FR2082674A5 - Opaque and transparent plastic extrusion - of film for covering plants - Google Patents

Opaque and transparent plastic extrusion - of film for covering plants

Info

Publication number
FR2082674A5
FR2082674A5 FR7010435A FR7010435A FR2082674A5 FR 2082674 A5 FR2082674 A5 FR 2082674A5 FR 7010435 A FR7010435 A FR 7010435A FR 7010435 A FR7010435 A FR 7010435A FR 2082674 A5 FR2082674 A5 FR 2082674A5
Authority
FR
France
Prior art keywords
opaque
film
bands
tube
transparent plastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7010435A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR7010435A priority Critical patent/FR2082674A5/en
Application granted granted Critical
Publication of FR2082674A5 publication Critical patent/FR2082674A5/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00—Protecting plants
    • A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
    • A01G13/0256—Ground coverings
    • A01G13/0268—Mats or sheets, e.g. nets or fabrics
    • A01G13/0275—Films

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Protection Of Plants (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A film of synthetic plastic material consists of a central band of tansparent or translucent material combined with outer bands of opaque material. The composite films are pref. made by extruding a composite tube having narrow bands of translucent or transparent film and wide bands of opaque film, the tube being cut in the centre of the opaque bands. The tube may be formed by a special extrusion die fed by four separate extruders which are diametrally opposed. By placing the transparent section over the plants their growth is stimulated while the interposed opaque sections retard the growth of the weeds.
FR7010435A 1970-03-23 1970-03-23 Opaque and transparent plastic extrusion - of film for covering plants Expired FR2082674A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7010435A FR2082674A5 (en) 1970-03-23 1970-03-23 Opaque and transparent plastic extrusion - of film for covering plants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7010435A FR2082674A5 (en) 1970-03-23 1970-03-23 Opaque and transparent plastic extrusion - of film for covering plants

Publications (1)

Publication Number Publication Date
FR2082674A5 true FR2082674A5 (en) 1971-12-10

Family

ID=9052753

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7010435A Expired FR2082674A5 (en) 1970-03-23 1970-03-23 Opaque and transparent plastic extrusion - of film for covering plants

Country Status (1)

Country Link
FR (1) FR2082674A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007036137A1 (en) * 2005-09-29 2007-04-05 Xiaolu Li Die for film-blowing machine and the machine including such die
FR3098682A1 (en) * 2019-07-18 2021-01-22 Sarl Europlastic Protective tarpaulin for plant cultivation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007036137A1 (en) * 2005-09-29 2007-04-05 Xiaolu Li Die for film-blowing machine and the machine including such die
FR3098682A1 (en) * 2019-07-18 2021-01-22 Sarl Europlastic Protective tarpaulin for plant cultivation

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Legal Events

Date Code Title Description
ST Notification of lapse