| 词条 | Plastic colorant | |||||||||||||||
| 释义 |
The colorant must satisfy various constraints, for example, the compound must be[3] chemically compatible with the base resin, be a suitable match with a color standard (see e.g. International Color Consortium), be chemically stable, which in this case means being able to survive the stresses and processing temperature (heat stability) in the fabrication process and be durable enough to match the life duration of the product. The parameters of the compound vary with a desired effect, which may include the final product being pearlescent, metallic, fluorescent, phosphorescent, thermochromic or photochromic.[4] The exact chemical formula will furthermore depend on the type of application: general purpose, food contact item, toy, package subject to CONEG,[5] etc.[4] Different methods for delivering colorants in molding plastics include masterbatches (concentrates), a method which, which involves a concentrate being separated into resin, cube blends ("salt & pepper mixes" - dry blending) which are natural polymers, already sprayed into natural polymers, surface coating, and precolored resins, which involve using precolored materials to make manufacturing cheaper.[6][7] Examples
See also
References1. ^{{cite web | author=Nishikants | title=Plastic colorant and its role in plastic industry| website=Share and Discover Knowledge on LinkedIn SlideShare | date=2013-06-28 | url=https://www.slideshare.net/Royceintly/plastic-colorant-and-its-role-in-plastic-industry | ref=harv | access-date=2017-07-18}} {{plastics}}2. ^{{cite web | title=Plastic Colorants Guide for Injection Molded Parts | website=RevPart | date=2016-01-26 | url=https://revpart.com/using-plastic-colorants/ | access-date=2017-07-18}} 3. ^{{cite web | last=Sepe | first=Michael | title=Working with Color Concentrates | website=Plastics Technology | date=2012-01-28 | url=http://www.ptonline.com/columns/working-with-color-concentrates | access-date=2017-07-18}} 4. ^1 {{cite web | title=Colorants for Plastic Industry,Dyes for Plastics Industry,Pigments for Plastics Industry | website=Dyes and Pigments, Dyes Manufacturers, Dyes Intermediates, Pigments Suppliers, Wholesale Dyes Intermediates | url=http://dyes-pigments.standardcon.com/colorants-plastic-industry.html | access-date=2017-07-18}} 5. ^http://www.coneg.org/tpch 6. ^{{cite web | title=Methods of Coloring Plastics | website=RTP Company | url=https://www.rtpcompany.com/products/color/modes/ | access-date=2017-07-18}} 7. ^{{cite web | title=Effect of coloring methods on properties of plastics | website=Polyplastics.com | url=https://www.polyplastics.com/en/product/safety/coloring/ | access-date=2017-07-18}} 3 : Plastics additives|Dyes|Pigments |
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