Читать книгу Hemp Hurds as Paper-Making Material - Lyster H. Dewey - Страница 2

THE PRODUCTION AND HANDLING OF HEMP HURDS.

WHAT HEMP HURDS ARE.

PITH, WOOD, AND FIBER.

CHARACTER OF HURDS AFFECTED BY RETTING.

PROPORTION OF HURDS TO FIBER AND YIELD PER ACRE.

HURDS AVAILABLE FROM MACHINE-BROKEN HEMP.

PRESENT USES OF HEMP HURDS.

PRESENT SUPPLIES OF HURDS AVAILABLE.

BALING FOR SHIPMENT.

COST OF BALING.

SUMMARY.

THE MANUFACTURE OF PAPER FROM HEMP HURDS.

INTRODUCTION.

FACTORS JUSTIFYING AN INVESTIGATION OF HEMP HURDS.

CHARACTER OF THE MATERIAL.

CHARACTER OF THE TESTS.

OPERATIONS INVOLVED IN A TEST.

DESCRIPTION OF TESTS.

COMPARISON OF THE TESTS AND COMMERCIAL PRACTICE.

PHYSICAL TESTS OF THE PAPERS PRODUCED.

CONCLUSIONS.