1. Additives for Paper
Biomaster antimicrobial additives for Paper
Biomaster for paper is an aqueous dispersion of Silver
Chloride coated Titanium Dioxide particles. The inorganic
nature and small particle size of this product makes it ideal
for use in the preparation of antimicrobial papers.
Biomaster can be applied at the metered size press in the paper-making
process. This ensures optimum utilisation of the additive with minimum
disruption to the manufacturing process.
The high concentration of the antimicrobial active agent in
which
Biomaster provides a release of silver ions on demand, which
in turn safely inhibits microbial growth. The low level of
surfactants contained ensures that thorough coating is carried
out with the minimum risk of foam formation, whilst
maintaining a stable suspension with no flocculation.
The small particle size of the patented product ensures maximum
penetration into the paper web over a wide range of machine speeds, nip
loads, paper surface openness and filler contents.
The Biomaster additive does not affect the basic colour or surface finish of
paper systems in which it is used.
The controlled release of the silver active provides maximum long term
activity.
Copyright © Addmaster 2007
T: +44 (0) 1785 225656 F: +44 (0) 1785 225353 Darfin House, Priestly Court, Staffordshire Technology Park, Stafford. ST18 0AR UK
E: info@addmaster.co.uk W: www.addmaster.co.uk Registered in England No. 3947927 I Addmaster and Biomaster are Registered Trade Marks ®

2. Additives for Paper
Physical Properties
Appearance Aqueous Liquid
Particle size (mean) Suspension of 1.5 – 2 µm particles
Solubility in water Particles are essentially insoluble
Performance
The Biomaster range has been successfully tested against over 50 common
organisms such as MRSA, E.coli, Salmonella, Listeria, Pseudomonas, and
Aspergillus Niger.
Recommended Addition Rates
Biomaster can be used at levels of 0.05% to 0.5% to provide antibacterial
and antifungal protection.
Areas of use include:
• Hospital doctors’ case notes
• Pharmaceutical packaging
• X-ray film archive envelopes
• General Practitioners’ patient records
• Medical device packaging
For further information on addition rates, antimicrobial testing and
branding of the Biomaster range please contact the Addmaster technical
team.
The Department of Health Rapid Review Panel has given a Class 3
accreditation to Biomaster.
Copyright © Addmaster 2007
T: +44 (0) 1785 225656 F: +44 (0) 1785 225353 Darfin House, Priestly Court, Staffordshire Technology Park, Stafford. ST18 0AR UK
E: info@addmaster.co.uk W: www.addmaster.co.uk Registered in England No. 3947927 I Addmaster and Biomaster are Registered Trade Marks ®