Semi-micro-foaming preservative film

• Main Author: SHI DIXING
• Format: Patent
• Language: Chinese; English
• Published: 29.12.2017
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HANDLING THIN OR FILAMENTARY MATERIAL; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention discloses a semi-micro-foaming preservative film which comprises a film body, wherein the film body comprises a base film layer and a micro-foaming layer located on one side of the base film layer; the base film layer is arranged as a non-foaming solid layer; the foaming layer has a micro-pore structure capable of adsorbing ethylene; the density of the film body is 0.5-0.9g/cm3; the film body is prepared from the following components by mass fraction: 40-80% of resin, 15-50% of modified starch and 1-10% of solid agent. Besides, the invention also discloses a preparation method for the film body and a preservative bag prepared from the film body. The preservative film (bag) maintains the characteristics of air insulation and water insulation of the preservative film (bag) in the prior art, has the advantage of capability of adsorbing and converting ethylene, is low in density and is convenient for batch transportation. 本发明公开了种半微发泡保鲜膜，包括膜体，膜体包括基膜层和位于所述基膜层侧的微发泡层，基膜层为无发泡的实体层，微发泡层具有能够吸附乙烯的微气孔结构，膜体的密度