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Mechanical Finishes Mechanical finishes affect the size and appearance of fabric. They can give the fabric surface a smooth and flat look, or a napped.

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Presentation on theme: "Mechanical Finishes Mechanical finishes affect the size and appearance of fabric. They can give the fabric surface a smooth and flat look, or a napped."— Presentation transcript:

1 Mechanical Finishes Mechanical finishes affect the size and appearance of fabric. They can give the fabric surface a smooth and flat look, or a napped or flocked texture. Mechanical finishes affect the size and appearance of fabric. They can give the fabric surface a smooth and flat look, or a napped or flocked texture.

2 Drying and Stretching After cloth are made they are given its correct width, and length, by drying and stretching. Doing this gives fabric its final shape by it through heat and sometimes moisture while it is in a stretched position. After cloth are made they are given its correct width, and length, by drying and stretching. Doing this gives fabric its final shape by it through heat and sometimes moisture while it is in a stretched position.

3 Compressive Shrinking& Calendering Compressive shrinking is a process of shrinkage control of fabrics made of cellulosic fibers. It assures people that the product will shrink less. Compressive shrinking is a process of shrinkage control of fabrics made of cellulosic fibers. It assures people that the product will shrink less. Preshrinking is done with heat and moisture. Preshrinking is done with heat and moisture.Calendering Calendering presses the surface of fabrics flat with heat and pressure. Calendering can also emboss the fabric which leaves a permanent raised and dented design.

4 Singeing & Cutting& Brushing Singeing is passing the cloth over a series of gas jets, flame or heated copper plates to singe off any protruding fibers. This gives a smooth, uniform surface. Singeing is passing the cloth over a series of gas jets, flame or heated copper plates to singe off any protruding fibers. This gives a smooth, uniform surface.Cutting Cutting is done for some napped fabrics, such as corduroy, to create a cut pile. Brushing Brushing The brushing process is also called napping, raises the fabric surface by pulling up fiber ends. Brushing produces a soft, fuzzy and napped finish.

5 Shearing, Pressing& Beetling Shearing trims any fiber or yarn ends that are sticking out from the fabric. If it is done close to the fabric surface, it causes the weave to become more distinct. Shearing trims any fiber or yarn ends that are sticking out from the fabric. If it is done close to the fabric surface, it causes the weave to become more distinct.Pressing The pressing procedure places the fabric between heavy, electrically heated plates or cylinders. Beetling In beetling, linen or cotton fabric is pounded to give a flat effect. It gives a harder surface with increased sheen.

6 Quiz 1. What kind of looks do mechanical finishes give to fabric? They can give the fabric surface a smooth and flat look, or a napped or flocked texture. 2. What is singeing? Singeing is passing the cloth over a series of gas jets, flame or heated copper plates to singe off any protruding fibers Singeing is passing the cloth over a series of gas jets, flame or heated copper plates to singe off any protruding fibers


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