---
kind: "section"
citation: "21 C.F.R. § 177.1400"
title: "21"
number: "177.1400"
heading: "Hydroxyethyl cellulose film, water-insoluble."
url: "https://uscodex.org/cfr/21/177.1400"
---

# §177.1400. Hydroxyethyl cellulose film, water-insoluble.


Water-insoluble hydroxyethyl cellulose film may be safely used for packaging food in accordance with the following prescribed conditions:

- (a) Water-insoluble hydroxyethyl cellulose film consists of a base sheet manufactured by the ethoxylation of cellulose under controlled conditions, to which may be added certain optional substances of a grade of purity suitable for use in food packaging as constituents of the base sheet or as coatings applied to impart desired technological properties.
- (b) Subject to any limitations prescribed in parts [170](/cfr/21/part170.md) through [189](/cfr/21/part189.md) of this chapter, the optional substances used in the base sheet and coating may include:
  - (1) **Substances generally recognized as safe in food.**
  - (2) Substances permitted to be used in water-insoluble hydroxyethyl cellulose film by prior sanction or approval and under conditions specified in such sanctions or approval, and substances listed in [part 181](/cfr/21/part181.md), [subpart B](/cfr/21/subpartB.md) of this chapter.
  - (3) Substances that by any regulation promulgated under [section 409](/cfr/21/409.md) of the act may be safely used as components of water-insoluble hydroxyethyl cellulose film.
  - (4) Substances identified in and used in compliance with [§ 177.1200(c)](/cfr/21/177.1200.md?p=c).
- (c) Any substance employed in the production of the water-insoluble hydroxyethyl cellulose film described in this section that is the subject of a regulation in parts [174](/cfr/21/part174.md), [175](/cfr/21/part175.md), 176, 177, 178 and [§ 179.45](/cfr/21/179.45.md) of this chapter conforms with any specification in such regulation.

## Notes

### Authority

Authority: 21 U.S.C. 321, 342, 348, 379e.

### Source

Source: 42 FR 14572, Mar. 15, 1977, unless otherwise noted.