Code of Federal Regulations (alpha)

CFR /  Title 21  /  Part 178  /  Sec. 178.3297 Colorants for polymers.

The substances listed in paragraph (e) of this section may be safely used as colorants in the manufacture of articles or components of articles intended for use in producing, manufacturing, packing, processing, preparing, treating, packaging, transporting, or holding food, subject to the provisions and definitions set forth in this section:

(a) The term colorant means a dye, pigment, or other substance that is used to impart color to or to alter the color of a food-contact material, but that does not migrate to food in amounts that will contribute to that food any color apparent to the naked eye. For the purpose of this section, the term ``colorant'' includes substances such as optical brighteners and fluorescent whiteners, which may not themselves be colored, but whose use is intended to affect the color of a food-contact material.

(b) The colorant must be used in accordance with current good manufacturing practice, including use levels which are not in excess of those reasonably required to accomplish the intended coloring effect.

(c) Colorants in this section must conform to the description and specifications indicated. If a polymer described in this section is itself the subject of a regulation promulgated under section 409 of the Federal Food, Drug, and Cosmetic Act, it shall also comply with any specifications and limitations prescribed by that regulation. Extraction testing guidelines to conduct studies for additional uses of colorants under this section are available from the Food and Drug Administration free of charge from the Food and Drug Administration, Center for Food Safety and Applied Nutrition, 5100 Paint Branch Pkwy., College Park, MD 20740, 240-402-1200

(d) Color additives and their lakes listed for direct use in foods, under the provisions of the color additive regulations in parts 73, 74, 81, and 82 of this chapter, may also be used as colorants for food-contact polymers.

(e) List of substances: ------------------------------------------------------------------------

Substances Limitations------------------------------------------------------------------------Aluminum...............................Aluminum hydrate.......................Aluminum and potassium silicate (mica).Aluminum mono-, di-, and tristearate...Aluminum silicate (China clay).........4-[[5-[[[4-(Aminocarbonyl) phenyl] For use at levels not to exceed

amino]carbonyl]- 2-methoxyphenyl]azo]- 1 percent by weight of

N-(5-chloro-2,4-dimethoxyphenyl)-3- polymers. The finished

hydroxy-2-naphthalene-carboxamide articles are to contact foods

(C.I. Pigment Red 187, CAS Reg. No. only under conditions of use B

59487-23-9). through H described in table 2

of Sec. 176.170(c) of this

chapter.N-[4-(Aminocarbonyl)phenyl]-4-[[1- For use at levels not to exceed

[[(2,3-dihydro-2-oxo-1H-benzimidazol-5- 1 percent by weight of

yl)amino]carbonyl]-2- polymers. The finished

oxopropyl]azo]benzamide (C. I. Pigment articles are to contact food

Yellow 181, CAS Reg. No. 74441-05-7). only under conditions of use B

through H described in table 2

of Sec. 176.170(c) of this

chapter.Anthra(2,1,9-def:(6,5,10- For use at levels not to exceed

d'e'f)diisoquinoline-1,3,8,10(2H,9H)- 1% by weight of polymers. The

tetrone (C.I. Pigment Violet 29; CAS finished articles are to

Reg. No. 81-33-4). contact food only under

conditions of use B through H

as described in Table 2 of

Sec. 176.170(c) of this

chapter.Barium sulfate.........................Bentonite..............................Bentonite, modified with 3-

dimethyldioctadecylammonium ion.1,4-Bis[(2,4,6-trimethylphenyl)amino]- For use at levels not to exceed

9,10-anthracenedione (CAS Reg. No. 116- 0.0004 percent by weight of

75-6). polyethylene phthalate

polymers complying with Sec.

177.1630 of this chapter.3,6-Bis(4-chlorophenyl)-2,5-dihydro- For use only at levels not to

pyrrolo[3,4-c]pyrrole-1,4-dione (C.I. exceed 1 percent by weight of

Pigment Red 254, CAS Reg. No. 84632-65- polymers. The finished

5). articles are to contact food

only under conditions of use B

through H, described in table

2 of Sec. 176.170(c) of this

chapter.4,4'-Bis(4-anilino-6-diethanolamine- For use only in the textile

[alpha]-triazin-2-ylamino)-2,2'- fibers specified in Sec.

stilbene disulfonic acid, disodium 177.2800 of this chapter.

salt.4,4'-Bis(4-anilino-6-methylethanolamine- Do.

[alpha]-triazin-2-ylamino)-2,2'-

stilbene disulfonic acid, disodium

salt.Burnt umber............................Calcium carbonate......................Calcium silicate.......................Calcium sulfate........................Carbon black (channel process, prepared

by the impingement process from

stripped natural gas).4-Chloro-2-[[5-hydroxy-3-methyl-1-(3- For use at levels not to exceed

sulfophenyl)-1H-pyrazol-4-yl]azo]-5- 1.0 percent by weight of the

methylbenzenesulfonic acid, calcium finished polymers. The

salt (1:1); (C.I. Pigment Yellow 191, finished articles are to

CAS Reg. No. 129423-54-7). contact food only under

conditions of use B through H

as described in table 2 of

Sec. 176.170(c) of this

chapter.4-Chloro-2-[[5-hydroxy-3-methyl-1-(3- For use at levels not to exceed

sulfophenyl)-1H-pyrazol-4-yl]azo]-5- 0.5 percent by weight of

methylbenzenesulfonic acid, diammonium polymers. The finished

salt (1:2): (C.I. Pigment Yellow articles are to contact food

191:1, CAS Reg. No. 154946-66-4). under conditions of use A

through H described in Table 2

of Sec. 176.170(c) of this

chapter.Chrome antimony titanium buff rutile For use at levels not to exceed

(C.I. Pigment Brown 24, CAS Reg. No. 1 percent by weight of

68186-90-3). polymers. The finished

articles are to contact food

only under conditions of use B

through H as described in

Table 2 of Sec. 176.170(c) of

this chapter.Chromium oxide green, Cr2O3 (C.I. For use only:

Pigment Green 17, C.I. No. 77288). 1. In polymers used in contact

with food at a level not to

exceed 5 percent by weight of

the polymer, except as

specified below.

2. In olefin polymers complying

with Sec. 177.1520 of this

chapter.

3. In repeat-use rubber

articles complying with Sec.

177.2600 of this chapter;

total use is not to exceed 10

percent by weight of rubber

articles.

Cobalt aluminate....................... For use only:

1. In resinous and polymeric

coatings complying with Sec.

175.300 of this chapter.

2. Melamine-formaldehyde resins

in molded articles complying

with Sec. 177.1460 of this

chapter.

3. Xylene-formaldehyde resins

condensed with 4-

4'isopropylidenediphenol-

epichlorohydrin epoxy resins

complying with Sec. 175.380

of this chapter.

4. Ethylene-vinyl acetate

copolymers complying with Sec.

177.1350 of this chapter.

5. Urea-formaldehyde resins in

molded articles complying with

Sec. 177.1900 of this

chapter.

6. At levels not to exceed 5

percent by weight of all

polymers except those listed

under limitations 1 through 5

of this item. The finished

articles are to contact food

under conditions of use A

through H described in table 2

of Sec. 176.170(c) of this

chapter.Copper chromite black spinel (C.I. For use at levels not to exceed

Pigment Black 28, CAS Reg. No. 68186- 5 percent by weight of

91-4). polymers. The finished

articles are to contact food

only under conditions of use A

through H as described in

table 2 of Sec. 176.170(c) of

this chapter.D&C; Red No. 7 and its lakes............Diatomaceous earth.....................4,4'-Diamino-[1,1'-bianthracene]- For use at levels not to exceed

9,9',10,10'-tetrone (CAS Reg. No. 4051- 1 percent by weight of

63-2). polymers. The finished

articles are to contact food

only under conditions of use B

through H described in table 2

of Sec. 176.170(c) of this

chapter.2,9-Dichloro-5,12-dihydroquinone[2,3- For use at levels not to exceed

b]acridine-7,14-dione (C.I. Pigment 1.0 percent by weight of

Red 202, CAS Reg. No. 3089-17-6). polymers.4,5-Dichloro-2-((5-hydroxy-3-methyl-1- For use only:

(3-sulfophenyl)-1H-pyrazol-4- 1. At levels not to exceed 1

yl)azo)benzenesulfonic acid, calcium percent by weight of

salt(1:1), (C.I. Pigment Yellow 183, polypropylene polymers and

CAS Reg. No. 65212-77-3). copolymers complying with Sec.

177.1520(c) of this chapter,

items 1.1a, 1.1b, 1.2, 1.3,

3.1a, 3.1b, 3.1c, 3.2a, 3.2b,

3.4, or 3.5. The finished

articles are to contact food

only under conditions of use E

through G, as described in

Table 2 of Sec. 176.170(c) of

this chapter.

2. At levels not to exceed 1

percent by weight of high

density polyethylene polymers

and copolymers complying with

Sec. 177.1520(c) of this

chapter, items 2.1, 2.2, 2.3,

3.1a, 3.1b, 3.1c, 3.2a, 3.2b,

3.6 (density not less than

0.94 grams per cubic

centimeter), or 5. The

finished articles are to

contact food only under

conditions of use E through G,

as described in Table 2 of

Sec. 176.170(c) of this

chapter.5-[(2,3-Dihydro-6-methyl-2-oxo-1H- For use at levels not to exceed

benzimidazol-5-yl)azo]-2,4,6(1H, 3H, 1 percent by weight of

5H)-pyrimidinetrione (CAS Reg. No. polymers. The finished

72102-84-2). articles are to contact food

only under conditions of use B

through H described in table 2

of Sec. 176.170(c) of this

chapter.2,9-Dimethylanthra(2,1,9-def:6,5,10- For use at levels not to exceed

d'e'f')diisoquinoline-1,3,8,10(2H,9H)- 1 percent by weight of

tetrone (C.I. Pigment Red 179, CAS polymers. The finished

Reg. No. 5521-31-3). articles are to contact food

only under conditions of use B

through H as described in

Table 2 of Sec. 176.170(c) of

this chapter.3,3'-[(2,5-Dimethyl-1,4- For use at levels not to exceed

phenylene)bis[imino(1-acetyl-2-oxo-2,1- 1 percent by weight of

ethanediyl)azo]]bis[4-chloro-N-(5- polymers. The finished

chloro-2-methylphenyl)-benzamide] (CAS articles are to contact food

Reg. No. 5280-80-8). only under conditions of use B

through H described in table 2

of Sec. 176.170(c) of this

chapter.3,3'-[(2,5-Dimethyl-1,4- For use at levels not to exceed

phenylene)bis[imino-carbonyl(2-hydroxy- 1 percent by weight of

3,1-naphthalenediyl) azo]] bis(4- polymers. The finished

methylbenzoic acid), bis(2- articles are to contact food

chloroethyl) ester (CAS Reg. No. 68259- only under conditions of use B

05-2). through H described in table 2

of Sec. 176.170(c) of this

chapter.2,2'-[1,2-Ethanediylbis(oxy-2,1- For use at levels not to exceed

phenyleneazo)]bis[N-(2,3-dihydro-2-oxo- 1.0 percent by weight of

1H-benzimidazol-5-yl)]-3-oxo- polymers. The finished

butanamide (C.I. Pigment Yellow 180, articles are to contact food

CAS Reg. No. 77804-81-0). only under conditions of use B

through G described in table 2

of Sec. 176.170(c) of this

chapter.2,2'-(1,2-Ethenediyldi-4,1-phenylene) For use as an optical

bis(benzoxazole) (CAS Reg. No. 1533-45- brightener for all polymers at

5). a level not to exceed 0.025

percent by weight of polymer.

The finished polymer shall

contact foods only of the

types identified in table 1 of

Sec. 176.170(c) of this

chapter, under categories I,

II, IV-B, VI-A, VI-B, VII-B,

and VIII at temperatures not

to exceed 275 F.

High-purity furnace black (CAS Reg. No. For use at levels not to exceed

1333-86-4) containing total 2.5 percent by weight of the

polynuclear aromatic hydrocarbons not polymer.

to exceed 0.5 parts per million, and

benzo[a]pyrene not to exceed 5.0 parts

per billion, as determined by a method

entitled ``Determination of PAH

Content of Carbon Black,'' dated July

8, 1994, as developed by the Cabot

Corp., which is incorporated by

reference in accordance with 5 U.S.C.

552(a) and 1 CFR part 51. Copies may

be obtained from the Office of Food

Additive Safety (HFS-200), Center for

Food Safety and Applied Nutrition,

Food and Drug Administration, 5100

Paint Branch Pkwy., College Park, MD

20740, 240-402-1200, or may be

examined at the Center for Food Safety

and Applied Nutrition's Library, 5100

Paint Branch Pkwy., College Park, MD

20740, or at the National Archives and

Records Administration (NARA). For

information on the availability of

this material at NARA, call 202-741-

6030, or go to: http://

www.archives.gov/federal_register/

code_of_federal_regulations/

ibr_locations.html..Iron oxides............................Kaolin-modified, produced by treating For use only in olefin polymers

kaolin with a reaction product of complying with Sec. 177.1520

isopropyl titanate and oleic acid in of this chapter at levels not

which 1 mole of isopropyl titanate is to exceed 40 percent by weight

reacted with 1 to 2 moles of oleic of olefin polymer.

acid. The reaction product will not

exceed 8 percent of the modified

kaolin. The oleic acid used shall meet

the requirements specified in Sec.

172.860 of this chapter.Magnesium oxide........................Magnesium silicate (talc)..............Manganese Violet (manganese ammonium For use at levels not to exceed

pyrophosphate; CAS Reg. No. 10101-66- 2 percent by weight of

3).. polymers. The finished

articles are to contact food

only under conditions of use A

through H as described in

table 2 of Sec. 176.170(c) of

this chapter.Mixed methylated 4,4'-bis(2- For use as an optical

benzoxazolyl)stilbenes with the major brightener only at levels not

portion consisting of 4-(2- to exceed 0.05 percent by

benzoxazolyl)-4'-(5-methyl-2- weight of rigid and semirigid

benzoxazolyl)stilbene (CAS Registry polyvinyl chloride and not to

No. 5242-49-9) and lesser portions exceed 0.03 percent by weight

consisting of 4,4'-bis(5-methyl-2- in all other polymers. The

benzoxazolyl)stilbene (CAS Registry finished food-contact articles

No. 2397-00-4) and 4,4'-bis(2- shall be used only under

benzoxazolyl)stilbene (CAS Registry conditions of use D, E, F, and

No. 1533-45-5). G described in table 2 of Sec.

176.170(c) of this chapter.7-(2H-Naphtho[1,2-d]triazol-2-yl)-3- For use as an optical

phenylcoumarin (CAS Reg. No. 3333-62- brightener only in:

8) having a melting point of 250 C to 1. Olefin polymers complying

251 C and a nitrogen content of 10.7 with Sec. 177.1520 of this

to 11.2 percent. chapter only at levels such

that the product of

concentration of the optical

brightener (expressed in parts

per million by weight of the

olefin polymer) multiplied by

the thickness of the olefin

polymer (expressed in

thousandths of an inch and

limited to no more than 0.400

inch) shall not exceed 500;

provided that the level of the

brightener shall not exceed 20

parts per million by weight of

the olefin polymer, and

further that the olefin

polymers shall comply with

specifications for items 1.1,

2.1, 3.1, 3.3, and 4 of Sec.

177.1520(c) of this chapter.

The polymer may be used under

the conditions described in

Sec. 176.170(c) of this

chapter, table 2, under

conditions of use E, F, and G.

2. Polyethylene terephthalate

specified in Sec.

177.2800(d)(5)(i) of this

chapter at a level not to

exceed 0.035 percent by weight

of the finished fibers.Nickel antimony titanium yellow rutile For use at levels not to exceed

(C.I. Pigment Yellow 53, CAS Reg. No. 1 percent by weight of

8007-18-9). polymers. The finished

articles are to contact food

only under conditions of use B

through H as described in

Table 2 of Sec. 176.170(c) of

this chapter.1,1'-[(6-Phenyl-1,3,5-triazine-2,4- For use at levels not to exceed

diyl)diimino]bis-9,10-anthracenedione 0.25 percent by weight of

(CAS Reg. No. 4118-16-5). polyethylene phthalate

polymers that comply with Sec.

177.1630 of this chapter. The

finished articles are to

contact food only under

conditions of use E, F, and G

described in table 2, Sec.

176.170(c) of this chapter,

except, when such articles are

used with food types III, IV-

A, and V, described in table

1, Sec. 176.170(c) of this

chapter, the finished articles

are to contact food only under

conditions of use D, E, F, and

G.Phthalocyanine blue (C.I. pigment blue

15, 15:1, 15:2, 15:3, and 15:4; C.I.

No. 74160; CAS Reg. No. 147-14-8).Phthalocyanine green (C.I. pigment

green 7, C.I. No. 74260).C.I. Pigment red 38 (C.I. No. 21120)... For use only in rubber articles

for repeated use complying

with Sec. 177.2600 of this

chapter; total use is not to

exceed 10 percent by weight of

rubber article.

Quinacridone red (C.I. Pigment violet

19, C.I. No. 73900).Sienna (raw and burnt).................Silica.................................2,3,4,5-Tetrachloro-6-cyanobenzoic For use only at levels not to

acid, methyl ester reaction products exceed 1 percent by weight of

with p-phenyllenediamine and sodium polymers. The finished

methoxide (CAS reg. No. 106276-80-6). articles are to contact food

only under conditins of use B

through H, described in table

2, of Sec. 176.170(c) of this

chapter.4,5,6,7-Tetrachloro-2-[2-(4,5,6,7- For use only at levels not to

tetrachloro-2,3-dihydro-1,3-dioxo-1H- exceed 1 percent by weight of

inden-2-yl)-8-quinolinyl]-1H-isoindole- polymers. The finished

1,3(2H)-dione (C. I. Pigment Yellow articles are to contact food

138, CAS Reg. No.30125-47-4). only under conditions of use C

through H, as described in

table 2 of Sec. 176.170(c) of

this chapter; provided further

that the finished articles

shall not be filled at

temperatures exceeding 158 F

(70 C).2,2'-(2,5-Thiophenediyl)-bis(5-tert- For use as an optical

butylbenzoxazole) (CAS Reg. No. 7128- brightener:

64-5). 1. In all polymers at levels

not to exceed 0.015 percent by

weight of the polymer. The

finished articles are to

contact food only under

conditions of use A through H

described in table 2 of Sec.

176.170(c) of this chapter.

2. In all polymers at levels

not to exceed 0.05 percent by

weight of the polymer. The

finished articles shall

contact foods only of the

types identified in table 1 of

Sec. 176.170(c) of this

chapter, under Categories I,

II, IV-B, VI-A, VI-B, VI-C,

VII-B, and VIII under

conditions of use A through H

described in table 2 of Sec.

176.170(c) of this chapter.

3. In adhesives complying with

Sec. 175.105 of this chapter

and in pressure-sensitive

adhesives complying with Sec.

175.125 of this chapter.Titanium dioxide.......................Titanium dioxide-barium sulfate........Titanium dioxide-magnesium silicate....Ultramarines........................... As identified in Sec. 73.2725

of this chapter.Zinc carbonate......................... For use only:

1. In resinous and polymeric

coatings complying with Sec.

175.300 of this chapter.

2. Melamineformaldehyde resins

in molded articles complying

with Sec. 177.1460 of this

chapter.

3. Xylene-formaldehyde resins

condensed with 4-4'-

isopropylidene diphenol-

epichlorohydrin epoxy resins

complying with Sec. 175.380

of this chapter.

4. Ethylene-vinyl acetate

copolymers complying with Sec.

177.1350 of this chapter.

5. Urea-formaldehyde resins in

molded articles complying with

Sec. 177.1900 of this

chapter.Zinc chromate.......................... For use only in rubber articles

for repeated use complying

with Sec. 177.2600 of this

chapter; total use is not to

exceed 10 percent by weight of

rubber article.Zinc oxide............................. For use only:

1. In resinous and polymeric

coatings complying with Sec.

175.300 of this chapter.

2. Melamine-formaldehyde resins

in molded articles complying

with Sec. 177.1460 of this

chapter.

3. Xylene-formaldehyde resins

condensed with 4-4'-

isopropylidene-diphenol-

epichlorohydrin epoxy resins

complying with Sec. 175.380

of this chapter.

4. Ethylene-vinyl acetate

copolymers complying with Sec.

177.1350 of this chapter.

5. Urea-formaldehyde resins in

molded articles complying with

Sec. 177.1900 of this

chapter.Zinc sulfide........................... For use at levels not to exceed

10 percent by weight.------------------------------------------------------------------------ [48 FR 46775, Oct. 14, 1983]

Editorial Note: For Federal Register citations affecting Sec. 178.3297, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.fdsys.gov.