KENYA STANDARD  DKS  606:2021 
 ICS 59.080  
Third    Edition  
  
 © KEBS 2021  
 Bedsheets made from blended 
polyester/cellulosic fabric or polyester 
and cellulosic combination fabric -
Specification  
 
 
 
 
DKS 606 :2021 
ii © KEBS 2021 – All rights reserved  
 TECHNICAL COMMITTEE REPRESENTATION  
The following organizations were represented on the Technical Committee:  
Moi university –Department of Industrial and Textile Engineering  
National Industrial Training Authority (NITA)  
Ministry of Industrialization and Trade  
Spinknit  Nakuru Ltd  
Technical University of Kenya(TUK)  
RIVATEX  Ltd 
Royele suits Ltd  
Egerton University — Department of Applied Community Development Studies  
Kantoor Brands Inc Ltd  
Kenyatta University  
Intertek  
Weavers worth Ltd  
Mbagathi Hospital  
Bedi Investment Ltd Nakuru  
Alpha Knits Ltd  
One-Way Ltd  
Kenya Bureau of Standards — Secretariat  
 
REVISION  OF KENYA STANDARDS  
In order to keep abreast of progress in industry, Kenya Standards shall be regularly reviewed.  Suggestions for 
improvements to published standards, addressed to the Managing Director, Kenya Bureau of Standards, are 
welcome.  
© Kenya Bureau of Standards, 2021 
Copyright. Users are reminded that by  virtue of Section 25 of the Copyright Act, Cap. 130 of 2001 of  the Laws of Kenya, copyright subsists 
in all Kenya Standards and except as provided under Section 25 of this Act, no Kenya Standard produced by Kenya Bureau of Sta ndards 
may be reproduced, sto red in a retrieval system in any form or transmitted by any means without prior permission in writing from the 
Managing Director.   KENYA STANDARD  DKS 606 :2021 
ICS 59.080 
Third   Edition  
 
© KEBS 2021  – All rights reserved  iii 
  Bedsheets made from blended 
polyester/cellulosic fabric or polyester and 
cellulosic combination Fabric -
Specification  
 
 
  
Kenya Bureau of Standards, Popo Road, Off Mombasa Road,  
P.O. Box 54974 - 00200,  Nairobi, Kenya  
 +254 020 6948000, + 254 722202137, + 254 734600471  
 info@kebs.org  
 @KEBS_ke  
 kenya bureau of standards (kebs)  
  
DKS 606 :2021 
iv © KEBS 2021 – All rights reserved  
 Foreword  
 
This Kenya Standard was prepared by the Technical Committee on Woven Fabrics under the direction of Textile 
Industry Standards Committee and it is in accordance with the procedures of the Bureau.  
 
Fabrics manufactured from blended polyester/cellulosic yarns or a combination of polyester warp yarns and 
cellulosic or blended polyester/cellulosic weft yarns are commonly used and are acceptable locally for making -
up bedsheets.  These fabrics are manufac tured in varying weave constructions and fabric fibre composition and 
proportions, resulting in varying fabric characteristics.  
 
This standard takes into consideration these variations and specifies only the minimum essential quality 
characteristics for th ese fabrics and the make -up requirements for bedsheets made therefrom.  
 
In this third edition of this standard, Dimensional stability and test methods has been revised on Table1 and 
Test methods in Table 2 has been updated.  
This third edition of the standa rd cancels and replaces KS 606:1993 . 
 
In the development of this standard, reference was made to the following document:  
 
 BS 5815 :  Part 1:  1989,  Specification for sheeting sheets and pillowslips.  
 
Acknowledgement is hereby made for the assistance received from this document.  
from these sources.  
 DKS 606 :2021   
 
© KEBS 2021– All rights reserved   
  
1. SCOPE  
 
This Kenya Standard specifies the requirements for bedsheets made from blended polyester  and 
cellulosic blended  yarns fabric or polyester and cellulosic combination fabric.  
 
2.  Normative references  
 
The following referenced documents referred to in the text in such a way that some or all of their content 
constitutes requirements of thi s document. For dated references, only the edition cited applies. For undated 
references, the latest edition of the referenced document (including any amendments) applies . 
 
3.  TERMS AND DEFINITIONS  
 
For the purpose of this standard, the following definitions shall apply:  
 
3.1 cellulosic fibre — Cellulosic fibre shall refer to cotton fibres or viscose fibres or polynosic fibres or 
any other regenerated fibre based on cellulose.  
 
3.2 polyester and cellulosic combination fabric  — A fabric woven from 100 per cent polyester warp 
yarns and 100 per cent cellulosic or polyester  and cellulosic blended weft yarns or vice versa.  
 
3.3 polyester  and cellulosic blended fabric  — A fabric manufactured from polyester and cellulosic 
blended   staple spun yarns.  
 
4.  REQUIREMENTS  
 
4.1 General requirements   
 
4.1.1  Fabric Type  — The fabric shall either be blended polyester  and cellulosic or a combination of polyester 
and cellulosic fabric.   
 
4.1.2  Properties  — The fabric properties shall be as specified in Table 1.  
 
4.1.3  Selvedges  — The fabric selvedges when visually examined shall be straight and firm.  
 
4.1.4 Sewing Thread  — The sewing thread shall either be 100 per cent polyester or polyester/cellulosic blend 
of ticket number 100 or 120, complying with KS 08 -479:  Part 2.  The thread shall be of the same colour 
as the bedsheet and in case of coloured  bedsheets of the same  colour fastness.  
 
4.1.5  End Hems  — Bedsheet shall have a minimum of 2 cm end hems.  A minimum of 0.5 cm of the raw 
edges shall be turned in.  
 
4.1.6  Joined Bedsheets  — A bedsheet of width more than 155 cm may be joined on one side or both sides.  
No bedshe et shall have more than two seams within the body.  
 
The seams shall be neatly turned in so that no raw edges are exposed and stitched with a stay seam.  
The ends of all stitching thread shall be trimmed and loose ends removed.  
 
4.1.7  Sewing  — The sewing s hall be of even tension throughout and the ends shall be finished securely and 
neatly.  The number of stitches per cm shall be not less than 4.5.  
 
 
 
  
© KEBS 2021  – All rights reserved  iii 
  5.0    Specific  requirements  
 
5.1 Colour Fastness  — The colour fastness of the coloured  fabrics shall be as specified in Table 2.  
 
5.2 Fabric Fibre Composition and Proportion  — The fabric fibre composition and proportion shall be as 
declared in 6.1, c) subject to a tolerance of ± 5 per cent.  This shall be determined in accordance with 
KS 1833-11 
 
5.3 Fabric Grade  — The fabrics used for the manufacture of bed sheets shall be of grades not lower than 
B in accordance with KS EAS 253 -1 
 
 
   
iv © KEBS 2021 – All rights reserved  
  
TABLE 1.  FABRIC PROPERTIES  
 
PROPERTY  REQUIREMENT  TEST METHOD  
Mass per unit area, g/m2, min.   110 KS ISO 3801  
Breaking force, N, min.  Warp way  600 KS ISO 13934 -1 Weft way  400 
Tear resistance, N, min.  Warp  50 KS ISO 13937 -4 
Weft 40 
Resistance to yarn slippage, N, min. 
(either way)   100 for seam opening of  
   3 mm  KS 08 -893, 
Part 1  
Resistance to pilling   Not lower than grade 4  KS 08 -438 
Dimensional changes  in shrinkage 
after 1 washing, max.   Warp   
- 3 % KS ISO 5077  
KS ISO 6330  
KS ISO 3759  weft -3% 
Dimensional changes in shrinkage 
after dry cleaning ,max  
  warp  -1% KS ISO 3175 -1 
Weft  -1% 
Filling, max.   2 % KS 264 
pH  5 ± 1  KS ISO 3071  
 
 
TABLE 2.  COLOUR FASTNESS REQUIREMENTS  
 
Characteristic   NUMERICAL RATING, min.  TEST METHOD  
Light  Colour change  Staining  KS ISO 101 -B01 
KS ISO 101 -B02 6 — 
Rubbing  Dry — 4  
KS ISO 101 -X12 Wet — 4 
Perspiration,  Acid  5 5 
KS ISO 105 E04  Alkali  5 5 
Washing  5 5 KS ISO 105 C10  
Peroxide washing  4 4 KS ISO 105 N02  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
© KEBS 2021  – All rights reserved  v 
  5.4  Finished Dimensions  — The minimum dimensions of the finished bedsheet shall be as in Table 3.  
 
 The dimensions shall be determined in accordance with KS ISO 22198  
 
TABLE 3.  FINISHED BEDSHEET DIMENSIONS  
 
WIDTH, cm  LENGTH, cm  WIDTH, cm   
LENGTH, cm  
 
 
230 
 
230 
 
185 
 
155 
 275 
 
255 
 
230 
 
230 138 
 
138 
 
125 
 
  
230 
 
205 
 
185 
 
 
 
 
 
 
6  PACKAGING  
 
6.1 Pieces  — Each piece or pair of bedsheet(s) shall be neatly and securely wrapped in polythene papers 
to prevent contamination or damage.  
 
6.2 Bulk  — The neatly and securely wrapped pieces shall be packed in cartons or boxes.  
 
7. MARKING  
 
7.1 Pieces  — Each piece or pair of bedsheet(s) shall have a label securely attached bearing the following 
information:  
 
(a) Manufacturer’s name or registered trade mark;  
 
(b) Type of fabric in accordance with 4.1.1 ; 
 
(c) Fabric fibre composition and proportion;  
 
(d) Size of the bedsheet in cm; 
 
(e) Care instructions in accordance with KS ISO 3758  
 
(f) country of manufacture  
 
7.2 Bulk Containers — Each bulk container shall have a label securely attached, bearing the following 
information:  
 
(a) Manufacturer’s name or registered trade mark;  
 
(b) Type of fabric;  
 
(c) Size of the bedsheets in cm;  
 
(d) Quantity of pieces;  
 
(e) Country of manufacture  
 
 
  
vi © KEBS 2021 – All rights reserved