WO2008020756A2 - Panels made of glass - Google Patents

Panels made of glass Download PDF

Info

Publication number
WO2008020756A2
WO2008020756A2 PCT/NL2007/050403 NL2007050403W WO2008020756A2 WO 2008020756 A2 WO2008020756 A2 WO 2008020756A2 NL 2007050403 W NL2007050403 W NL 2007050403W WO 2008020756 A2 WO2008020756 A2 WO 2008020756A2
Authority
WO
WIPO (PCT)
Prior art keywords
panel
glass
indentations
centre
depth
Prior art date
Application number
PCT/NL2007/050403
Other languages
French (fr)
Other versions
WO2008020756A3 (en
Inventor
Benjaminus Jan Boon
Jan Karel Benjamin Quak
Original Assignee
Horti Solutions B.V.
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 Horti Solutions B.V. filed Critical Horti Solutions B.V.
Priority to EP07808536A priority Critical patent/EP2059487A2/en
Publication of WO2008020756A2 publication Critical patent/WO2008020756A2/en
Publication of WO2008020756A3 publication Critical patent/WO2008020756A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C19/00—Surface treatment of glass, not in the form of fibres or filaments, by mechanical means
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2204/00—Glasses, glazes or enamels with special properties
    • C03C2204/08—Glass having a rough surface

Definitions

  • the invention relates to a panel made of glass for roofs and/or vertical walls for greenhouses for growing crops.
  • the known glass panels or glass panes which have been used in general for decades and which are generally used for roofs and/or vertical walls of greenhouses or glasshouses for growing crops consist of transparent and translucent material.
  • the translucent properties inter alia ensure that the incident light can reach deeper into the crop, and that there is a reduced risk of the crop becoming burnt, in particular the buds, fruits and leaves.
  • this can be achieved in an effective manner in that the panel, on at least one side, is provided with a structured surface which is formed by indentations formed in the glass, with the depth of the various indentations in the panel being between 1 and 100 micrometres.
  • the indentations formed in the panel are of an at least substantially equal depth.
  • centre-to-centre distance between adjacent indentations is advantageously between 1 and 100 microns.
  • the surface structure which is obtained also ensures that the surface reflection of the base glass is completely or partially eliminated, as a result of which the transmission of the incident light can even increase by 1 to 4% compared to the untreated (non-etched) panel.
  • the sheet glass or base glass cut to panels of the desired size will be subjected to an etching process using chemical means in order to form a surface with a regular structure (at least on one side) which consists of the indentations formed in the glass (uneven structures) of substantially identical shape and size.
  • the values for the desired depth of the indentations which are preferably substantially identical to one another will be between 1 and 100 microns, while the centre-to-centre distance between the adjacent indentations will have at least substantially constant values of between 1 and 100 microns, preferably corresponding to the depth of the respective indentations.
  • the glass will have a haze factor of at least 50%.
  • the invention also relates to a greenhouse consisting of a roof and wall structure wherein which one of these structures is provided with a glass panel as described above.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Greenhouses (AREA)
  • Glass Compositions (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

The invention relates to a panel made of glass for roofs and/or vertical walls for greenhouses for growing crops. On at least one side, the panel is provided with a structured surface which is formed by indentations formed in the glass, with the depth of the various indentations in the panel being between 1 and 100 micrometres. The indentations formed in the panel are of an at least substantially equal depth. The centre- to-centre distance between adjacent indentations is between 1 and 100 microns.

Description

Panels made of glass
The invention relates to a panel made of glass for roofs and/or vertical walls for greenhouses for growing crops.
The known glass panels or glass panes which have been used in general for decades and which are generally used for roofs and/or vertical walls of greenhouses or glasshouses for growing crops consist of transparent and translucent material.
However, in horticulture, there has been a need for translucent material for some time, in which the translucent properties are obtained while the transmission of the panels used is not adversely affected. The translucent properties inter alia ensure that the incident light can reach deeper into the crop, and that there is a reduced risk of the crop becoming burnt, in particular the buds, fruits and leaves.
According to the invention, this can be achieved in an effective manner in that the panel, on at least one side, is provided with a structured surface which is formed by indentations formed in the glass, with the depth of the various indentations in the panel being between 1 and 100 micrometres.
Preferably, the indentations formed in the panel are of an at least substantially equal depth.
Furthermore, the centre-to-centre distance between adjacent indentations is advantageously between 1 and 100 microns.
Measurements during tests have shown that in this way a translucent panel made of glass, otherwise referred to as translucent horticultural glass, can be obtained by means of which the incident light in the greenhouse or glasshouse is spread particularly evenly while at least maintaining the original transmission of the base glass.
It has been found that is it possible to grow a crop using the present invention without damage occurring to the crop and without screening being required. That is to say that the incident light is used essentially completely in order to make the crop grow without the abovementioned risks.
In addition, it has been found that it is possible to achieve a particularly high transmission through the glass using the measures according to the invention.
The surface structure which is obtained also ensures that the surface reflection of the base glass is completely or partially eliminated, as a result of which the transmission of the incident light can even increase by 1 to 4% compared to the untreated (non-etched) panel.
The sheet glass or base glass cut to panels of the desired size will be subjected to an etching process using chemical means in order to form a surface with a regular structure (at least on one side) which consists of the indentations formed in the glass (uneven structures) of substantially identical shape and size.
The values for the desired depth of the indentations which are preferably substantially identical to one another will be between 1 and 100 microns, while the centre-to-centre distance between the adjacent indentations will have at least substantially constant values of between 1 and 100 microns, preferably corresponding to the depth of the respective indentations.
As a result of the treatment which has been carried out, the glass will have a haze factor of at least 50%.
The invention also relates to a greenhouse consisting of a roof and wall structure wherein which one of these structures is provided with a glass panel as described above.
After reading the above, those skilled in the art will immediately be able to think of variants which are within the scope of the attached claims.

Claims

Claims
1. Glass panel for roofs and/or vertical walls for greenhouses for growing crops, characterized in that the panel, on at least one side, is provided with a structured surface which is formed by indentations formed in the glass, with the depth of the various indentations in the panel being between 1 and 100 micrometres.
2. Panel according to Claim 1, characterized in that the indentations formed in the panel are of an at least substantially equal depth.
3. Panel according to Claim 1 or 2, characterized in that the centre-to-centre distance between adjacent indentations is between 1 and 100 microns.
4. Panel according to one of the preceding claims, characterized in that the centre- to-centre distance between adjacent indentations formed in the glass across the entire surface of the panel has a substantially constant size between 1 and 100 microns, with said centre-to-centre distance at least substantially corresponding to the depth of the respective indentations.
5. Panel according to one of the preceding claims, characterized in that the panel has a haze factor of at least 50%.
6. Panel according to one of the preceding claims, characterized in that the structured surface is formed by etching.
7. Panel according to Claim 6, characterized in that the transmission of light is increased by 1 to 4% compared to the non-etched panel.
8. Greenhouse comprising a wall and roof structure in which said structure comprises panels made of glass according to one of the preceding claims.
PCT/NL2007/050403 2006-08-15 2007-08-15 Panels made of glass WO2008020756A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07808536A EP2059487A2 (en) 2006-08-15 2007-08-15 Panels made of glass

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1032325 2006-08-15
NL1032325A NL1032325C1 (en) 2006-08-15 2006-08-15 Glass panels.

Publications (2)

Publication Number Publication Date
WO2008020756A2 true WO2008020756A2 (en) 2008-02-21
WO2008020756A3 WO2008020756A3 (en) 2008-04-17

Family

ID=38947357

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2007/050403 WO2008020756A2 (en) 2006-08-15 2007-08-15 Panels made of glass

Country Status (3)

Country Link
EP (1) EP2059487A2 (en)
NL (1) NL1032325C1 (en)
WO (1) WO2008020756A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20207373U1 (en) * 2002-05-10 2003-06-12 Toepfer Ct Essen Gmbh Composition used for surface treatment, preferably etching or roughening to give nonslip finish on, e.g., stone, ceramics, paving, glass, sanitary ware, tiles or facade, is obtained by mixing aqueous hydrogen fluoride and ammonia solutions
US20030170459A1 (en) * 2002-03-05 2003-09-11 Zuel Company, Inc. Anti-reflective glass surface with improved cleanability
EP1669430A1 (en) * 2004-12-10 2006-06-14 S.E.P.P.I.C., Societe D'exploitation De Produits Pour Les Industries Chimiques Bifluorinated composition , method of preparation and use for roughening glass
WO2006112493A1 (en) * 2005-04-15 2006-10-26 Lizer Industry Co., Ltd Photocatalyst module and purification equipment for gas and liquid with the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030170459A1 (en) * 2002-03-05 2003-09-11 Zuel Company, Inc. Anti-reflective glass surface with improved cleanability
DE20207373U1 (en) * 2002-05-10 2003-06-12 Toepfer Ct Essen Gmbh Composition used for surface treatment, preferably etching or roughening to give nonslip finish on, e.g., stone, ceramics, paving, glass, sanitary ware, tiles or facade, is obtained by mixing aqueous hydrogen fluoride and ammonia solutions
EP1669430A1 (en) * 2004-12-10 2006-06-14 S.E.P.P.I.C., Societe D'exploitation De Produits Pour Les Industries Chimiques Bifluorinated composition , method of preparation and use for roughening glass
WO2006112493A1 (en) * 2005-04-15 2006-10-26 Lizer Industry Co., Ltd Photocatalyst module and purification equipment for gas and liquid with the same

Also Published As

Publication number Publication date
EP2059487A2 (en) 2009-05-20
NL1032325C1 (en) 2008-02-18
WO2008020756A3 (en) 2008-04-17

Similar Documents

Publication Publication Date Title
US5269093A (en) Method and apparatus for controlling plant growth with artificial light
EP1944817A3 (en) Method of manufacturing flat panel display device
US20080216399A1 (en) Greenhouse, method for growing plants using the same, and light transmissive substrate
CA2954275C (en) Method for the cultivation of plants using a carrier with a removable side support structure arranged thereon
EP2059487A2 (en) Panels made of glass
CA3192510A1 (en) Improved greenhouse glazing
EP2042031B1 (en) Greenhouse system
JP2018061465A (en) Settled planting plate for hydroponics, manufacturing method of settled planting plate for hydroponics, and hydroponic apparatus
DE102018201043A1 (en) OPTOELECTRONIC COMPONENT AND COMPONENT CONNECTOR THEREOF
JP6845432B2 (en) Float body
CN109987824A (en) A kind of high light transmission mist degree greenhouse special glass, glasshouse and glass-making processes
Viviani et al. Effects of pH, temperature and light intensity on spore germination and growth analysis of young sporophytes of Polypodium lepidopteris (Pteridophyta, Polypodiaceae)
KR200362835Y1 (en) Mulching Film for Strawberry Cultivation
CN111031786A (en) Fluororesin film for agriculture and greenhouse for agriculture
Ludwig et al. Plant stems as building material for living plant constructions
Richards Some fungous contaminants of optical instruments
BE1019048A3 (en) VEGETABLE WALL AND ASSOCIATED METHOD FOR PROMOTING VEGETEAUX ANCHORAGE.
JP3216402U (en) Cultivation panel for hydroponics
KR200391249Y1 (en) annual ring original board
JP2006067989A (en) Bleaching cultivation method for plant
EP4014717A1 (en) Method and apparatus for inhibiting fungal hyphae growth in soilless cultivation
WO2012124632A1 (en) Plant factory and culture benches with light-guiding plate
Machuca et al. Planting densities affect nitrate concentration in spinach (Spinacia oleracea L.) cultivated in floating hydroponic system root
Steinbuch et al. Production and quality of cutflowers and potplants grown in greenhouses covered with energy saving double layer materials
KR101947187B1 (en) Patterned glass having high transmittance

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07808536

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

REEP Request for entry into the european phase

Ref document number: 2007808536

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2007808536

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: RU