Plasticizer color

FWWMR Finish. The abbreviation for fire, water, weather, and mildew resistance, FWWMR, has been used to describe treatment with a chlorinated organic metal oxide. Plasticizers, coloring pigments, fiUers, stabilizers, or fungicides usuaUy are added. However, hand, drape, flexibUity, and color of the fabric are more affected by this type of finish than by other flame retardants. Add-ons of up to 60% are required in many cases to obtain... 

In a flexible PVC compound, ingredients in the recipe are chosen based on cost and/or thein contribution to physical and other properties and performance. Typical ingredients (16,17) are stabilizers, fillers, plasticizers, colorants, and lubricants. 

Pigments are available ia a number of commercial forms including dry powders (either surface treated or untreated), presscakes, flushed colors (thick pastes), fluidi2ed dispersions (pourable pastes), resia predispersed pigments (powders), and plastic color concentrates or master batches (granules) (see PiGLffiNTDISPERSIONS). 

Table 5 Changes in the crystallite size of some polycyclic pigments in coatings or plastics coloration as a result of heat exposure (calculated from the X-ray diffraction spectra).

The light fastness requirements of plastic colorations are met by many organic pigments but are similarly dependent on the ratio of colored pigment to titanium dioxide. The stability of the plastic used should also be taken into consideration here. 

P.Y.193 is tinctorially equal weak in plastics. Colorations of HDPE in 1/3 SD (1% TiOz) require 0.43% pigment, the heat stability of the colorations reaches 300°C. 

All the properties are influenced by the additives used with the thermoplastic matrices, notably the reinforcements but also stabilizers, plasticizers, colorants and others. 

The reference for the measurements is not always stable. In the case study Extruded plastics color (Section 4.7), the white reference tile was checked about once a week for accuracy. 

A very useful feature of plastics colored with cadmium pigments is the dimensional stability of injection-molded parts with a large surface area. The combination of these properties is not matched by any other class of colorant. 

Plasticizer coloration to the cured item. Can be organic or inorganic. A compounding material used to enhance the deformability of a polymeric compound. 

Compounding—Processing operation in which fillers, plasticizers, coloring agents, and other additives are mixed with a polymer, often in an extrude to obtain desired properties. 

Specialty Plastics, Colorants Polymer Alloys Electronic Materials... 

The plastic color standard is the reference color control to which all color match trials are visually compared. In some cases, the standard must be returned with the match or after the match is approved. The ideal situation is to keep the color standard, labeled with the customer identification number, the in-house color number, date, and polymer type, if known. Handling, storage, age, texture, gloss, shape, size, and physical form all determine the condition of the color standard both as received and for future reference purposes. 

A visual, deductive assessment process that compares each color match trial with the plastic color standard followed by adjustments to the next trial is recommended. One good technique requires the color matcher to ask and answer the following questions after each trial, always keeping in mind all requirements noted in the CMR form ... 

The discussion here is limited to the following topics that concern photochromic classes that are potential plastic colorants chemical types or classification, manufacture, activation processes, attributes, and industrial usage. 

The goal of this chapter is to provide the plastics color formulator with a basic system of gathering the information and materials necessary to produce colorant systems that meet customer requirements. The chapter will not be a discussion of specific colorant properties, as this subject is covered in other chapters. Instead, it will provide a method to aid in the correct selection of colorants and to create an acceptable match quickly. Getting the colorant system approved on the first submittal is always quicker and better than having to resubmit. 

Let us consider color match quality. The color formulator should ask the customer if the closeness of a match to the color target is the highest priority. Since there are hundreds of colorants available for the color formulator to select from, more than one possible combination of colorants may produce an acceptable match. Is the best, nonmetameric match of most importance to the customer and application If a perfect, nonmetameric match is not possible, which is often the case when trying to match plastic colorant systems to color targets in paint, ink, ceramic systems, or plastic media, will the customer accept some metamerism Also what light source will be the customer s preference when judging a slightly metameric match ... 

Opportunity. A three-color concentrate-two-component plastic colorants A, B, and C and components D and E are mixed, then injection molded to form a dimensional product.The customer is pleased with dimensional characteristics but has noted some increased color variance to a more positive DH value in recent lots. While none of the lots has exceed the 0.4 maximum specification, all of the most recent shipment was at or near that tolerance. 

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