CAD was originally developed on industry-specific or “turnkey” system

CAD is a mainstream tool for the competitive market

Most companies have integrated some form of CAD technology into their design and production processes

History

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Applications of CAD

To create colourways 65%

Printed fabric design 60%

Merchandising presentations

48%

Knit designs 41%

The National Knitwear Association and A. Grudier Consulting conducted a surveyof 228 apparel manufacturers in 1995.

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Some CAD Applications by Function

Merchandising Design Marketing

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Merchandising

Line selection Product selection Costing Product quality

What is the CAD used for Merchandising?

CAD is used for Visual Presentation for Merchandising process

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Design

Trims Embroidery Silkscreen Concepts Fabrics Colour story

Design specs Line development Photos Drawing Yarn design Colour matching

Which CAD system is focused on concept and which one is technology based?

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Marketing

Advertising Catalogues Magazines photos Video Newsprints Labeling and packaging Story boards Retail boards

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CAD is the most visible, producing exciting new patterns for fabrics

Christian Dior,

Autumn/Winter 01/02

Design Using CAD

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Influence of the computer on textiles begins at the textile design stage and continues through manufacturing, marketing and retailing

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Design Spec

3D Visual Merchant

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From internet point of view:

the internet allows users to browse through designer collections at home:

http://www.isseymiyake.com/ http://www.johngalliano.com http://www.landsend.com

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Common use of CAD : design of surface pattern for fashion and furnishing fabrics

The system allows complex designs to be completed in short time

As software packages are increasingly specialized, easier for designers to work with design, e.g. PrimaVision, photoshop, illustrator

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Benefits Increase productivity Reduce product development time Increased creativity to improve conceptual

design Reduced cost of samples and prototypes Lower reject rate Create universally understood

communications among all phases of operation

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Application Benefit

Textile design Time cut 50% - 75%

Reduce sample cost

Lower reject rate

Garment design Saves times in approval process

Saves costs in material and labour

Evaluate designs Respond to changes quicker

Virtual presentations to consumers

Adapt to consumer reactions

Stimulate designer’s creativity

More time for development

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Online catalogue Reduce costs and times

Retail sales feedback Increase customer satisfaction

Work on design with customers

Increases customer satisfaction

Improved quality

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The role of computers in textile and fashion industry continue to grow

The industry is looking for designers and merchandisers who are computer literate

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Some Drawbacks

Cost Designer – machine operator – lost creativity Feel lost without the tools of artists Time to fully realize the system’s capabilities

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Websites of CAD Retailers

www.fashionflash.com www.monarchcad.com www.cadds.com/design/design.htm www.lectra.com

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Questions

Any limitations for CAD application in textile and garment industry?

Can CAD system replace traditional sample production process?

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CAD Facilities in ITC

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PRIMAVISION (TCX) – located in QT608Textile and Fashion Design System

Design system famous for its speed, stability and user-friendliness.

Easy-to-use graphics tools for fast style, pattern and colour development, catalogue and storyboard creation.

Design collections using libraries including Silhouettes, Woven Constructions, Accessories, Knit Structures, Textures, and Materials.

A variety of professional modules for knit, weave and textile print design.

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Adobe Photoshop/ Illustrator – located in QT602

General Purpose Design System

Image editing

Common software used in fashion design/ fashion presentation/ graphic design

Compared to PRIMAVISION it is more user-friendly and the cost is much lower

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located in C041 (weaving lab.)

Tajima Embroidery Machine

Designed for high speed operation at 1,000

stitches per minute and quieter environment.

Special Purpose Garment Design System

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Digital Weaving, Norway AS

Rapid Sampling System: Weaving CAD/CAM (1)

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AVL looms – compu-dobby

Input and edit a design on screen and immediately execute it on the loom. It's still handweaving, but with greater efficiency and infinitely more creative control.

Rapid Sampling System: Weaving CAD/CAM (II)

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located in C042 (dyeing lab.)

TexPrint – digital printer

Editing or retouching the images.

Colour Reduction Tools, Automatic Repeat Setting Tools, and Graphical Editing Tools.... enable the user to process the images for final printing.

Possible to process complex images, and in no time, the image is ready for printing in different permutations and combinations.

Supports colour separations for specific colours and as per the planes for e.g.: [RGB, CMYK]

Rapid Sampling System: Digital Printing

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Questions

Discuss the CAD features for rapid sampling for weaving loom

Discuss the CAD features for digital printing for textile printing.