Provided is an agent serving as a binder and a disintegrant for dry direct
compression having a high binding property and fluidity. More specifically, provided
are low-substituted hydroxypropyl cellulose having coiled fibers; an agent serving
both as a binder and a disintegrant for dry direct compression and a solid preparation,
each comprising the low-substituted hydroxypropyl cellulose; and a process for
producing the low-substituted hydroxypropyl cellulose having coiled fibers.