WO2020252734A1 - 一种抗菌家电内衬板 - Google Patents

一种抗菌家电内衬板 Download PDF

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Publication number
WO2020252734A1
WO2020252734A1 PCT/CN2019/092025 CN2019092025W WO2020252734A1 WO 2020252734 A1 WO2020252734 A1 WO 2020252734A1 CN 2019092025 W CN2019092025 W CN 2019092025W WO 2020252734 A1 WO2020252734 A1 WO 2020252734A1
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Prior art keywords
antibacterial
home appliance
substrate
passivation layer
coating
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PCT/CN2019/092025
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English (en)
French (fr)
Inventor
丁旭东
蒋学文
孙铮
方宏
倪子丹
徐瑛
Original Assignee
墙煌新材料股份有限公司
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Application filed by 墙煌新材料股份有限公司 filed Critical 墙煌新材料股份有限公司
Priority to PCT/CN2019/092025 priority Critical patent/WO2020252734A1/zh
Publication of WO2020252734A1 publication Critical patent/WO2020252734A1/zh

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    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material

Definitions

  • the utility model relates to the field of home appliance manufacturing, in particular to an antibacterial home appliance lining board.
  • Traditional home appliance lining boards mainly include engineering plastics, alumina boards, embossed aluminum boards, etc., which have defects in different degrees in terms of aesthetics, anti-aging and oxidation.
  • the demand for functional plates such as antibacterial plates is increasing.
  • CN207065051U discloses "an antibacterial home appliance sheet” that uses a spraying process, which is mainly used for home appliance housings of 2mm or more, and the paint waste and pollution are serious;
  • CN 105838241B “A method for preparing antibacterial coatings for home appliances” discloses three Similar to the application methods of different antibacterial mechanisms and types of antibacterial agents, it does not involve the pre-roll coating process, nor does it involve the application in the field of home appliance lining boards.
  • the present invention provides an antibacterial lining board for household appliances that has a more obvious antibacterial effect and a high affinity with the casing foam material.
  • An antibacterial home appliance lining board includes a substrate, a first pretreatment passivation layer covering one surface of the substrate, a foaming affinity back paint layer covering the surface of the first pretreatment passivation layer, and a coating A second pre-treatment passivation layer on the other surface of the substrate, a primer layer covering the surface of the second pre-treatment passivation layer, and an antibacterial top coat covering the surface of the primer layer; the antibacterial The top coating is a pre-rolled coating of nano inorganic antibacterial agent.
  • the coating prepared by the pre-roll coating process has the advantages of high efficiency, environmental protection, high coating utilization, dense coating, and good flexibility, which can meet the processing requirements of re-forming after coating.
  • the foaming affinity back paint layer is a strong polar epoxy resin coating, which can increase the affinity with the polyurethane foam of the thermal insulation core layer.
  • the substrate is an aluminum plate, a galvanized steel sheet or an aluminum-zinc coated steel sheet.
  • the thickness of the substrate does not exceed 1 mm.
  • the antibacterial surface coating of the present invention is coated by a pre-roll coating process, which is highly efficient, environmentally friendly, and has high coating utilization; and the coating is dense and flexible, which can meet the processing requirements for re-forming after coating.
  • the utility model adopts an antibacterial surface coating, and the antibacterial agent is uniformly mixed in the coating. By controlling the process conditions, more antibacterial agents are floated on the coating surface, and the antibacterial effect is more obvious.
  • the back of the utility model is coated with high-polarity back paint such as epoxy, which improves the affinity with the thermal insulation foamed polyurethane material, and improves the structural strength of the home appliance housing.
  • the substrate of the present invention is preferably an aluminum plate or a galvanized steel plate, which fully guarantees the anti-corrosion requirements of the lining in a complex environment.
  • the utility model can meet sheet metal processing such as bending and stamping, has obvious antibacterial effect, and has a high affinity with the shell foam material. It can be used as the inner liner material of all household appliances, including refrigerators, display cabinets, microwave ovens, etc. Oven, etc., especially suitable for medicine cabinets, ordering cabinets, etc.
  • Figure 1 is a schematic diagram of the structure of an antibacterial home appliance lining board of the utility model.
  • Marking instructions 1. Substrate, 2. Pre-treatment passivation layer, 3. Foaming affinity back paint layer, 4. Primer layer, 5. Antibacterial top coat.
  • Figure 1 is a schematic diagram of the structure of an antibacterial home appliance lining board of the present invention.
  • the antibacterial home appliance lining board of this embodiment uses a 0.4mm aluminum plate as the substrate, and is painted by a pre-roller coating production line.
  • passivation is performed on both sides of the substrate by a roller coating process to obtain the first as shown in Figure 1.
  • a pre-treatment passivation layer 21 and a second pre-treatment passivation layer 22, and then the epoxy system foam affinity back paint layer on the back (to obtain the two pre-treatment passivation layers shown in Figure 1 2: the first front Treatment passivation layer and the second pre-treatment passivation layer), the front side is primer (primer layer 4) + inorganic silver ion antibacterial topcoat (antibacterial topcoat), in which the addition amount of antibacterial agent is 0.6% of the paint quality .
  • the board is processed into a sheet through slitting and cross-cutting, and then through punching, bending, biting and other processes to complete the home appliance lining shell, and then the coiled tube enters the foaming production line together with the outer shell.
  • the substrate is made of 0.3mm aluminized zinc steel plate, and the pre-rolling production line is used for coating.
  • passivation is performed on both sides of the substrate using a roll coating process (the two pre-treatment passivation layers 2 shown in Figure 1 are obtained: the first pre-treatment passivation layer and the second pre-treatment passivation layer), and then the back Coating epoxy system foam affinity paint layer (to obtain foam affinity back paint layer 3 shown in Figure 1), the front side is primer (primer layer 4) + inorganic silver ion, copper ion composite antibacterial top paint ( Antibacterial surface coating), wherein the addition amount of antibacterial agent is 2% of the mass of the coating.
  • the board is processed into a sheet through slitting and cross-cutting, and then through punching, bending, biting and other processes to complete the home appliance lining shell, and then the coiled tube enters the foaming production line together with the outer shell.

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Abstract

本实用新型提供了一种抗菌家电内衬板，涉及家电制造技术领域，包括基板，还包括覆于基板其中一个表面的第一前处理钝化层、覆于所述第一前处理钝化层表面的发泡亲和背漆层、覆于所述基板另一个表面的第二前处理钝化层、覆于所述第二前处理钝化层表面的底漆层、覆于所述底漆层表面的抗菌面涂层；所述抗菌面涂层为掺杂纳米无机抗菌剂的预辊涂涂层；所述发泡亲和背漆层为强极性的环氧树脂涂层。该家电内衬板可满足折弯、冲压等钣金加工，抗菌效果明显、与壳体发泡料亲和率高。

Description

一种抗菌家电内衬板 技术领域
本实用新型涉及家电制造领域，尤其涉及一种抗菌家电内衬板。
背景技术
随着家电行业特别是白色家电的迅猛发展，开发具有抗菌等功能类的家电内衬涂层板，应用于冰柜、医药柜、酒柜、展示柜等食品接触类家电内衬，是体现一个家电制造厂家和其供应商对工艺质量水平、管理水平和产品创新能力的重要标志。
传统的家电内衬板主要有工程塑料、氧化铝板、压花铝板等，在美观度、抗老化氧化等方面都不同程度的存在缺陷。随着涂层板在家电领域的应用，诸如抗菌等功能类板材的需求日益高涨。如CN207065051U公开了采用喷涂工艺的“一种抗菌家电板材”，主要用于2mm以上的家电壳体，涂料浪费及污染严重；CN 105838241B“一种家电用抗菌涂层的制备方法”，公开了三类不同抗菌机理和种类的抗菌剂的应用方法，但并没有涉及预辊涂涂装工艺，也没有涉及在家电内衬板领域的应用。
有鉴于此，本申请人对此进行专门研究，开发出一种抗菌家电内衬板，本案由此产生。
实用新型内容
为了解决现有技术中存在的上述缺陷，本实用新型提供了提供一种抗菌效果更明显、与壳体发泡料亲和率高的家电抗菌内衬板。
为了实现上述目的，本实用新型采取的技术方案如下：
一种抗菌家电内衬板，包括基板，还包括覆于基板其中一个表面的第一前处理钝化层、覆于所述第一前处理钝化层表面的发泡亲和背漆层、覆于所述基板另一个表面的第二前处理钝化层、覆于所述第二前处理钝化层表面的底漆层、覆于所述底漆层表面的抗菌面涂层；所述抗菌面涂层为纳米无机抗菌剂预辊涂涂层。采用预辊涂工艺制备的涂层，具有高效、环保、涂料利用率高、涂层致密，柔韧性好的优点，可满足涂装后再成型的加工要求。所述发泡亲和背漆层为强极性的环氧树脂涂层，可以提高与保温芯层聚氨酯发泡料的亲和率。
作为优选，所述基板采用铝板、镀锌钢板或镀铝锌钢板。
作为优选，所述基板厚度不超过1mm。
本实用新型能实现如下技术效果：
(1)本实用新型抗菌面涂层采用预辊涂工艺涂装，高效、环保，涂料利用率高；且涂层致密，柔韧性好，可满足涂装后再成型的加工要求。
(2)本实用新型采用抗菌面涂层，抗菌剂均匀混合于涂料中，通过控制工艺条件，使更多抗菌剂浮于涂层表面，使抗菌效果更加明显。
(3)本实用新型结构设计合理，所采用的原料和生产工艺环保，且方便现场成型加工。
(4)本实用新型的背面涂装环氧等高极性背漆，提高与保温发泡聚氨酯材料的亲和率，提高家电壳体结构强度。
(5)本实用新型的基板优选铝板或镀铝锌钢板，充分保证内衬复杂环境中的防腐要求。
(6)本实用新型可满足折弯、冲压等钣金加工，抗菌效果明显、与壳体发泡料亲和率高，可作为所有家电的内衬板材料，包括冷柜、展示柜、微波炉、烤箱等，特别适用于医药柜、点菜柜等。
附图说明
图1为本实用新型一种抗菌家电内衬板的结构示意图。
标注说明：1、基板，2、前处理钝化层，3、发泡亲和背漆层，4、底漆层，5、抗菌面涂层。
具体实施方式
为了使本实用新型的技术手段及其所能达到的技术效果，能够更清楚更完善的揭露，兹提供了两个实施例，并结合附图作如下详细说明：
如图1所示，图1为本实用新型一种抗菌家电内衬板的结构示意图。
实施例1
本实施例的一种抗菌家电内衬板，基板采用0.4mm铝板，采用预辊涂流水生产线进行涂装，首先在基板两面采用辊涂涂装工艺进行钝化处理得到图1中所示的第一前处理钝化层21和第二前处理钝化层22，然后背面为环氧体系发泡亲和背漆层(得到图1中所示的两层前处理钝化层2：第一前处理钝化层和第二前处理钝化层)，正面为底漆(底漆层4)+无机银离子抗菌面漆(抗菌面涂层)，其中抗菌 剂的添加量为涂料质量的0.6％。该板材经纵剪、横剪加工成片材，然后经冲孔、折弯、咬合等工艺制作完成家电内衬壳体，盘管后再与外壳体一起进入发泡生产线。
实施例2
本实施例的一种抗菌家电内衬板，基板采用0.3mm镀铝锌钢板，采用预辊涂流水生产线进行涂装。首先在基板两面采用辊涂涂装工艺进行钝化处理(得到图1中所示的两层前处理钝化层2：第一前处理钝化层和第二前处理钝化层)，然后背涂环氧体系发泡亲和漆层(得到图1中所示的发泡亲和背漆层3)，正面为底漆(底漆层4)+无机银离子、铜离子复合抗菌面漆(抗菌面涂层)，其中抗菌剂的添加量为涂料质量的2％。该板材经纵剪、横剪加工成片材，然后经冲孔、折弯、咬合等工艺制作完成家电内衬壳体，盘管后再与外壳体一起进入发泡生产线。
以上内容是结合本实用新型的优选实施方式对所提供技术方案所作的进一步详细说明，不能认定本实用新型具体实施只局限于上述这些说明，对于本实用新型所属技术领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本实用新型的保护范围。

Claims (3)

  1. 一种抗菌家电内衬板，包括基板，其特征在于：还包括覆于基板其中一个表面的第一前处理钝化层、覆于所述第一前处理钝化层表面的发泡亲和背漆层、覆于所述基板另一个表面的第二前处理钝化层、覆于所述第二前处理钝化层表面的底漆层、覆于所述底漆层表面的抗菌面涂层；所述抗菌面涂层为纳米无机抗菌剂预辊涂涂层；所述发泡亲和背漆层为强极性的环氧树脂涂层。
  2. 如权利要求1所述的一种抗菌家电内衬板，其特征在于：所述基板采用铝板、镀锌钢板或镀铝锌钢板。
  3. 如权利要求2所述的一种抗菌家电内衬板，其特征在于：所述基板厚度不超过1mm。
PCT/CN2019/092025 2019-06-20 2019-06-20 一种抗菌家电内衬板 WO2020252734A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1844270A (zh) * 2006-05-17 2006-10-11 河北科技大学 纳米抗菌粉末涂料及其微悬浮一步制造法
CN207065051U (zh) * 2017-07-30 2018-03-02 江苏立霸实业股份有限公司 一种抗菌家电板材
CN107962835A (zh) * 2017-11-22 2018-04-27 青岛海尔特种钢板研制开发有限公司 一种具有抗菌效果的彩色预涂钢板及其制备工艺
CN209693211U (zh) * 2018-09-10 2019-11-26 墙煌新材料股份有限公司 一种抗菌家电内衬板

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1844270A (zh) * 2006-05-17 2006-10-11 河北科技大学 纳米抗菌粉末涂料及其微悬浮一步制造法
CN207065051U (zh) * 2017-07-30 2018-03-02 江苏立霸实业股份有限公司 一种抗菌家电板材
CN107962835A (zh) * 2017-11-22 2018-04-27 青岛海尔特种钢板研制开发有限公司 一种具有抗菌效果的彩色预涂钢板及其制备工艺
CN209693211U (zh) * 2018-09-10 2019-11-26 墙煌新材料股份有限公司 一种抗菌家电内衬板

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