CAD or Computer-aided design has brought a revolution in the Textile Industry. In today's world, the Textile Industry is being modernized day by day. The designs are used in different textiles manufacturing processes made in CAD. The Textile Industry, which wants to stand out from the crowd and be a renowned and a reliable one, must have the CAD system or CAD software in their manu-facturing process. CAD has made the time consuming and cumbersome process of textile designing easier. Now thoughtful and innovative designs are available to the textile designers and textile manufac-turers. CAD is an electronic tool that enables you to make quick and accurate drawings with the use of a computer. Unlike the traditional methods of making drawings on a drawing board, with CAD you can sit back in an easy chair and create wonderful drawings just by the click of the mouse. Moreover, drawings created with CAD have a number of advantages over drawings created on a drawing board. CAD drawings are neat, clean and highly presentable. Textile drawings can be modified quite easily and can be presented in a variety of formats.
When the products in pre-manufacturing stage are designed with the help of computer-based tools, it is termed as CAD or Computer-aided design. Sometimes the acronyms such as CADD or CAID are also used for "Computer-aided design and drafting" and 'Computer-aided Industrial De-sign' respectively. These terms are mostly used in the sectors related to the manufacturing of engineer-ing goods. As far as textile industry is concerned, CAD is generally used for interpreting computerized designing. It includes both software and sometimes special-purpose hardware.
The textile designs are the original works of the designers. CAD helps them to visualize and see their imaginative design in the final form without producing any sample watch. Sometimes, the custom-ers too provide ideas for designing according to their requirements. These are in the form of painted artwork or fabric samples and sometimes film negatives. The textile designers, with the help of CAD, convert them into workable designs. For this to be done, the sample is scanned with the help of either scanners or digital cameras and then is edited to obtain the final design of a fabric.
CAD is an accurate pattern making software for perfect fitting garments. It is an integrated suit of software, including pattern design, grading, detailing, marker layout and CAD drafting. A practical affordable pattern making software system is ideal for home based or commercial business.
Different areas of Textiles where the CAD systems are mostly used in:
Textile Design System: Most fabrics, yarn dyes, Plain weaves, jacquards or dobbies can be de-signed using a CAD.
Knitted Fabrics: Some systems specialize in knitwear production and final knitted design can be viewed on screen with indication of all stitch formation.
Printed Fabrics: The print motif can be resized, recoloured, rotated or multiplied depending on the designer's goal. New CAD systems are coming which have built in software to match swatch colour to screen color to printer color automatically.
Sketch Pad Systems: There are graphic programs that allow the designer to use pen or styles on electronic pad or tablet thereby creating freehand images which are stored in the computer.
Embroidery Systems: It requires assigned color and stitch to different parts of the design. Data is fed and multiple head work. Scanned images can also be used.
Digitizing Systems: This can be done by defining the X, Y co-ordinates of series of selected prints around the pattern.
Grading Systems: Certain points considered as 'Growth Points' at which the pattern has to be increased to accommodate different body size like 32/34/36 and so on (Fig.15.1).
Marker Making Systems: It ensures minimal wastage of fabric. Striped fabric can also be done.
Cutting Operations: Automated Cutting machines can be used after direction from marker making.
So, it is said that, the CAD in Textiles is really dominating with its exclusive features and efficiency. CAD helps textile designers to make a new design in a more efficient way within a shorter duration. In every section of Textile, the Weaving CAD, the Printing CAD, the Marker Making CAD etc. are being used.
Generally speaking, computer hardware and software can be described as follows:
Hardware : Computer hardware is the equipment that can be observed. This could include equip-ments such as the monitor, hard-drive, keyboard and mouse. Peripherals can be added to the hard-ware to perform certain tasks and could include plotters, digitizing tables or printers.
Operating systems : An operating system is the vehicle through which the hardware can read the software programmes. These operating systems are used in combination with software programmes. Certain software programmes can only operate on specific operating systems. Examples of operating systems could be Windows, Linux or Mac.
Software : Software programmes are written to perform certain tasks. For example, the software programme, Microsoft Office is generally used, when writing documents. Other software programmes, such as Corel Draw, are used to create or modify graphic images. Generic software programmes are software programmes, which can be used in a number of disciplines. Corel Draw can be used for design in Graphic Design as well as Fashion Design. Dedicated software is written solely for use in a specific discipline. For example Stork is a software programme written exclusively for use in design.
The usefulness of CAD has driven the market to produce specific software for different aspects of textile and apparel manufacturing. If there are software for designing footwear, caps and bags, there are pattern-making software too for fashion industry. There are solutions for sewn goods industry as well as systems for the design of jacquard woven fabrics. The garment pattern designs are even available in home, expert, and professional versions. Precision cutting systems, cutting and plotting systems, pat-tern design, grading and marker making- you name it and there is software for every textile related work- this is IT revolution in textile industry.