Word Count : 519

---

The process of papermaking is a critical component in the preservation and conservation of library materials. Understanding the steps and types of paper helps in selecting appropriate conservation methods. The traditional papermaking process consists of several steps: preparation of raw materials, pulping, sheet formation, pressing, drying, and surface treatment. The process begins with the selection and preparation of raw materials. Historically, paper was made from rags, cotton, or other cellulose-based fibers. In modern industrial production, wood pulp is the primary source. The raw materials are cleaned and sorted before being reduced to a fibrous slurry through a mechanical or chemical pulping process. Mechanical pulping involves physically grinding wood logs into pulp, while chemical pulping uses chemicals to dissolve lignin and free cellulose fibers. Once the pulp is prepared, it ____ ________ ___ __________ ____ _________ ____ _______ _______ _____.
__________ ______ _____ _________ ______ _____ _________ ___ _________ _________ ____.
__________ _____ _______ ___ __________ _______ ________ _____.
_______ _____ ___ _______ ____ _____ _______ ______ _______.
____ __________ _________ ________ _____ ________ ______ ____ ______ ________ _______ _________.
______ ___ _____ ___ ____ ____.
_________ ______ _______ ____ ________ _______ ______ __________.
_____ __________ _________ _____ _____ _________ _______ __________ ______.
_____ _____ ________ ________ _____ _____ ___ _______ ___ ______.
________ ___ _____ ______ ___ ______ ________ __________ ______ ___ _______ ______.
__________ __________ _________ ____ ______.
__________ ______ ________ ___ ___ ___ _________ ____ ________ ______.
_________ ____ __________ _________ ___ ______.
__________ _________ ______ _______ ____ _____.
_______ _______ __________ __________ ___ ___ _______ _________ ______.
_________ _______ _________ _________ _____ _________ ____ __________ ______ _______ _______ _______.
___ __________ ____ _____ ___ ______ ___ _________ ___ __________ __________.
__________ _____ __________ ________ _________ _____ __________.
___ _______ _________ _______ ________ _____ ____.
_____ ________ _________ _________ ____ _______ _____.
_____ _____ ______ ____ ________ _____ ________ ____ ____ _________ ______.
_____ ______ __________ _______ _____ ____ _____ ____ ________.
________ ______ __________ ____ __________ __________ __________ _______ ___ ________ __________.
____ __________ ________ ___ _______.
____ ______ _______ ___ __________ ________.
_______ ______ ___ _______ _________ _________ ____ ____.
__________ __________ __________ _________ ________ ____ _____ ____ _____.
____ _______ ________ ___ _________ ________.
_________ ______ _____ ______ _______ _________ __________ _________.
_____ _____ _________ ___ ________ _____ ______.
____ _______ ________ _____ _______ _____ ___ __________.
__________ ___ ___ _____ _______.
_______ _______ __________ __________ _____ _____ __________ ________ ________ ____ ________ ______.
________ _____ ____ ________ ___ _________.
_______ ____ _______ _____ ______ _____ _________ ___.
______ ___ __________ _________ ______ ________ ________.
__________ ______ ______ _______ ________ ________ ___.
___ _______ _____ ______ __________.
________ ______ _____ ____ ___ ____ _________ _________.
___ _________ ________ ________ _________ ____ _______ __________ _________.
________ ________ ________ ______ ________ ______ _______.
________ ________ _________ _________ ___ _______ _________ _____ __________ _______ _____ ____.
______ _______ _________ ________ ________ ________ ________ _________ _______ ____ __________ _____.
________ ________ ______ _________ ________ ________.
___ __________ ______ _________ _____ __________ _________ _________ ________.
___ __________ __________ _________ _____ ___ ________ ________ ________ ______.
____ _________ ______ _______.
Get Full Answer on WhatsApp