Download Print Friendly Version

Take Charge of your Discharge Printing – Part 2 | Screen Printing Guide

We continue the spotlight on Discharge Printing, with William Shorter, Product Manager CPS – Chemicals Products and Services and Liam Stubbings of Pyramid Textiles.

For this part of your guide we have looked at tips and recommended practices for the printing process element of discharge printing.

First, let’s take a look at the considerations needed for selecting the right products:

1. What type of garment material should I choose?

You should only use 100% cotton or a cotton/polyester blend that contains less than 50% polyester. The first stage of discharge printing causes dyes in the cotton fabric to be deactivated and works by a process of ‘bleaching’ the fabric down to its natural colour, a slightly off-white, and this is only feasible with these types of fabrics.  Top tip: to check compatibility, print a correctly mixed proportion of discharge additive and clear base onto your fabric, dry and cure, then look at its appearance. You should see an ivory white look to the print, if however it appears darker or brown in colour then the garment is definitely not suitable.

2. Platen adhesives – aren’t they all good?

We highly recommend a water based platen adhesive for textile Discharge Printing as these offer much greater benefits in use versus aerosol based spray tacks. They are better for the user, your machinery, and the environment and last longer in use, saving you down-time during printing. 
3. What ink should I choose?

Not all discharge inks are the same. Some are designed to give an ultra-low hand (feel) and other inks are formulated to give a slightly harsher feel but with a brighter look. The most important consideration is to understand what visual and tactile result your customer is looking to achieve in the final printed garment. An assured way for both you and your customer to understand and agree on this is to provide swatch samples that demonstrate the range of final effects that are achieved through the use of different inks. 
4. Going Green?

If you’re looking to provide printed garments that are produced using greener sustainable products then you could consider an ink system that is approved by trade associations such as GOTS, Bluesign and OekoTec.

Next let’s look at a couple of process tips for the printing stage:

1. Use the correct amount of squeegee pressure.

In order to obtain a nice bright, soft print, it is important use the correct amount of squeegee pressure.  Too low and you will only get a partial print, too high and you may crush the fabric and smear the image. Top tip: After curing turn the garment inside out and check to see if you can see the image on the inside. If you can this means you have achieved a full level of ink penetration.

2. Get the dryer temperature correct. 

When printing discharge inks, not only the temperature of the dryer but also the length of time the print is in the dryer is of paramount importance. The ink needs to be in the dryer for a minimum of 90 seconds at 160°C. Always double check the temperature that the garment reaches using temperature strips periodically. Never rely solely on the reading of your dryer being accurate especially if it hasn’t been calibrated or serviced recently.

This now leaves you with the question – have I got it right?

Firstly, are the colours vibrant and as expected by the customer? Is the ‘feel’ right and does it meet customer expectations and how durable will the printed image be?

The only viable method to ensure that your garment has been successfully printed and cured is to test it yourself. To do this take one of your printed garments and wash it at the recommended temperature and check that your image is as you expected it to be. 

If you have been able to achieve all of the above, getting it right first time and using safer consumables with low environmental impact, you can give yourself a pat on the back!

We hope that this 2-part guide has helped make clearer the complexities that come with discharge printing and we leave you with just one final piece of advice – please follow the manufacturers’ instructions for your ink, garment, emulsion etc. Best of luck. 

In Part 1 we looked at the key steps to successful Discharge Printing from a screen making perspective.

This 'How To Screen Print' guide was orignally printed on page 46 of the April 2016 edition of Printwear & Promotion.

Please feel free to share this 'How To Screen Print' guide with your friends, on blogs and via social media.

If you have any excellent screen printing hints and tips, please share them in the 'Screen Printers Of The World Unite Community' on Google+ or contact us via technical@cps.eu and maybe we can feature them in a new guide.

For more screen printing guides visit our 'How To Guide' page.

Legal Disclaimer 

Download Print Friendly Version

United Kingdom

CONTACT YOUR LOCAL DEALER:

  • Pyramid Screen Products
  • Unit 8, West Kingsdown Industrial Estate
  • West Kingsdown
  • Sevenoaks
  • Kent CT15 6EL, UK

CONTACT YOUR LOCAL DEALER:

  • Screen Print Supply Ltd
  • 3 The Orchards
  • Cheswick Green
  • Solihull
  • West Midlands B90 4HP
Ireland

CONTACT YOUR LOCAL DEALER:

  • The Screen Machine Supply Company LLP
  • Unit C, Lyon Road
  • Denbigh Industrial Estate
  • Bletchley
  • Milton Keynes, Bucks
  • MK1 1EX
Latvia

CONTACT YOUR LOCAL DEALER:

  • SIA Rigas Sesoma
  • Uriekstes iela 3 
  • LV-1005 Riga
  • Latvia
Norway

CONTACT YOUR LOCAL DEALER:

  • CPS Products & Services Ltd
  • Grove Road
  • Wantage
  • Oxon OX12 7BZ
  • UK
Australia

CONTACT YOUR LOCAL DEALER:

  • Fujifilm Australia Pty Ltd
  • 114 Old Pittwater Road
  • Brookvale
  • NSW 2100
  • Australia
Malaysia

CONTACT YOUR LOCAL DEALER:

  • Amco Sdn Bhd
  • 3, Jalan 5/32A
  • Off Batu 6½
  • Jalan Kepong
  • Malaysia
New Zealand

CONTACT YOUR LOCAL DEALER:

  • Blue Print Imaging Ltd
  • 1, The Inlet
  • Takanini
  • Auckland
  • New Zealand
India

CONTACT YOUR LOCAL DEALER:

  • Gurbaksish Enterprises
  • 10659m Jhandewalan Road
  • Nabi Karim
  • New Delhi 110055
  • India
United States

CONTACT YOUR LOCAL DEALER:

  • Right Source 1
  • 9439 Magnolia Ave.
  • Riverside
  • CA 92503
  • USA

CONTACT YOUR LOCAL DEALER:

  • Litho Supply
  • 1430 Girard Blvd. NE
  • Albuquerque
  • NM 87106
  • USA

CONTACT YOUR LOCAL DEALER:

  • Screen Process of Alabama (AL)
  • 4250 Praytor Way
  • Trussville
  • AL 35173
  • USA

CONTACT YOUR LOCAL DEALER:

  • Tubelite Company, Inc. (AZ )
  • 7310 W. Roosevelt
  • Phoenix
  • AZ 85043
  • USA

CONTACT YOUR LOCAL DEALER:

  • Coastal Supply Company, Inc. (CA )
  • 8650 Argent Street
  • Santee
  • CA 92071
  • USA

CONTACT YOUR LOCAL DEALER:

  • Midwest Sign & Screen Printing Supply, Inc. (CA)
  • 21054 Alexander Court
  • Hayward
  • CA 94545
  • USA

CONTACT YOUR LOCAL DEALER:

  • Nazdar SourceOne (CA)
  • 11821 Western Avenue
  • Garden Grove
  • CA 92841-2119
  • USA

CONTACT YOUR LOCAL DEALER:

  • T.W. Graphics Group (CA)
  • 3323 Malt Avenue
  • City of Commerce
  • CA 90040
  • USA

CONTACT YOUR LOCAL DEALER:

  • Midwest Sign & Screen Printing Supply, Inc. (CO)
  • 5301 Peoria Street, Unit F
  • Denver
  • CO 80239
  • USA

CONTACT YOUR LOCAL DEALER:

  • Garston Screen Printing (CT)
  • 570 Tolland Street
  • East Hartford
  • CT 06108
  • USA

CONTACT YOUR LOCAL DEALER:

  • Nazdar SourceOne (FL)
  • 13160 NW 43rd Avenue
  • Opa Locka
  • FL 33054
  • USA

CONTACT YOUR LOCAL DEALER:

  • Screen Process of Alabama (FL)
  • 8286 Western Way Circle Unit D7-D8
  • Jacksonville
  • FL 32256
  • USA

CONTACT YOUR LOCAL DEALER:

  • Sun Chemical Corporation (FL)
  • 4506-H LB McLeod Rd.
  • Orlando
  • FL 32811
  • USA

CONTACT YOUR LOCAL DEALER:

  • Tubelite Company, Inc. (FL)
  • 102 Semoran Commerce
  • Apopka
  • FL 32703
  • USA

CONTACT YOUR LOCAL DEALER:

  • Tubelite Company, Inc. (FL)
  • 11205 NW 131st Street
  • Miami
  • FL 33178
  • USA
  • Tel: +1 305 883 9070
  • Fax: +1 305 883 9456
  • Tel: 800 505 4900
  • Fax: 800 505 7454
  • Website Details: http://www.tubelite.com

CONTACT YOUR LOCAL DEALER:

  • Nazdar SourceOne (GA)
  • 4260 Peachtree Industrial Blvd.
  • Norcross
  • GA 30071
  • USA

CONTACT YOUR LOCAL DEALER:

  • One Shot Supplies (HI)
  • 815-A Waiakamilo Road,
  • Honolulu
  • HI 96817
  • USA

CONTACT YOUR LOCAL DEALER:

  • Nazdar SourceOne (IL)
  • 1087 N. North Branch Street
  • Chicago
  • IL 60622
  • USA

CONTACT YOUR LOCAL DEALER:

  • Sun Chemical Corporation (IL)
  • 2445 Production Drive
  • St Charles
  • IL 60174
  • USA

CONTACT YOUR LOCAL DEALER:

  • Nazdar SourceOne (IN)
  • 2910 Fortune Circle West, Suite C
  • Indianpolis
  • IN 46241
  • USA

CONTACT YOUR LOCAL DEALER:

  • Tubelite Company, Inc. (IN)
  • 3875 Culligan, Unit H
  • Indianpolis
  • IN 46218
  • USA
  • Tel: +1 317 352 9366
  • Fax: +1 317 352 1637
  • Tel: 800 505 4900
  • Fax: 800 505 7454
  • Website Details: http://www.tubelite.com

CONTACT YOUR LOCAL DEALER:

  • Nazdar SourceOne (KS)
  • 8501 Hedge Lane Terrace
  • Shawnee
  • KS 66227
  • USA

CONTACT YOUR LOCAL DEALER:

  • Commercial Screen Supply (MA)
  • 6 Kiddie Drive
  • Avon
  • MA 02322
  • USA

CONTACT YOUR LOCAL DEALER:

  • Etchomatic, Inc. (MA)
  • 179 Olde Canal Drive
  • Lowell
  • MA 01851
  • USA

CONTACT YOUR LOCAL DEALER:

  • Garston Screen Printing (MA)
  • 21 Parkridge Road
  • Haverhill
  • MA 01835
  • USA

CONTACT YOUR LOCAL DEALER:

  • Lambert Company Inc (MA)
  • 25 Walpole Park South, Unit 1A
  • Walpole
  • MA 02081
  • USA
  • Tel: +1 781 628 8150
  • Fax: +1 781 440 0874
  • Tel: 800 292 2900

CONTACT YOUR LOCAL DEALER:

  • Sun Chemical Corporation (MA)
  • 800 Hingham St. Suite 2
  • Rockland
  • MA 02370
  • USA

CONTACT YOUR LOCAL DEALER:

  • Martin Supply Co. Inc (MD)
  • 2740 Loch Raven Rd
  • Baltimore
  • MD 21218
  • USA

CONTACT YOUR LOCAL DEALER:

  • Nazdar SourceOne (MI)
  • 687 Minnesota Avenue
  • Troy
  • MI 48083
  • USA

CONTACT YOUR LOCAL DEALER:

  • Midwest Sign & Screen Printing Supply, Inc. (MN)
  • 45 East Maryland Avenue
  • St Paul
  • MN 55117
  • USA

CONTACT YOUR LOCAL DEALER:

  • Sun Chemical Corporation (MN)
  • 4463 White Bear Parkway 102
  • White Bear Lake
  • MN 55110
  • USA

CONTACT YOUR LOCAL DEALER:

  • Midwest Sign & Screen Printing Supply, Inc. (MO)
  • 1806 Vernon Street
  • N. Kansas City
  • MO 64116
  • USA

CONTACT YOUR LOCAL DEALER:

  • Nazdar SourceOne (MO)
  • 4850 New Baumgartner Road
  • St Louis
  • MO 63026
  • USA

CONTACT YOUR LOCAL DEALER:

  • Nazdar SourceOne (NC)
  • 7001-C Cessna Drive
  • Greensboro
  • NC 27409
  • USA

CONTACT YOUR LOCAL DEALER:

  • Photochemical Systems (NC)
  • 105 Forest Drive
  • Knightdale
  • NC 27545
  • USA

CONTACT YOUR LOCAL DEALER:

  • Tubelite Company, Inc. (NC)
  • 10700 Twin Lakes Parkway
  • Charlotte
  • NC 28269
  • USA
  • Tel: +1 704 875 3117
  • Fax: +1 704 875 8912
  • Tel: 800 505 4900
  • Fax: 800 505 7454
  • Website Details: http://www.tubelite.com

CONTACT YOUR LOCAL DEALER:

  • Midwest Sign & Screen Printing Supply, Inc. (NE)
  • 9313 "J" Street
  • Omaha
  • NE 68127
  • USA

CONTACT YOUR LOCAL DEALER:

  • Nazdar SourceOne (NJ)
  • 7055 Central Highway
  • Pennsauken
  • NJ 08019
  • USA

CONTACT YOUR LOCAL DEALER:

  • Sun Chemical Corporation (NJ)
  • 500 Industrial Avenue
  • Teterboro
  • NJ 07608
  • USA

CONTACT YOUR LOCAL DEALER:

  • Tubelite Company, Inc. (NJ)
  • 300 Park Street
  • Moonachie
  • NJ 07074
  • USA

CONTACT YOUR LOCAL DEALER:

  • Commercial Art Supply (NY)
  • 935 Erie Blvd
  • East Syracuse
  • NY 1320
  • USA

CONTACT YOUR LOCAL DEALER:

  • Garston Screen Printing (NY)
  • 180 Commerce Drive
  • Rochester
  • NY 14623
  • USA

CONTACT YOUR LOCAL DEALER:

  • Reich Supply Co., Inc. (NY)
  • 2 Campion Road
  • New Hartford
  • NY 13413
  • USA

CONTACT YOUR LOCAL DEALER:

  • Multicraft Inc. (OH)
  • 4701 Lakeside Ave.
  • Cleveland
  • OH 44114
  • USA

CONTACT YOUR LOCAL DEALER:

  • Nazdar SourceOne (OH)
  • 3905 Port Unin Blvd.
  • Fairfield
  • OH 45014
  • USA

CONTACT YOUR LOCAL DEALER:

  • Tubelite Company, Inc. (OH)
  • 1224 Refugee Lane
  • Columbus
  • OH 43207
  • USA
  • Tel: +1 614 443 9734
  • Fax: +1 614 443 0201
  • Tel: 800 505 4900
  • Fax: 800 505 7454
  • Website Details: http://www.tubelite.com

CONTACT YOUR LOCAL DEALER:

  • Industrial Screen & Sign Supply (OK)
  • 5432 S 103 E. Avenue
  • Tulsa
  • OK 74146
  • USA

CONTACT YOUR LOCAL DEALER:

  • Midwest Sign & Screen Printing Supply, Inc. (OR)
  • 5035 N.W. Front Avenue
  • Portland
  • OR 97210-1105
  • USA

CONTACT YOUR LOCAL DEALER:

  • Tubelite Company, Inc. (TN)
  • 3111 Bellbrook Drive
  • Memphis
  • TN 38116
  • USA
  • Tel: +1 901 396 8320
  • Fax: +1 901 396 4648
  • Tel: 800 505 4900
  • Fax: 800 505 7454
  • Website Details: http://www.tubelite.com

CONTACT YOUR LOCAL DEALER:

  • Sun Chemical Corporation (TX)
  • 1505 109th Street
  • Grand Praire
  • TX 75050
  • USA

CONTACT YOUR LOCAL DEALER:

  • Midwest Sign & Screen Printing Supply, Inc. (UT)
  • 1160 S. Pioneer Road, Suite 2
  • Salt Lake City
  • UT 84104-3743
  • USA

CONTACT YOUR LOCAL DEALER:

  • Regional Supply Inc (UT)
  • 4517 W 1730 S Ste 6451
  • Salt Lake City
  • UT 84104
  • USA

CONTACT YOUR LOCAL DEALER:

  • Midwest Sign & Screen Printing Supply, Inc. (WA)
  • 401 Evans Black Drive
  • Seattle
  • WA 98188-2912
  • USA

CONTACT YOUR LOCAL DEALER:

  • Midwest Sign & Screen Printing Supply, Inc. (WI)
  • 10061 South 54 Street
  • Franklin
  • WI 53132
  • USA
South Africa

CONTACT YOUR LOCAL DEALER:

  • CPS Products & Services Ltd
  • Grove Road
  • Wantage
  • Oxon OX12 7BZ
  • UK
Japan

CONTACT YOUR LOCAL DEALER:

  • Mino International Ltd
  • 4-47-54 Nukui
  • Nerima-Ku
  • Tokyo 176-0021
  • Japan
Singapore

CONTACT YOUR LOCAL DEALER:

  • CTS Industries Pte Ltd
  • 125 Pioneer Rd
  • Singapore 639592
Brazil

CONTACT YOUR LOCAL DEALER:

  • Porto Silk Comercio e Importacao LTDA
  • Rua Sao Carlos, 977
  • Porto Alegre, RS
  • 90220-121
  • Brazil
  • Tel: +55 51 3332 0125
  • Fax: +55 51 3337 4766

CONTACT YOUR LOCAL DEALER:

  • Dupiza Com. Ltda
  • Rua Branco De Moraes 588
  • Chac. Santo Antonio
  • Sao Paulo 04718-010
  • Brazil
Canada

CONTACT YOUR LOCAL DEALER:

  • Screentec Corporation (ON)
  • 930 Westport Crescent
  • Missisauga, Westport
  • L5T 1G1
  • Canada
Chile

CONTACT YOUR LOCAL DEALER:

  • GMS Prod Graficos Ltda
  • Santa Filomena 66 Recoleta
  • Santiago 4
  • 6622882 Chile
Costa Rica

CONTACT YOUR LOCAL DEALER:

  • Insumos Serigráficos
  • Av. 2 Calle 24-26
  • San Jose 4175-1000
  • Costa Rica
Dominican Republic

CONTACT YOUR LOCAL DEALER:

  • MacDermid Autotype Inc.
  • 1675 Winnetka Circle
  • Rolling Meadows
  • USA
Indonesia

CONTACT YOUR LOCAL DEALER:

  • CHARLIE sps
  • JL. Lingkar Luar Barat No. 8A
  • Duri Kosambi Cengkareng
  • Jakarta 11750
  • Indonesia
Jamaica

CONTACT YOUR LOCAL DEALER:

  • MacDermid Autotype Inc.
  • 1675 Winnetka Circle
  • Rolling Meadows
  • Winnetka
  • USA
Korea

CONTACT YOUR LOCAL DEALER:

  • CY International Co Ltd
  • T309, Tech Center, SK N Technopark
  • Sangdaeon-Dong, Joonwon-Gu
  • Seongnam-Si
  • South Korea

CONTACT YOUR LOCAL DEALER:

  • Hwain C & C
  • Bucheon Technopark
  • 301-504 Samjeon
  • Ojeong-Gu Bucheon-Si
  • South Korea
Panama

CONTACT YOUR LOCAL DEALER:

  • T-Shirts InterAmerica, S.A.
  • Apartado 0819-01189
  • Avenida Domingo Diaz (Via Tocumen)
  • 1189 Panama
  • Republica de Panama
Puerto Rico

CONTACT YOUR LOCAL DEALER:

  • MacDermid Autotype Inc.
  • 1675 Winnetka Circle
  • Rolling Meadows
  • USA

CONTACT A CPS TECHNICAL EXPERT


Name: William Shorter

Mobile Number: +44 7831 109181

Email: william.shorter@macdermid.com