Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by composition]
6. organic material
7. plastic (material)
8. [plastic by property]
9. thermoplastic
10. cellulosic
11. cellulose ether

Anotations

Scope note:

Hydroxypropyl cellulose (HPC) is a water-soluble cellulose ether used as an emulsifier, thickener, and suspending agent in many types of solutions. In conservation, HPC is used as a consolidant for leather afflicted by "red rot", and as a fixative for pigments and dyes.