WO2020172860A1 - 一种遮光性复合膜及其制备方法和应用 - Google Patents

一种遮光性复合膜及其制备方法和应用 Download PDF

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Publication number
WO2020172860A1
WO2020172860A1 PCT/CN2019/076518 CN2019076518W WO2020172860A1 WO 2020172860 A1 WO2020172860 A1 WO 2020172860A1 CN 2019076518 W CN2019076518 W CN 2019076518W WO 2020172860 A1 WO2020172860 A1 WO 2020172860A1
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WIPO (PCT)
Prior art keywords
light
composite film
fabric
shielding composite
absorbing
Prior art date
Application number
PCT/CN2019/076518
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English (en)
French (fr)
Inventor
陈利民
严瑞祥
Original Assignee
江苏君霖纺织科技有限公司
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 江苏君霖纺织科技有限公司 filed Critical 江苏君霖纺织科技有限公司
Priority to JP2021531157A priority Critical patent/JP7142168B2/ja
Priority to CN201980000564.6A priority patent/CN110139753B/zh
Priority to PCT/CN2019/076518 priority patent/WO2020172860A1/zh
Priority to US17/264,774 priority patent/US20210379875A1/en
Priority to EP19917199.2A priority patent/EP3932666A4/en
Publication of WO2020172860A1 publication Critical patent/WO2020172860A1/zh

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    • A47H23/00—Curtains; Draperies
    • A47H23/02—Shapes of curtains; Selection of particular materials for curtains
    • A47H23/08—Selection of particular materials
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    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/41—Opaque
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/416—Reflective
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability
    • 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
    • B32B2451/00—Decorative or ornamental articles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds

Definitions

  • the invention belongs to the technical field of shading materials, and specifically relates to a shading composite film and a preparation method and application thereof.
  • the present invention proposes a light-shielding composite film and a preparation method and application thereof to improve the portability, durability and/or light-shielding properties of existing light-shielding materials.
  • the present invention proposes a light-shielding composite film, including a non-woven fabric in the middle, and at least one light-reflecting layer and at least one light-absorbing layer on each side of the non-woven fabric.
  • the light-absorbing layers are alternately arranged, wherein the light-reflecting layer is made of resin containing light-absorbing particles, and the light-absorbing layer is made of resin containing light-absorbing particles.
  • the surface density of the non-woven fabric is less than 20g/m 2 , The thickness is 0.05-0.15mm.
  • the light-shielding composite film has a thickness of 0.05-1.0mm (for example, 0.1mm, 0.3mm, 0.5mm, 0.7mm, 0.9mm), and an areal density of 50-100g/m 2 (for example, 60g/ m 2 , 70g/m 2 , 80g/m 2 , 90g/m 2 ).
  • the thickness of each layer in the light-shielding composite film is the same.
  • the light-reflecting particles are prepared by mixing 65-75 parts by weight of light-reflecting material, 0.5-1.5 parts by weight of dispersant, and 24-34 parts by weight of resin, and the light-absorbing particles are prepared by mixing 10-15 parts by weight of light-absorbing material. It is prepared by mixing 0.5-2 weight parts of dispersant, 84-89 weight parts of resin.
  • the content of the reflective particles in the reflective layer is 30.0-40.0wt% (for example, 31.0wt%, 32.0wt%, 33.0wt%, 34.0wt%, 35.0wt%, 36.0wt%, 37.0 wt%, 38.0wt%, 39.0wt%)
  • the content of the resin in the reflective layer is 59.0-69.0wt% (for example, 60.0wt%, 61.0wt%, 62.0wt%, 63.0wt%, 64.0wt%, 65.0wt%, 66.0wt%, 67.0wt%, 68.0wt%)
  • the content of dispersant is 0.5-1.5wt% (for example, 0.6wt%, 0.7wt%, 0.8wt%, 0.9wt%, 1.0wt%, 1.1 wt%, 1.2wt%, 1.3wt%, 1.4wt%).
  • the content of the light-absorbing particles in the light-absorbing layer is 25-35wt% (for example, 26.0wt%, 27.0wt%, 28.0wt%, 29.0wt%, 30.0wt%, 31.0wt%, 32.0wt% %, 33.0wt%, 34.0wt%)
  • the content of the resin in the light-absorbing layer is 64.0-74.0wt% (for example, 65.0wt%, 66.0wt%, 67.0wt%, 68.0wt%, 69.0wt%, 70.0wt% wt%, 71.0wt%, 72.0wt%, 73.0wt%)
  • the content of dispersant is 0.5-1.5wt% (for example, 0.6wt%, 0.7wt%, 0.8wt%, 0.9wt%, 1.0wt%, 1.1wt %, 1.2wt%, 1.3wt%, 1.4wt%).
  • the reflective material is selected from one of titanium dioxide and barium sulfate or a combination thereof.
  • the light-absorbing material is selected from one or more of carbon black, iron black, and graphite.
  • the particle size of the light-reflecting material and the light-absorbing material is 0.1-1 micron.
  • the light-reflecting material and the light-absorbing material may undergo surface modification treatment to increase their compatibility with the resin.
  • the resin is selected from polyethylene PE, polyethylene terephthalate PET, polytrimethylene terephthalate PTT, ethylene-vinyl acetate copolymer EVA, thermoplastic elastomer TPE, thermoplastic polyurethane elastomer One or more of TPU, polyolefin elastomer POE.
  • the material of the non-woven fabric is selected from one or more of polypropylene PP, polyethylene terephthalate PET, polytrimethylene terephthalate PTT, and polyamide PA.
  • the dispersant is ethylhexyl benzoate (EHBA).
  • EHBA ethylhexyl benzoate
  • the present invention also provides a method for preparing a light-shielding composite film, which includes the following steps:
  • the light-reflecting particles and the light-absorbing particles are separately added to the resin and mixed uniformly and then co-extruded to form a film.
  • the mass ratio of the light-reflecting particles to the resin is (34-40): (59-69) ;
  • the mass ratio of the light-absorbing particles and the resin is (10-15): (84-89);
  • the two films and the non-woven fabric are subjected to a hot pressing process to form the light-shielding composite film.
  • the present invention also relates to the application of the light-shielding composite film.
  • the present invention provides a light-shielding fabric, comprising the light-shielding composite film and a fabric attached to one or both surfaces of the light-shielding composite film, and the material of the fabric is compatible with the material of the light-shielding composite film.
  • the woven material is the same.
  • the fabric is woven fabric, knitted fabric or non-woven fabric.
  • the shading fabric is formed by laminating the shading composite film and the fabric through a hot melt adhesive.
  • the present invention also provides a curtain including the above-mentioned shading fabric.
  • the present invention has the following beneficial effects:
  • the preparation method of the present invention is simple, low in cost, high in production efficiency, and easy to industrialized production;
  • the resin of the present invention has a wide source of raw materials, is easy to process into various shapes, and is convenient to use;
  • the light-shielding composite film of the present invention has the advantages of strong light-shielding, not easy to curl, durability, light structure, beautiful color, etc., and can meet the current demand for high-end curtain materials;
  • the full-shading roller blind of the present invention has good shading effect and can be applied to indoor decoration fields such as home furnishings, hospital wards, automobile interior decoration, aircraft interior decoration, etc., and has broad application prospects and market prospects.
  • Figure 1 is a light-shielding composite film in an embodiment of the invention
  • Figure 2 is a light-shielding composite film in another embodiment of the present invention.
  • Figure 3 is a T-mold forming process in an embodiment of the present invention.
  • FIG. 4 is a molding process of a font in an embodiment of the present invention.
  • Figure 5 is a shading fabric in an embodiment of the invention.
  • Fig. 6 is a shading fabric in another embodiment of the invention.
  • the embodiment of the present invention provides a light-shielding composite film, which has a light-reflecting layer 1-light absorbing layer 2-light reflective layer 1-non-woven fabric 3-light reflective layer 1-light absorbing layer 2-light reflective layer 1 Layer structure (the outer reflective layer 1 can contain pigments to present the desired color).
  • the present invention adopts a process method of extrusion to form a film, and realizes the reflective layer-absorbing layer-reflective layer-non-woven fabric-by two hot pressing One-time molding technology of light-shielding polymer film of seven-in-one light-reflecting layer-light-absorbing layer-light-reflecting layer.
  • this seven-layer polymer film The structural characteristics of this seven-layer polymer film are higher than the three-layer film structure of light-reflecting layer-light-absorbing layer-light-reflecting layer. While the shading effect of the light-shielding composite film is guaranteed, the front and back sides of the shading composite film are white or multi-colored.
  • the six-layer composite light-shielding polymer film and a layer of non-woven fabric are heat-pressed to form a light-shielding composite mold, the thickness of which is controlled between 0.05-1.0 mm, preferably, the thickness of each layer is the same.
  • the light-shielding composite film provided in another example of the present invention has a multilayer structure of light-reflecting layer 1-light absorbing layer 2-non-woven fabric 3-light absorbing layer 2-light reflecting layer 1.
  • the light-absorbing layer 2 may be located at the outermost layer of the light-shielding composite film.
  • the preparation method of the light-shielding composite film of the present invention includes:
  • polyethylene PE polyethylene terephthalate PET, polypropylene terephthalate PTT, ethylene-vinyl acetate copolymer EVA, thermoplastic elastomer TPE, thermoplastic polyurethane elastomer TPU, polyolefin elastomer
  • Raw material resins such as POE are added to the above-mentioned reflective particles or light-absorbing particles, and preferably the dispersant EHBA.
  • the materials are uniformly mixed, they are added to different three-screw extruders (or twin-screw extruders), using three-input total Extruding a T-die (or two-input co-extrusion die), extruding and hot pressing to obtain a film; the film thickness is controlled within 0.3-0.4mm through post-processing.
  • the film and the non-woven fabric unwound in the same direction are hot-pressed under certain temperature and pressure conditions to form a light-shielding film of a single-sided non-woven fabric, which is rolled.
  • the film is formed by hot pressing to form a light-shielding film structure with a non-woven fabric structure in the middle of the film on both sides, which is rolled.
  • the material of the non-woven fabric is selected from one or more of polypropylene PP, polyethylene terephthalate PET, polytrimethylene terephthalate PTT, and polyamide PA.
  • the light-reflecting particles and light-absorbing particles are prepared by the following steps:
  • the dried PE resin raw materials are mixed with reflective particles and light-absorbing particles; the mixing weight ratio of PE resin and light-absorbing particles is 64:35, the mixing weight ratio of PE resin and light-absorbing particles is 69:30, and then the dispersant EHBA1 is added.
  • the mixture into the three-screw extruder to ensure that the reflective particle mixed resin, the light absorbing particle mixed resin and the reflective particle mixed resin are respectively guided to the upper, middle and lower layers of the extrusion die, such as Shown in Figure 3.
  • the temperature control of the three-screw extruder is: the temperature of the feeding heating zone is 30°C higher than the melting point of the resin, and the temperature of the three-input co-extrusion T-die is controlled at 25°C higher than the melting point.
  • the film extruded by the three-input co-extrusion T-die is stretched to a thickness of 0.3mm and rolled.
  • the film and the PET non-woven fabric unrolled in the same direction are hot-pressed under the condition of a certain temperature and certain pressure hot pressing roller to form a single-sided film single-sided non-woven fabric light-shielding film with a thickness of 0.4mm and rolled.
  • the film is formed by hot pressing to form a light-shielding film structure with a non-woven fabric structure in the middle of the two films, with a thickness of 0.7 mm, and rolled.
  • the dried PE resin raw materials are mixed with reflective particles and light-absorbing particles; the mixing weight ratio of PE resin and light-absorbing particles is 70:29, the mixing weight ratio of PE resin and light-absorbing particles is 64:35, and then the dispersant EHBA1 is added. 0 parts, on the basis of sufficient mixing, add the mixture into the twin-screw extruder to ensure that the reflective particle mixed resin and the light-absorbing particle resin are respectively directed to the upper and lower layers of the extruded film mouth, as shown in Figure 4.
  • the temperature of the twin-screw extruder is controlled such that the temperature of the feeding heating zone is 30°C higher than the melting point of the resin, and the temperature of the two-input co-extrusion die is controlled to 25°C higher than the melting point.
  • the film and the PET non-woven fabric unrolled in the same direction are hot-pressed under the condition of a certain temperature and certain pressure hot pressing roller to form a single-sided film single-sided non-woven fabric light-shielding film with a thickness of 0.4mm and rolled.
  • the film is formed by hot pressing to form a light-shielding film structure with a non-woven fabric structure in the middle of the two films, with a thickness of 0.7 mm, and rolled.
  • the dried PE resin raw materials are mixed with reflective particles and light-absorbing particles; the mixing weight ratio of PE resin and light-absorbing particles is 64:35, the mixing weight ratio of PE resin and light-absorbing particles is 69:30, and then the dispersant EHBA1 is added. 0 parts, on the basis of fully mixing, add the mixture into the three-screw extruder to ensure that the reflective particle mixed resin is guided to the upper and lower areas of the extrusion die, and the light-absorbing particle mixed resin is guided to the middle area of the extrusion die.
  • the temperature control of the three-screw extruder is as follows: the temperature of the feeding heating zone is 30°C higher than the melting point of the resin, and the temperature of the T die is controlled at 25°C higher than the melting point.
  • the film extruded by the three-input co-extrusion T-die is stretched to a thickness of 0.7mm and rolled.
  • JISL1055 standard is used to check the shading performance, and the shading rate is 100%.
  • the bonding process of membrane materials and textile fabrics is a cutting-edge technology to realize the functionalization of textiles.
  • the use of moisture-cured reactive polyurethane hot-melt adhesives has become the most popular adhesive in the laminated composite industry. It has the characteristics of no pollution to the environment. ; In order to prepare the composite textile fabric with shading function described in this patent, hot-melt composite technology is adopted to compound the development direction of environmental protection.
  • hot-melt and hot-rolling composite technology is used to implement thermal composite technology on one or both sides of the light-shielding composite film, and the textile is thermally bonded to both sides of the light-shielding composite film.
  • the textile used here has the same fiber material as the non-woven fabric or thin woven fabric in the shading composite film;
  • the textile structure can be woven fabric, knitted fabric, or non-woven fabric.
  • the specific preparation process of shading fabric includes:
  • the same thermal composite can be performed on only one surface of the fully shading composite film and the fabric, as shown in FIG. 6.
  • the light-shielding composite film in Example 1 is used to prepare a double-sided composite light-shielding fabric in which both sides are compounded with a PET fabric.
  • the preparation method includes:
  • Example 1 the light-shielding composite film in Example 1 was subjected to a preliminary corona surface treatment.
  • the other side of the light-shielding composite film is compounded with the PET fabric using moisture-curing reactive polyurethane hot melt adhesive, and the double-sided composite light-shielding fabric is obtained after curing for 24 hours.
  • the light-shielding composite film in Example 1 is used to prepare a light-shielding fabric with a single side and a PET fabric composite.
  • the preparation method includes:
  • Example 1 the light-shielding composite film in Example 1 was subjected to a preliminary corona surface treatment.
  • the light-shielding composite film in Example 2 is used to prepare a light-shielding fabric with a single side and a PET fabric composite.
  • the preparation method includes:
  • Example 2 the light-shielding composite film in Example 2 was subjected to a preliminary corona surface treatment.
  • the other side of the light-shielding composite film is compounded with the PET fabric using moisture-curing reactive polyurethane hot melt adhesive, and the double-sided composite light-shielding fabric is obtained after curing for 24 hours.
  • Example 3 Replace the fabric in Example 3 with polyamide PA, and the rest is the same as Example 3.
  • Example 3 The light-shielding composite film in Example 3 was replaced with the light-shielding composite film in Comparative Example 1, and the rest was the same as Example 3.
  • the width of the shading fabric is set to 100cm, and the curling degree is within 2% as qualified.
  • the present invention adopts the above-mentioned technical scheme to obtain the full shading and non-curling roller blind, and realizes the high shading and flatness of the full shading roller blind by combining the shading composite film and the fabric.

Abstract

一种遮光性复合膜及其制备方法和应用，遮光性复合膜包括中间的无纺布（3）以及位于无纺布每侧的至少一个反光层（1）和至少一个吸光层（2），反光层（1）和吸光层（2）交替设置，其中，反光层（1）由包含反光粒子和树脂制成，吸光层（2）由包含吸光粒子和树脂制成。遮光性复合膜具有遮光性强、不易卷曲、经久耐用、结构轻巧、色彩美观等优点。

Description

一种遮光性复合膜及其制备方法和应用 技术领域
本发明属于遮光材料技术领域，具体涉及一种遮光性复合膜及其制备方法和应用。
背景技术
在人们的日常生活中，家居环境以及各大宾馆、办公室、会议室等公共建筑时常需要对房间的光亮度进行控制，减少因日光对生活和工作带来的麻烦。
在卧室、影剧院、多媒体室、暗室等对光线要求较高的地方，常常需要一种全遮光的卷帘面料。
对于遮光窗帘织物，不仅要求美观，其关键考量指标是对日光应当具有良好的遮光性，同时还必须具有良好的各项牢度性能。
目前市场上的全遮光面料大多经过涂层处理，但是经涂层的面料其悬垂性能和透气性变差，且涂层易氧化起泡脱落，影响遮光效果。
目前市场上的卷帘面料由于面料材料和膜材料不同，在不同的温度的条件下会出现不同方向的卷曲，影响卷帘的外观和遮光度。
目前市场上各种形式的遮光卷帘，遮光性差，为了实现高遮光效果，大多采用多层卷帘、加厚材质的方法，这些遮光卷帘的生产方法，无法满足装饰纺织品的简洁、轻便的流行发展趋势，为此开发高遮光、轻便、简洁的遮光卷帘成为一种市场需求。
发明内容
有鉴于此，本发明提出一种遮光性复合膜及其制备方法和应用，用于改善现有遮光材料的轻便性、耐用性和/或遮光性。
为实现上述目的，一方面，本发明提出一种遮光性复合膜，包括中间的无纺布以及位于所述无纺布每侧的至少一个反光层和至少一个吸光层，所述反光层和所述吸光层交替设置，其中，所述反光层由包含反光粒子的树脂制成，所述吸光层由包含吸光粒子的树脂制成，优选地，所述无纺布面密度小于20g/m 2，厚度0.05-0.15mm。
在一些实施例中，所述遮光性复合膜的厚度为0.05-1.0mm(例如0.1mm、0.3mm、0.5mm、0.7mm、0.9mm)，面密度为50-100g/m 2(例如60g/m 2、70g/m 2、80g/m 2、90g/m 2)。
在一些实施例中，所述遮光性复合膜中各层的厚度相同。
在一些实施例中，所述反光粒子通过将反光材料65-75重量份、分散剂0.5-1.5重量份、树脂24-34重量份混合制备而成，所述吸光粒子通过将吸光材料10-15重量份、分散剂0.5-2重量份、树脂84-89重量份混合制备而成。
在一些实施例中，所述反光层中所述反光粒子的含量为30.0-40.0wt％(例如31.0wt％、32.0wt％、33.0wt％、34.0wt％、35.0wt％、36.0wt％、37.0wt％、38.0wt％、39.0wt％)，所述反光层中所述树脂的含量为59.0-69.0wt％(例如60.0wt％、61.0wt％、62.0wt％、63.0wt％、64.0wt％、65.0wt％、66.0wt％、67.0wt％、68.0wt％)，分散剂的含量为0.5-1.5wt％(例如0.6wt％、0.7wt％、0.8wt％、0.9wt％、1.0wt％、1.1wt％、1.2wt％、1.3wt％、1.4wt％)。
在一些实施例中，所述吸光层中所述吸光粒子的含量为25-35wt％(例如26.0wt％、27.0wt％、28.0wt％、29.0wt％、30.0wt％、31.0wt％、32.0wt％、33.0wt％、34.0wt％)，所述吸光层中所述树脂的含量为64.0-74.0wt％(例如65.0wt％、66.0wt％、67.0wt％、68.0wt％、69.0wt％、70.0wt％、71.0wt％、72.0wt％、73.0wt％)，分散剂的含量为0.5-1.5wt％(例如0.6wt％、0.7wt％、0.8wt％、0.9wt％、1.0wt％、1.1wt％、1.2wt％、1.3wt％、1.4wt％)。
在一些实施例中，所述反光材料选自钛白粉、硫酸钡中的一种或其组合。
在一些实施例中，所述吸光材料选自碳黑、铁黑、石墨中的一种或多种。
在一些实施例中，所述反光材料和所述吸光材料的粒径为0.1-1微米。
出于分散稳定的需要，所述反光材料和所述吸光材料可以经过表面改性处理，以增加其和树脂的相容性。
在一些实施例中，所述树脂选自聚乙烯PE、聚对苯二甲酸乙二酯PET、聚对苯二甲酸丙二醇酯PTT、乙烯-醋酸乙烯共聚物EVA、热塑性弹性体TPE、热塑性聚氨酯弹性体TPU、聚烯烃弹性体POE中的一种或多种。
在一些实施例中，所述无纺布的材质选自聚丙烯PP、聚对苯二甲酸乙二酯PET、聚对苯二甲酸丙二醇酯PTT、聚酰胺PA中的一种或多种。
在一些实施例中，所述分散剂为苯甲酸乙基己酯(EHBA)。苯甲酸乙基己酯(EHBA)可以提高反光材料和吸光材料在树脂体系中的分散稳定性，减少粒子的团聚作用。
另一方面，本发明还提出一种制备遮光性复合膜的方法，包括如下步骤：
S1、制备反光粒子和吸光粒子；
S2、将所述反光粒子和所述吸光粒子分别加入树脂中混合均匀后共挤出成型得到薄膜，优选地，所述反光粒子与树脂的质量比为(34-40)∶(59-69)；所述吸光粒子和树脂的质量比为(10-15)∶(84-89)；
S3、将两个所述薄膜与无纺布经热压工艺形成所述遮光性复合膜。
又一方面，本发明还涉及遮光复合膜的应用。
本发明提出一种遮光面料，包括所述遮光性复合膜和贴合在所述遮光性复合膜的一个或两个表面上的面料，所述面料的材料与所述遮光性复合膜中的无纺布材料相同。
在一些实施例中，所述面料为机织物、针织物或无纺布。
在一些实施例中，所述遮光面料由所述遮光性复合膜和所述面料通过热熔胶复合贴合而成。
另外，本发明还提出一种帘状物，包括上述遮光面料。
与现有技术相比，本发明具有以下有益效果：
(1)本发明的制备方法简单、成本低、生产效率高，易于工业化生产；
(2)本发明的树脂原料来源广，易加工成各种形状，使用方便；
(3)本发明的遮光复合膜具有遮光性强、不易卷曲、经久耐用、结构轻巧、色彩美观等优点，可以满足当前高档窗帘材料的需求；
(4)本发明的全遮光卷帘的遮光效果好，可应用于家居、医院病房、汽车内部装饰、飞机内部装饰等室内装饰领域，具有广阔的应用前景和市场前景。
附图说明
图1为本发明实施例中的遮光性复合膜；
图2为本发明另一实施例中的遮光性复合膜；
图3为本发明实施例中的T字模成型工艺；
图4为本发明实施例中的一字模成型工艺；
图5为本发明实施例中的遮光面料；
图6为本发明另一实施例中的遮光面料。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明白，以下结合具体实施例，并参照附图，对本发明作进一步的详细说明。
遮光性复合膜的制备
如图1所示，本发明实施例提供一种遮光性复合膜，其具有反光层1-吸光层2-反光层1-无纺布3-反光层1-吸光层2-反光层1的多层结构(外侧的反光层1可包含颜料以呈现所需要的颜色)，本发明采用挤塑成膜的加工方法，通过两次热压实现了反光层-吸光层-反光层-无纺布-反光层-吸光层-反光层七位一体的遮光高分子膜一次成型技术，该七层高分子膜的结构特征，较之反光层-吸光层-反光层的三层膜结构，在具有更高的遮光效果的同时，又保证了遮光复合膜正、反面均为白色或多元色的视觉效果。通过热压处理，将该六层复合遮光高分子膜和一层无纺布热压成遮光性复合模，其厚度控制在0.05-1.0mm之间，优选地，各层的厚度相同。
如图2所示，在本发明另一例提供的遮光性复合膜具有反光层1-吸光层2-无纺布3-吸光层2-反光层1的多层结构。
当遮光性复合膜的颜色可以为黑色时，吸光层2可以位于遮光性复合膜的最外层。
本发明遮光性复合膜的制备方法，包括：
(1)将一定粒径(例如0.1-1微米)的钛白粉，或高黑炭黑粉，分别加入环保有机酯分散剂EHBA中搅拌混合均匀后，加入树脂(例如聚乙烯PE、聚对苯二甲酸乙二酯PET、聚对苯二甲酸丙二醇酯PTT、乙烯-醋酸乙烯共聚物EVA、热塑性弹性体TPE、热塑性聚氨酯弹性体TPU、聚烯烃弹性体POE树脂)搅拌混料，加入双螺杆造粒机造粒，得到白色反光粒子，或黑色吸光粒子，其中，白色反光粒子中的树脂与反光层中的树脂相同，黑色吸光粒子中的树脂与吸光层中的树脂相同。
(2)在聚乙烯PE、聚对苯二甲酸乙二酯PET、聚对苯二甲酸丙二醇酯PTT、乙烯-醋酸乙烯共聚物EVA、热塑性弹性体TPE、热塑性聚氨酯弹性体TPU、聚烯烃弹性体POE等原料树脂分别加入上述的反光粒子或吸光粒子，并优选加入分散剂EHBA，经混料均匀后，分别加入不同的三螺杆挤出机(或双螺杆挤出机)中，采用三输入共挤出T字模(或二输入共挤出一字模)，挤出热压得到一薄膜；通过后处理将薄膜厚度控制在0.3-0.4mm。将该薄膜和同方向放卷过来的无纺布在具有一定温度一定压力条件下热压，形成单面膜单面无纺布的遮光膜，打卷。
再同样的方法制膜热压形成两边膜中间无纺布结构为一体的遮光膜结构，打卷。
其中，无纺布的材质选自聚丙烯PP、聚对苯二甲酸乙二酯PET、聚对苯二甲酸丙二醇酯PTT、聚酰胺PA中的一种或多种。
在一些实施例中，反光粒子和吸光粒子通过以下步骤制备：
将粒径为0.7微米的钛白粉70.0份，加入环保有机酯分散剂EHBA1.0份拌混合均匀后，加入经过干燥的PE树脂29.0重量份搅拌混料，加入双螺杆造粒机造粒，得到反光白色粒子，
将粒径为0.5微米的高黑炭黑粉12.0重量份，加入环保有机酯分散剂EHBA 1.0份拌混合均匀后，加入经过干燥的PE树脂87.0份搅拌混料，加入双螺杆造粒机造粒，得到吸光黑色粒子。
实施例1
将干燥后的PE树脂原料分别和反光粒子和吸光粒子混合；PE树脂和反光粒子的混合重量比例为64∶35，PE树脂和吸光粒子的混合重量比例为69∶30，然后加入分散剂EHBA1.0份在充分混合的基础上，将混合料分别加入三螺杆挤出机中，确保反光粒子混合树脂、吸光粒子混合树脂和反光粒子混合树脂分别导向挤出模口的上层、中层和下层，如图3所示。
三螺杆挤出机的温度控制为：进料加热区的温度高于树脂熔点30℃，三输入共挤出T字模的温度控制在高于熔点25℃。
将三输入共挤出T字模挤出的薄膜拉伸至0.3mm的厚度，打卷。
将薄膜和同方向放卷过来的PET无纺布在具有一定温度一定压力热压辊条件下热压，形成单面膜单面无纺布的遮光膜，厚度为0.4mm，打卷。
再同样的方法制膜热压形成两边膜中间无纺布结构为一体的遮光膜结构，厚度为0.7mm，打卷。
实施例2
将干燥后的PE树脂原料分别和反光粒子和吸光粒子混合；PE树脂和反光粒子的混合重量比例为70∶29，PE树脂和吸光粒子的混合重量比例为64∶35，然后加入分散剂EHBA1.0份，在充分混合的基础上，将混合料分别加入双螺杆挤出机中，确保反光粒子混合树脂和吸光粒子树脂分别导向挤出膜口的上层和下层，如图4所示。
双螺杆挤出机的温度控制为进料加热区的温度高于树脂熔点30℃，二输入共挤出一字模的温度控制在高于熔点25℃。
将二输入共挤出一字模挤出的薄膜拉伸至0.3mm的厚度。
将薄膜和同方向放卷过来的PET无纺布在具有一定温度一定压力热压辊条件下热压，形成单面膜单面无纺布的遮光膜，厚度为0.4mm，打卷。
再同样的方法制膜热压形成两边膜中间无纺布结构为一体的遮光膜结构，厚度为0.7mm，打卷。
对比例1
将干燥后的PE树脂原料分别和反光粒子和吸光粒子混合；PE树脂和反光粒子的混合重量比例为64∶35，PE树脂和吸光粒子的混合重量比例为69∶30，然后加入分散剂EHBA1.0份，在充分混合的基础上，将混合料分别加入三螺杆挤出机中，确保反光粒子混合树脂导向挤出模口的上下区，吸光粒子混合树脂导向挤出模口的中间区。
三螺杆挤出机的温度控制为：进料加热区的温度高于树脂熔点30℃，T口模的温度控制在高于熔点25℃。
将三输入共挤出T字模挤出的薄膜拉伸至0.7mm的厚度，打卷。
采用JISL1055标准进行遮光性能检查，遮光率要求为100％。
遮光面料的制备
膜材料与纺织面料复合的粘合加工是实现纺织品功能化的前沿技术，采用以湿气固化反应型聚氨酯热熔胶成为层压复合行业中最值得推广使用的胶粘剂，具有对环境无污染的特点；为了制备本专利所述的具有遮光功能的复合纺织品面料，采用热熔复合技术，复合环保发展的方向。
热熔复合具有遮光功能的复合纺织品面料的制备：采用热溶胶和热轧复合技术，在遮光性复合膜的一侧或者两侧实施热复合技术，纺织品热粘在遮光性复合膜的两侧，使之成为具有一定的平整度、牢度又具有全遮光特性的纺织品面料；在此所使用的纺织品，其纤维材料与遮光性复合膜中的无纺布或薄型梭织布的材料相同；就纺织品的组织结构，可以采用机织物、针织物、或无纺布等。
通过选择和无纺布或薄型梭织布相同材料的纺织品为复合材料，可以保证纺织品和遮光性复合膜在一定温度条件下热变形温度一致，保持复合后不卷曲。
遮光面料的具体制备过程包括：
第一、对遮光性复合膜进行前期电晕表面处理，改变膜的表面化学结构，提高遮光膜的表面张力、增加粘结点，提高牢度。
第二、采用湿气固化反应型聚氨酯热熔胶，在90-110℃熔化热熔胶，并注入热复合机中，将遮光性复合膜的一个面和面料4进行复合，固化熟成24小时然后，将遮光复合膜的另一个面，和面料4进行相同的热复合，将遮光性复合膜热粘结在两层面料4中间，形成图5结构的遮光面料。
在一些实施例中，可以仅在全遮光复合膜的其中一个面和织物进行相同的热复合，如图6所示。
实施例3
该实施例以实施例1中的遮光性复合膜制备两面均与PET面料复合的双面复合遮光面料。制备方法包括：
第一、对实施例1中的遮光性复合膜进行前期电晕表面处理。
第二、采用湿气固化反应型聚氨酯热熔胶，在95℃熔化热熔胶，并注入热复合机中，将遮光性复合膜的一个面和PET材料的面料进行复合，固化熟成24小时。
第三、将遮光性复合膜的另一面采用湿气固化反应型聚氨酯热熔胶与PET面料复合，固化熟成24小时后得出双面复合遮光面料。
实施例4
该实施例以实施例1中的遮光性复合膜制备单面与PET面料复合的遮光面料。制备方法包括：
第一、对实施例1中的遮光性复合膜进行前期电晕表面处理。
第二、采用湿气固化反应型聚氨酯热熔胶，在95℃熔化热熔胶，并注入热复合机中，将遮光性复合膜的一个面和PET材料的面料进行一次复合，固化熟成24小时后得到遮光面料。
实施例5
该实施例以实施例2中的遮光性复合膜制备单面与PET面料复合的遮光面料。制备方法包括：
第一、对实施例2中的遮光性复合膜进行前期电晕表面处理。
第二、采用湿气固化反应型聚氨酯热熔胶，在95℃熔化热熔胶，并注入热复合机中，将遮光性复合膜的一个面和PET材料的面料进行复合，固化熟成24小时。
第三、将遮光性复合膜的另一面采用湿气固化反应型聚氨酯热熔胶与PET面料复合，固化熟成24小时后得出双面复合遮光面料。
对比例2
将实施例3中的面料替换为聚酰胺PA，其余与实施例3相同。
对比例3
将实施例3中的遮光性复合膜替换为对比例1中的遮光性复合膜，其余与实施例3相同。
表1
Figure PCTCN2019076518-appb-000001
Figure PCTCN2019076518-appb-000002
注：遮光面料的宽度设定为100cm，卷曲度在2％内为合格。
由表1可知，当遮光性复合膜中不包含中间的无纺布时(对比例3)，遮光面料在温度变化过程中会出现明显的卷曲，而采用本发明的遮光性复合膜时可以显著降低遮光面料的卷曲度。另外，当遮光性复合膜与面料的材质不相同时(对比例2)，遮光面料出现明显的卷曲，这是由于遮光性复合膜与面料的热变形温度不同所致。
遮光卷帘的制备
在上述全遮光功能复合纺织品面料的基础上，采用常规剪裁、缝制的方法加工生产出不同结构、形式的卷帘。
本发明采用上述技术方案获得的全遮光不卷曲卷帘，通过将遮光性复合膜和面料复合，实现全遮光卷帘的高遮光性和平整度。
以上所述的具体实施例，对本发明的目的、技术方案和有益效果进行了进一步详细说明，应理解的是，以上所述仅为本发明的具体实施例而已，并不用于限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种遮光性复合膜，其特征在于，包括中间的无纺布以及位于所述无纺布每侧的至少一个反光层和至少一个吸光层，所述反光层和所述吸光层交替设置，其中，所述反光层由包含反光粒子的树脂制成，所述吸光层由包含吸光粒子的树脂制成，优选地，所述无纺布面密度小于20g/m 2，厚度0.05-0.15mm。
  2. 根据权利要求1所述的遮光性复合膜，其中，所述遮光性复合膜的厚度为0.05-1.0mm(例如0.1mm、0.3mm、0.5mm、0.7mm、0.9mm)，面密度为50-100g/m 2(例如60g/m 2、70g/m 2、80g/m 2、90g/m 2)，优选地，所述遮光性复合膜中各层的厚度相同。
  3. 根据权利要求1所述的遮光性复合膜，其中，所述反光粒子通过将反光材料65-75重量份、分散剂0.5-1.5重量份、树脂24-34重量份混合制备而成，所述吸光粒子通过将吸光材料10-15重量份、分散剂0.5-2重量份、树脂84-89重量份混合制备而成，优选地，所述分散剂为苯甲酸乙基己酯(EHBA)。
  4. 根据权利要求1所述的遮光性复合膜，其中，所述反光层中所述反光粒子的含量为30.0-40.0wt％(例如31.0wt％、32.0wt％、33.0wt％、34.0wt％、35.0wt％、36.0wt％、37.0wt％、38.0wt％、39.0wt％)，所述反光层中所述树脂的含量为59.0-69.0wt％(例如60.0wt％、61.0wt％、62.0wt％、63.0wt％、64.0wt％、65.0wt％、66.0wt％、67.0wt％、68.0wt％)，分散剂的含量为0.5-1.5wt％(例如0.6wt％、0.7wt％、0.8wt％、0.9wt％、1.0wt％、1.1wt％、1.2wt％、1.3wt％、1.4wt％)，优选地，所述分散剂为苯甲酸乙基己酯(EHBA)。
  5. 根据权利要求1所述的遮光性复合膜，其中，所述吸光层中所述吸光粒子的含量为25-35wt％(例如26.0wt％、27.0wt％、28.0wt％、29.0wt％、30.0wt％、31.0wt％、32.0wt％、33.0wt％、34.0wt％)，所述吸光层中所述树脂的含量为64.0-74.0wt％(例如65.0wt％、66.0wt％、67.0wt％、68.0wt％、69.0wt％、70.0wt％、71.0wt％、72.0wt％、73.0wt％)， 分散剂的含量为0.5-1.5wt％(例如0.6wt％、0.7wt％、0.8wt％、0.9wt％、1.0wt％、1.1wt％、1.2wt％、1.3wt％、1.4wt％)，优选地，所述分散剂为苯甲酸乙基己酯(EHBA)。
  6. 根据权利要求1所述的遮光性复合膜，其中，所述反光材料选自钛白粉、硫酸钡中的一种或其组合，所述吸光材料选自碳黑、铁黑、石墨中的一种或多种，优选地，所述反光材料和所述吸光材料的粒径为0.1-1微米。
  7. 根据权利要求1所述的遮光性复合膜，其中，所述树脂选自聚乙烯PE、聚对苯二甲酸乙二酯PET、聚对苯二甲酸丙二醇酯PTT、乙烯-醋酸乙烯共聚物EVA、热塑性弹性体TPE、热塑性聚氨酯弹性体TPU、聚烯烃弹性体POE中的一种或多种，优选地，所述无纺布的材质选自聚丙烯PP、聚对苯二甲酸乙二酯PET、聚对苯二甲酸丙二醇酯PTT、聚酰胺PA中的一种或多种。
  8. 一种制备权利要求1-7中任一项所述遮光性复合膜的方法，包括如下步骤：
    S1、制备反光粒子和吸光粒子；
    S2、将所述反光粒子和所述吸光粒子分别加入树脂中混合均匀后共挤出成型得到薄膜，优选地，所述反光粒子与树脂的质量比为(34-40)∶(59-69)；所述吸光粒子与树脂的质量比为(10-15)∶(84-89)；
    S3、将两个所述薄膜与无纺布经热压工艺形成所述遮光性复合膜。
  9. 一种遮光面料，包括权利要求1-7中任一项所述遮光性复合膜和贴合在所述遮光性复合膜的一个或两个表面上的面料，所述面料的材料与所述遮光性复合膜中的无纺布材料相同，优选地，所述面料为机织物、针织物或无纺布，优选地，所述遮光面料由所述遮光性复合膜和所述面料通过热熔胶复合贴合而成。
  10. 一种帘状物，包括权利要求9所述遮光面料。
PCT/CN2019/076518 2019-02-28 2019-02-28 一种遮光性复合膜及其制备方法和应用 WO2020172860A1 (zh)

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