1. Trang chủ
  2. » Giáo Dục - Đào Tạo

10 1 0
Tài liệu được quét OCR, nội dung có thể không chính xác

Đang tải... (xem toàn văn)

THÔNG TIN TÀI LIỆU

Thông tin cơ bản

Định dạng
Số trang 10
Dung lượng 2,79 MB

Nội dung

Trang 5

Physical testing of textiles B P Saville

The Bextile Institue

Trang 6

Published by Woodhead Publishing Limited in association with The Textile Institute Woodhead Publishing Limited

80 High Street, Sawston, Cambridge CB22 3HJ, UK www.woodheadpublishing.com

www.woodheadpublishingonline.com

Woodhead Publishing, 1518 Walnut Street, Suite 1100, Philadelphia, PA 19102-3406, USA

Woodhead Publishing India Private Limited, G-2, Vardaan House, 7/28 Ansari Road, Daryaganj, New Delhi ~ 110002, India

www woodheadpublishingindia.com

First published 1999, Woodhead Publishing Limited Reprinted 2000, 2002, 2003, 2007, 2009, 2012 ‘© 1999, Woodhead Publishing Limited The author has asserted his moral rights

This book contains information obtained from authentic and highly regarded sources Reprinted material is quoted with permission, and sources are indicated Reasonable efforts have been made to publish reliable data and information, but the author and the publisher cannot assume responsibility for the validity of all materials Neither the author nor the publisher, nor anyone else associated with this publication, shall be liable for any loss, damage or liability directly or indirectly caused or alleged to be caused by this book

Neither this book nor any part may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, microfilming and recording, or by

any information storage or retrieval system, without permission in writing from Woodhead Publishing Limited

‘The consent of Woodhead Publishing Limited does not extend to copying for general distribution, for promotion, for creating new works, or for resale Specific permission must be

obtained in writing from Woodhead Publishing Limited for such copying

Trademark notice: Product or corporate names may be trademarks or registered trademarks, and are used only for identification and explanation, without intent to infringe

British Library Cataloguing in Publication Data

A catalogue record for this book is available from the British Library

ISBN 978-

ISBN 978- 85573-367-1 (print) 84569-015-1 (online)

Trang 7

Contents Preface Acknowledgements Introduction

Reasons for textile testing

Checking raw materials

Monitoring production

Assessing the final product

Investigation of faulty material

Product development and research Standardisation of testing

Variation in the material

Variation caused by the test method Sampling

Terms used in sampling Fibre sampling from bulk

Trang 8

vi 2 21 2.2 221 222 2322 23 2.3.1 23.2 2343 234 24 241 2.4.2 243 25 2.6 3 3.1 3.2 3.2.1 3.2.2 3.2.3 3.2.4 3.2.5 3.2.6 3.2.7 3.2.8 3.2.9 3.2.10 3.3 3.3.1 3.4 3.4.1 as 3.5.1 3.5.2 lô 3.5.4 Contents Textiles and moisture Introduction Effect of moisture on physical properties Dimensional Mechanical Electrical Atmospheric moisture Vapour pressure Relative humidity Standard atmosphere

Measurement of atmospheric moisture Regain and moisture content

Regain — humidity relations of textiles Factors affecting the regain

Methods of measuring regain

Correct invoice weight

Control of testing room atmosphere References Fibre dimensions Fibre fineness Fineness measurement Gravimetric

Fibre fineness by projection microscope Fibre fineness by the airflow method Cotton fineness by airflow

Cotton maturity

1C/Shirley fineness and maturity tester

Optical fibre diameter analyser Light-scattering methods Vibration method Wool quality Fibre length Mean length

Methods of measurement: direct methods

WIRA fibre length machine

Methods of measurement: tuft methods Cotton grading

Comb sorter

Trang 9

3.5.5 3.5.6 3.6 41 411 412 4.143 414 4.1.5 4.2.1 422 443.1 432 4343 43.4 441 4.4.2 4443 45.1 46 4.6.1 4.6.2 SA 5.21 5.2.2 523 5.2.4 5.2.5 Contents WIRA fibre diagram machine Almeter High-volume instruments General reading References Yarn tests Linear density Direct system Indirect system Folded yarns

Measuring linear density

Linear density from a fabric sample Twist Level of twist Measuring twist Yarn evenness Visual examination

Cut and weigh methods

Trang 10

5.8.1 5111 5.11.4 Contents Breaking length Elongation Strain Extension percentage Gauge length Force elongation curve Yield point Modulus Work of rupture Time dependence Elastic recovery

Factors affecting tensile testing Type of testing machine

Specimen length

Rate of loading and time to break

Effect of humidity and temperature

Previous history of the specimen Clamping problems Fibre strength Single fibre strength Bundle strength Yarn strength

‘Yarn strength: single strand method Yarn strength: skein method Fabric strength

Strip strength Grab test Tear tests

Measuring tearing strength Single rip tear test

Wing rip tear test Elmendorf tear tester

Bursting strength

Diaphragm bursting test

Ball bursting strength

Stretch and recovery properties Seam strength

Seam slippage

Seam slippage tests Fixed load method Upholstery seam slippage General reading

Ngày đăng: 22/10/2022, 12:01

TÀI LIỆU CÙNG NGƯỜI DÙNG

  • Đang cập nhật ...