CN108781922A - 温室大棚保温毡及其制备方法 - Google Patents

温室大棚保温毡及其制备方法 Download PDF

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CN108781922A
CN108781922A CN201810720895.4A CN201810720895A CN108781922A CN 108781922 A CN108781922 A CN 108781922A CN 201810720895 A CN201810720895 A CN 201810720895A CN 108781922 A CN108781922 A CN 108781922A
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greenhouse
insulation felt
greenhouse insulation
felt
fiber
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葛寿祥
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Yossi Hua (hangzhou) Wool Dyeing Co Ltd
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Yossi Hua (hangzhou) Wool Dyeing Co Ltd
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    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/22—Shades or blinds for greenhouses, or the like
    • A01G9/227—Shades or blinds for greenhouses, or the like rolled up during non-use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/55—Polyesters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/045—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyolefin or polystyrene (co-)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract

本发明提供了一种温室大棚保温毡及其制备方法，涉及温室种植技术领域。上述保温毡主要由羊毛纤维和热熔纤维充分混合后，经气流成网制得，本发明创造性的将羊毛纤维与热熔纤维两种原料结合到一起来进行温室大棚保温毡的制备，利用羊毛纤维柔韧性好、拉伸强度高的特点有效缓解了现有草苫、蒲席等传统保温覆盖材料揭盖笨重困难、保温效果差、寿命短以及对温室薄膜的磨损破坏严重的缺点，制备得到的温室大棚保温毡具有揭盖重量轻、保温效果好、使用寿命长且不污染磨损薄膜的优点，可以充分满足现代温室种植集约化、规模化的发展方向。此外，本发明温室大棚保温毡经气流成网制得，该一次成型的结构也提高了本发明温室大棚保温毡的保温效果。

Description

温室大棚保温毡及其制备方法
技术领域
本发明涉及温室种植技术领域，尤其是涉及一种温室大棚保温毡及其制备方法。
背景技术
由于我国华北地区为典型的大陆性气候，日光温室冬季生产必须进行夜间保温，对此前人已进行了大量的研究。长期以来，日光温室透明屋面夜间的保温主要依靠覆盖草苫、纸被、棉被等来实现。例如用稻草、蒲草、谷草、蒲草加芦苇以及其它的草等编制而成的草苫等，它是一种传统意义上的多孔保温材料，其散热是通过固体介质的传导、对流以及辐射来实现的。
尽管草苫、蒲席等传统保温覆盖材料在日光温室的发展进程中起到过举足轻重的作用，但随着温室种植向集约化和规模化的方向发展，传统保温覆盖材料的缺点则日益突出，如笨重、草帘一般都是由各种草类编织而成，比较笨重，重量约在40-50公斤，卷放和展开使用时均需要花费较大的人力，同时草帘易被雨、雪浸湿，既增加草帘本身的重量，又使得保温效果显著下降，此外传统保温覆盖材料还有质量不均、使用寿命短、揭盖困难、污染薄膜、对薄膜的磨损破坏严重等问题，
因此，鉴于现有草苫、蒲席等传统保温覆盖材料的缺陷，研究开发出一种具有揭盖重量轻、保温效果好、使用寿命长且不污染磨损薄膜的温室大棚保温毡，以满足温室种植集约化、规模化的发展方向，变得十分必要和迫切。
有鉴于此，特提出本发明。
发明内容
本发明的第一目的在于提供一种温室大棚保温毡，所述温室大棚保温毡主要由羊毛纤维和热熔纤维充分混合后，经气流成网制得。本发明制备得到的温室大棚保温毡具有揭盖重量轻、保温效果好、使用寿命长且不污染磨损薄膜的优点，可以充分满足现代温室种植集约化、规模化的发展方向。此外，本发明温室大棚保温毡经气流成网制得，该一次成型的结构也提高了本发明温室大棚保温毡的保温效果。
本发明的第二目的在于提供一种温室大棚保温毡的制备方法，该方法上述制备方法制得的保温毡不存在化工辅料添加的问题，对温室薄膜不会产生任何腐蚀，此外，本发明温室大棚保温毡一次成型的结构可以直接均衡地展开温室保温，同时也提高了本发明温室大棚保温毡的使用寿命。
本发明提供的一种温室大棚保温毡，所述温室大棚保温毡主要由羊毛纤维和热熔纤维充分混合后，经气流成网制得。
进一步的，所述羊毛纤维和热熔纤维的重量比为80～90：15；
优选的，所述羊毛纤维和热熔纤维的重量比为85：15。
更进一步的，所述羊毛纤维为废旧羊毛衣服依次经过切割、乳化、开松制得。
更进一步的，所述热熔纤维为低熔点涤纶短纤维4080。
进一步的，所述温室大棚保温毡的毡体两侧还设置有防水层，所述温室大棚保温毡作为夹层设置于两层防水层中间。
更进一步的，所述防水层为涂覆有聚烯烃防水涂层的涤纶纤维布；
进一步的，所述聚烯烃防水涂层含有密度为0.75～0.95g/cm2的高压聚乙烯。
本发明提供的一种温室大棚保温毡的制备方法，所述制备方法包括以下步骤：
首先将羊毛纤维和热熔纤维混合均匀，随后在气流成网机中成网，并对成网纤维进行热熔并压制，得到保温毡体，然后任选的在保温毡体的两侧设置防水层，得到温室大棚保温毡。
进一步的，所述对成网纤维进行热熔的热熔温度为170～195℃。
进一步的，所述对成网纤维进行压制的压力为100～500MPa。
与现有技术相比，本发明的有益效果为：
本发明提供的温室大棚保温毡主要由羊毛纤维和热熔纤维充分混合后，经气流成网制得，其中羊毛纤维是一种无公害、可自然降解，绿色环保的纯天然产品，其制品具有柔韧性好、拉伸强度高的特点；热熔纤维在制备过程中融化，进而是整个保温毡粘结在一起。本发明创造性的将羊毛纤维与热熔纤维两种原料结合到一起来进行温室大棚保温毡的制备，利用羊毛纤维柔韧性好、拉伸强度高的特点有效缓解了现有草苫、蒲席等传统保温覆盖材料揭盖笨重困难、保温效果差、寿命短以及对薄膜的磨损破坏严重的缺点，制备得到的温室大棚保温毡具有揭盖重量轻、保温效果好、使用寿命长且不污染磨损薄膜的优点，可以充分满足现代温室种植集约化、规模化的发展方向。此外，本发明温室大棚保温毡经气流成网制得，该一次成型的结构也提高了本发明温室大棚保温毡的保温效果。
本发明提供的温室大棚保温毡的制备方法，首先将羊毛纤维和热熔纤维混合均匀，随后在气流成网机中成网，并对成网纤维进行热熔并压制，得到保温毡体，然后任选的在保温毡体的两侧设置防水层，得到温室大棚保温毡。由上述制备方法制得的保温毡不存在化工辅料添加的问题，对温室薄膜不会产生任何腐蚀，此外，本发明温室大棚保温毡一次成型的结构可以直接均衡地展开温室保温，同时也提高了本发明温室大棚保温毡的使用寿命。
具体实施方式
下面将结合实施例对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
根据本发明的一个方面，一种温室大棚保温毡，所述温室大棚保温毡主要由羊毛纤维和热熔纤维充分混合后，经气流成网制得。
本发明提供的温室大棚保温毡主要由羊毛纤维和热熔纤维充分混合后，经气流成网制得，其中羊毛纤维是一种无公害、可自然降解，绿色环保的纯天然产品，其制品具有柔韧性好、拉伸强度高的特点；热熔纤维在制备过程中融化，进而是整个保温毡粘结在一起。本发明创造性的将羊毛纤维与热熔纤维两种原料结合到一起来进行温室大棚保温毡的制备，利用羊毛纤维柔韧性好、拉伸强度高的特点有效缓解了现有草苫、蒲席等传统保温覆盖材料揭盖笨重困难、保温效果差、寿命短以及对薄膜的磨损破坏严重的缺点，制备得到的温室大棚保温毡具有揭盖重量轻、保温效果好、使用寿命长且不污染磨损薄膜的优点，可以充分满足现代温室种植集约化、规模化的发展方向。此外，本发明温室大棚保温毡经气流成网制得，该一次成型的结构也提高了本发明温室大棚保温毡的保温效果。
在本发明的一种优选实施方式中，所述羊毛纤维和热熔纤维的重量比为80～90：15；
本发明中，上述羊毛纤维和热熔纤维的重量比典型但非限定的为(80：15)；(82：15)；(85：15)；(86：15)；(88：15)和(90：15)。
优选的，所述羊毛纤维和热熔纤维的重量比为85：15。
在上述优选实施方式中，所述羊毛纤维为废旧羊毛衣服依次经过切割、乳化、开松制得。
作为一种优选的实施方式，本发明羊毛纤维为废旧羊毛衣服依次经过切割、乳化、开松制得，实现了废物的循环利用，具有环保经济的优点。
在上述优选实施方式中，所述热熔纤维为低熔点涤纶短纤维4080。
作为一种优选的实施方式，上述热熔纤维为低熔点涤纶短纤维4080。低熔点涤纶短纤维4080是以低熔点聚酯和常规聚酯为原料，熔融后从同一喷丝微孔挤出，形成皮芯结构的复合纤维，其皮层熔点一般在110～180℃，芯层熔点在256～260℃。低熔点聚酯和常规聚酯具有良好的相容性，在较低加热温度条件下，皮层熔化而芯层仍保持物理结构，冷却后产生良好的黏连作用，具有较高粘结强力，可取代传统使用的胶水，因而具有热熔黏合温度低，黏合迅速，剥离强度高的特点，广泛应用于仿丝棉、滤材、鞋材、床垫等领域。
在本发明的一种优选实施方式中，所述温室大棚保温毡的毡体两侧还设置有防水层，所述温室大棚保温毡作为夹层设置于两层防水层中间。
优选的，使用粘接的方法将温室大棚保温毡作为夹层与两层防水层粘接在一起。
在本发明的一种优选实施方式中，所述防水层为涂覆有聚烯烃防水涂层的涤纶纤维布；
优选的，所述聚烯烃防水涂层涂覆于涤纶纤维布相对于再生纤维保温层的一侧。
在本发明的一种优选实施方式中，所述聚烯烃防水涂层含有密度为0.75～0.95g/cm2的高压聚乙烯。
根据本发明的一个方面，一种温室大棚保温毡的制备方法，所述制备方法包括以下步骤：
首先将羊毛纤维和热熔纤维混合均匀，随后在气流成网机中成网，并对成网纤维进行热熔并压制，得到保温毡体，然后任选的在保温毡体的两侧设置防水层，得到温室大棚保温毡。
本发明提供的温室大棚保温毡的制备方法包括以下步骤：首先将羊毛纤维和热熔纤维混合均匀，随后在气流成网机中成网，并对成网纤维进行热熔并压制，得到保温毡体，然后任选的在保温毡体的两侧设置防水层，得到温室大棚保温毡。由上述制备方法制得的保温毡不存在化工辅料添加的问题，对温室薄膜不会产生任何腐蚀，此外，本发明温室大棚保温毡一次成型的结构可以直接均衡地展开温室保温，同时也提高了本发明温室大棚保温毡的使用寿命。
在本发明的一种优选实施方式中，所述对成网纤维进行热熔的热熔温度为170～195℃。
本发明中，上述热熔温度典型但非限制性的含量为：170℃、175℃、180℃、185℃、190℃或195℃。
在本发明的一种优选实施方式中，所述对成网纤维进行压制的压力为100～500MPa。
本发明中，上述压制压力典型但非限制性的含量为：100MPa、200MPa、300MPa、400MPa或500MPa。
下面将结合实施例和对比例对本发明的技术方案进行进一步地说明。
实施例1
一种温室大棚保温毡，按重量份数计，所述保温毡包括以下组分：羊毛纤维80份和热熔纤维15份；
上述温室大棚保温毡的制备方法包括以下步骤：
首先将羊毛纤维和热熔纤维混合均匀，随后在气流成网机中成网；然后以170℃的温度、100MPa的压力对成网纤维进行热熔压制，得到保温毡体；最后在保温毡体的两侧粘接设置防水层，得到温室大棚保温毡；
所述防水层为涂覆有聚烯烃防水涂层的涤纶纤维布，所述聚烯烃防水涂层含有密度为0.75g/cm2的高压聚乙烯。
实施例2
一种温室大棚保温毡，按重量份数计，所述保温毡包括以下组分：羊毛纤维82份和热熔纤维15份；
上述温室大棚保温毡的制备方法包括以下步骤：
首先将羊毛纤维和热熔纤维混合均匀，随后在气流成网机中成网；然后以175℃的温度、300MPa的压力对成网纤维进行热熔压制，得到保温毡体；最后在保温毡体的两侧粘接设置防水层，得到温室大棚保温毡；
所述防水层为涂覆有聚烯烃防水涂层的涤纶纤维布，所述聚烯烃防水涂层含有密度为0.78g/cm2的高压聚乙烯。
实施例3
一种温室大棚保温毡，按重量份数计，所述保温毡包括以下组分：羊毛纤维84份和热熔纤维15份；
上述温室大棚保温毡的制备方法包括以下步骤：
首先将羊毛纤维和热熔纤维混合均匀，随后在气流成网机中成网；然后以180℃的温度、200MPa的压力对成网纤维进行热熔压制，得到保温毡体；最后在保温毡体的两侧粘接设置防水层，得到温室大棚保温毡；
所述防水层为涂覆有聚烯烃防水涂层的涤纶纤维布，所述聚烯烃防水涂层含有密度为0.8g/cm2的高压聚乙烯。
实施例4
一种温室大棚保温毡，按重量份数计，所述保温毡包括以下组分：羊毛纤维86份和热熔纤维15份；
上述温室大棚保温毡的制备方法包括以下步骤：
首先将羊毛纤维和热熔纤维混合均匀，随后在气流成网机中成网；然后以185℃的温度、300MPa的压力对成网纤维进行热熔压制，得到保温毡体；最后在保温毡体的两侧粘接设置防水层，得到温室大棚保温毡；
所述防水层为涂覆有聚烯烃防水涂层的涤纶纤维布，所述聚烯烃防水涂层含有密度为0.9g/cm2的高压聚乙烯。
实施例5
一种温室大棚保温毡，按重量份数计，所述保温毡包括以下组分：羊毛纤维88份和热熔纤维15份；
上述温室大棚保温毡的制备方法包括以下步骤：
首先将羊毛纤维和热熔纤维混合均匀，随后在气流成网机中成网；然后以190℃的温度、400MPa的压力对成网纤维进行热熔压制，得到保温毡体；最后在保温毡体的两侧粘接设置防水层，得到温室大棚保温毡；
所述防水层为涂覆有聚烯烃防水涂层的涤纶纤维布，所述聚烯烃防水涂层含有密度为0.85g/cm2的高压聚乙烯。
实施例6
一种温室大棚保温毡，按重量份数计，所述保温毡包括以下组分：羊毛纤维90份和热熔纤维15份；
上述温室大棚保温毡的制备方法包括以下步骤：
首先将羊毛纤维和热熔纤维混合均匀，随后在气流成网机中成网；然后以195℃的温度、500MPa的压力对成网纤维进行热熔压制，得到保温毡体；最后在保温毡体的两侧粘接设置防水层，得到温室大棚保温毡；
所述防水层为涂覆有聚烯烃防水涂层的涤纶纤维布，所述聚烯烃防水涂层含有密度为0.95g/cm2的高压聚乙烯。
对比例1
一种温室大棚保温毡，按重量份数计，所述保温毡包括以下组分：羊毛纤维75份和热熔纤维15份；
上述温室大棚保温毡的制备方法同实施例6。
对比例2
一种温室大棚保温毡，按重量份数计，所述保温毡包括以下组分：羊毛纤维92份和热熔纤维15份；
上述温室大棚保温毡的制备方法同实施例6。
实验例1
为表明本发明制备得到的温室大棚保温毡具有揭盖重量轻、保温效果好、使用寿命长且不污染磨损薄膜的优点，现将实施例1～6和对比例1、2制得的保温毡进行性能检测，其结果如下表所示。
由上表可知，本发明实施例1～6制备得到的温室大棚保温毡的密度≤230kg/m3、25℃导热系数≤0.15W(k·m)、10％变形压缩强度≥60Kpa、体积吸水率≤0.5％、憎水率≥99％、蓄热系数≥0.55W/(m2·k)。
而对比例1由于羊毛纤维比例较低，其25℃导热系数高达0.23W(k·m)，蓄热系数仅为0.42W/(m2·k)；对比例2中由于羊毛纤维比例过高，虽然导热和蓄热性能较好，但是羊毛纤维含量过多导致其结构不稳定，抗压强度差，其使用寿命仅为本发明实施例1～6制备的温室大棚保温毡的一半。
同时，模仿保温覆盖材料被雨雪浸湿的环境，现有的传统保温覆盖材料草苫浸水15min，后捞出重量为原草苫重量的3～4倍，而本发明实施例1～6制备得到的温室大棚保温毡由于防水层的存在，浸水15min后捞出重量没有任何显著的增加。
综上所述，本发明提供的温室大棚保温毡主要由羊毛纤维和热熔纤维充分混合后，经气流成网制得，其中羊毛纤维是一种无公害、可自然降解，绿色环保的纯天然产品，其制品具有柔韧性好、拉伸强度高的特点；热熔纤维在制备过程中融化，进而是整个保温毡粘结在一起。本发明创造性的将羊毛纤维与热熔纤维两种原料结合到一起来进行温室大棚保温毡的制备，利用羊毛纤维柔韧性好、拉伸强度高的特点有效缓解了现有草苫、蒲席等传统保温覆盖材料揭盖笨重困难、保温效果差、寿命短以及对薄膜的磨损破坏严重的缺点，制备得到的温室大棚保温毡具有揭盖重量轻、保温效果好、使用寿命长且不污染磨损薄膜的优点，可以充分满足现代温室种植集约化、规模化的发展方向。此外，本发明温室大棚保温毡经气流成网制得，该一次成型的结构也提高了本发明温室大棚保温毡的保温效果。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (10)

1.一种温室大棚保温毡，其特征在于，所述温室大棚保温毡主要由羊毛纤维和热熔纤维充分混合后，经气流成网制得。
2.根据权利要求1所述的温室大棚保温毡，其特征在于，所述羊毛纤维和热熔纤维的重量比为80～90：15；
优选的，所述羊毛纤维和热熔纤维的重量比为85：15。
3.根据权利要求1所述的温室大棚保温毡，其特征在于，所述羊毛纤维为废旧羊毛衣服依次经过切割、乳化、开松制得。
4.根据权利要求1所述的温室大棚保温毡，其特征在于，所述热熔纤维为低熔点涤纶短纤维4080。
5.根据权利要求1～4任一项所述的温室大棚保温毡，其特征在于，所述温室大棚保温毡的毡体两侧还设置有防水层，所述温室大棚保温毡作为夹层设置于两层防水层中间。
6.根据权利要求5所述的温室大棚保温毡，其特征在于，所述防水层为涂覆有聚烯烃防水涂层的涤纶纤维布。
7.根据权利要求6所述的温室大棚保温毡，其特征在于，所述聚烯烃防水涂层含有密度为0.75～0.95g/cm2的高压聚乙烯。
8.一种根据权利要求1～7任一项所述的温室大棚保温毡的制备方法，其特征在于，所述制备方法包括以下步骤：
首先将羊毛纤维和热熔纤维混合均匀，随后在气流成网机中成网，并对成网纤维进行热熔并压制，得到保温毡体，然后任选的在保温毡体的两侧设置防水层，得到温室大棚保温毡。
9.根据权利要求8所述的温室大棚保温毡的制备方法，其特征在于，所述对成网纤维进行热熔的热熔温度为170～195℃。
10.根据权利要求8所述的温室大棚保温毡的制备方法，其特征在于，所述对成网纤维进行压制的压力为100～500MPa。
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Application publication date: 20181113