https://www.avient.com/knowledge-base/article/avoid-these-three-mistakes-get-most-color?rtype[]=1164
Taking a savvy approach to both liquid and solid color maximizes these benefits and helps processors to stay competitive.
Assuming that the choice between solid and liquid colorants is a black and white decision
Why it’s a mistake: Solid and liquid colorants each have certain applications where they make the most sense in terms of coloring effects, efficiency, and results.
https://www.avient.com/knowledge-base/article/getting-more-efficient-polymer-colorants?rtype[]=1164
For those of you using solid colorants, consider if a liquid solution would be appropriate.
There are a number of benefits to using liquid that may surprise you.
Liquid color can provide up to a 50% reduction in changeover time compared to solid.
https://www.avient.com/sites/default/files/2021-10/microbial-susceptibility-of-various-polymers-and-evaluation.pdf
To reduce the incidence of device-associated infections,
antimicrobial technologies have been utilized in a variety
of ways ranging from bulk-imbedded additives to sur-
face grafting techniques.[13,14] In particular, silver-based
additive technologies are frequently explored for
healthcare applications due to their favorable toxicological
profiles and broader regulatory approvals, while silver
nanoparticles with controlled, long-term release profiles
continue to be a very active and promising area of biomedi-
cal research.[15-19] In textile segments such as sports active-
wear, biocides are used to prevent the growth of odor-
causing bacteria from perspiration.[20,21] Additionally,
high-end recreational products such as boats utilize bio-
cides to preserve the aesthetics of PVC products used for
seat covers since bacterial growth may lead to pink staining
caused by specific bacterial metabolites.[22,23] With respect
to the mechanism of action, many antimicrobial products
work by attacking enzymes common to a variety of
microbes, interfering with membrane transport processes
(e.g., importing environmental copper into the cells) as
well as interfering with iron metabolism pathways.[24,25]
Herein, an assortment of both rigid and flexible resins/
compounds will be evaluated for susceptibility to determine
whether particular resin chemistries or compounds are
inherently vulnerable to microbial growth and subsequent
degradation or other deleterious effects.
present broad-spectrum efficacy, a more favorable eco-
nomic position relative to alternative transition metal
counterparts (i.e., silver and copper-based antimicro-
bials), and have a long history of use in anti-dandruff
shampoo and soaps.[29,30] For these reasons, ZPT was
elected for further study.
This is in
contrast to literature reports wherein various silver and
zinc-based antimicrobial compounds tend to demonstrate
higher efficacy toward E. coli than S. aureus; however,
several reports have also observed an enhancement in
efficacy toward S. aureus for ZPT, and it should be noted
that the minimum inhibitory concentration of ZPT in
solution is comparable for these two bacteria.[18,19,31-34]
Several physical and mechanical properties were evalu-
ated to detect variations when compounding ZPT into the
various Versaflex™ and OnFlex™ TPE products.