CN1761849A - 使用抗菌物质处理电冰箱部件的抗菌方法 - Google Patents
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Abstract
常规的包含抗菌物质的电冰箱部件存在随时间发生变色、在制造工艺过程中电冰箱部件的表面被腐蚀、或者变白效果降低、和生产成本增加的问题。本发明涉及使用银系抗菌物质处理电冰箱部件的抗菌方法。该抗菌方法包括的步骤为：通过挤出工艺形成厚度相对小于部件成品厚度的部件预成型品；将相对于树脂总重量为0.05到0.1重量％的小球形银系抗菌物质与树脂混合；和使用混合有抗菌物质的树脂在部件的预成型品表面上形成抗菌层。可通过层压由混合有抗菌物质的树脂制成的膜形成抗菌层，或者通过多次挤出在电冰箱部件的表面上形成抗菌层。另外，银系抗菌物质可包括60到80重量％的直径为几十到几百纳米的Ag离子氧化物，10到20重量％的磷酸锆、和10到20重量％的氧化锌。根据本发明，有电冰箱的生产成本降低、并且抗菌和变白效果得到改善的优点。
Description
技术领域
本发明涉及电冰箱内部的抗菌处理方法，具体地，涉及使用银系抗菌物质处理电冰箱部件的抗菌方法。
背景技术
在电冰箱内储藏各种物质。在电冰箱内总是保持大量湿气。具体地，因为电冰箱冷藏室的温度相对高于冷冻室的温度，根据储藏物质的种类、量、状态等，包括霉菌或细菌的微生物可容易地在冷藏室中生长。
如果包括霉菌或细菌的微生物照这样在电冰箱内部生长，储藏物质的新鲜度迅速变差，并且不利于卫生。另外，存在电冰箱内部部件如由树脂制成的搁板和蔬菜箱特别是衬里变色的问题。
为了解决现有技术中的这些问题，即，为了改进抗菌和变白效果，已经将锌系或铜系无机抗菌物质、有机抗菌物质等加入到生产电冰箱部件的树脂中，从而赋予抗菌和变白效果。换句话说，电冰箱部件通过挤出用于生产这些部件的、已经直接加入抗菌物质的树脂而生产。
然而，这种现有技术中有以下问题。
首先，因为用于赋予抗菌和变白效果的常规抗菌物质为高活性的锌系或铜系物质，它们在光、热等的影响下随时间变成黄色。
另外，因为抗菌物质直接与用于生产电冰箱部件的树脂混合，应该直接加入大量例如0.5到5重量％的相对昂贵的锌系或铜系无机抗菌物质或有机抗菌涂料，以保持抗菌性能和变白程度。因此，考虑到它们的成本，存在许多问题。
此外，在常规衬里的情况中，混合有抗菌物质的树脂应该在210到250℃的高温下挤出。其它部件例如搁板或蔬菜箱应该在至少300℃的温度下注射成型。因此，在高温下相对薄弱的有机抗菌物质可容易地碳化，从而不能适当地履行其功能。在加工过程中容易产生气体，导致衬里或部件的表面上产生腐蚀。另外，变白效果变差，产生黄变现象。另外，有例如挤出过程中存在涌浪的严重问题。
特别地，因为使用了相对大量的抗菌物质，存在当通过使用混合有抗菌物质的树脂成型生产电冰箱部件时发生上述那些故障的问题。
发明内容
因此，构思了本发明以解决现有技术中的问题。本发明的目的是提供电冰箱部件，其中即使它们在使用长时间之后，它们的抗菌和变白效果也不变差。
本发明的另一个目的是提供在制造过程中能够最大限度地保持抗菌物质的抗菌和变白效果的抗菌方法。
根据用于实现上述目的的本发明的一个方面，提供了使用银系抗菌物质处理电冰箱部件的抗菌方法，其包括步骤：通过挤出工艺形成厚度相对小于部件成品厚度的部件预成型品；将相对于树脂总重量为0.05到0.1重量％的小球形银系抗菌物质与树脂混合；和使用混合有抗菌物质的树脂在部件的预成型品表面上形成抗菌层。
可通过层压由混合有抗菌物质的树脂制成的膜形成抗菌层。
可通过多次挤出(multi-extrusion)在电冰箱部件的表面上形成抗菌层。
根据本发明的另一个方面，提供了使用银系抗菌物质处理电冰箱部件的抗菌方法，其包括步骤：将小球形银系抗菌物质与树脂混合；和使用混合有银系抗菌物质的树脂通过注射成型形成部件成品的预成型品。
银系抗菌物质可包括60到80重量％的直径为几十到几百纳米的Ag离子氧化物，10到20重量％的磷酸锆、和10到20重量％的氧化锌。
可将相对于树脂总重量为约0.05到0.1重量％的小球形银系抗菌物质与树脂混合。
部件成品的预成型品可通过使用混合有银系抗菌物质的树脂的母料(master batch)方法形成。
对于如上构造的本发明使用银系抗菌物质处理电冰箱部件的抗菌方法，其优点在于部件不变色，并且其抗菌性能相对持久。此外，因为仅使用相对小量的抗菌物质，存在当生产电冰箱部件时相对较少发生故障的优点。
具体实施方式
在下文中详细描述使用银系抗菌物质处理电冰箱部件的抗菌方法的优选实施方案。
首先，本发明使用的抗菌物质包括60到80重量％的直径为几十到几百纳米(nm)的Ag离子氧化物，10到20重量％的磷酸锆、和10到20重量％的氧化锌。其中，Ag离子氧化物执行抗菌和变白功能，而磷酸锆和氧化锌起到基质的作用，使得Ag离子可以稳定地存在。
另外，本发明中使用小球形抗菌物质。这是用于解决当抗菌物质以极细粉末形式存在时不能以适当的量与树脂混合时发生的问题。也就是说，细粉末形式的抗菌物质被制成小球，然后以所需量与树脂混合。
与树脂混合的抗菌物质的量相对于树脂的总量为约0.05到0.1％。可以仅使用如此少量抗菌物质的原因在于在混合工艺过程中全部抗菌物质可以与树脂混合。
下面，描述本发明的抗菌方法的实施方案。对于电冰箱部件如衬里、搁板、蔬菜箱、管道、管道盖等的生产，其中例如，衬里可以通过挤出方法生产，挤出电冰箱部件的预成型品，使其厚度略小于相关部件成品的厚度。
在如此挤出的电冰箱部件的预成型品上用混合有抗菌物质的树脂形成抗菌层。为此，由混合有抗菌物质的树脂形成膜。树脂膜被层压在电冰箱部件预成型品的表面上。这时，如果只在部件暴露于电冰箱内部的部分上形成抗菌层，则可以使抗菌物质的使用量最小化。
通过使用抗菌膜在电冰箱部件预成型品的表面上形成抗菌层而完成电冰箱部件。电冰箱部件预成型品与抗菌膜的厚度总和应该为电冰箱部件的设计厚度。用于参考目的，假定电冰箱部件预成型品的厚度为t，优选抗菌层的厚度为约t/50到t/40。
同时，作为本发明的另一个实施方案，可以通过多次挤出形成抗菌层，也就是说，首先挤出电冰箱部件预成型品，然后将预成型品置于模具中，用混合有抗菌物质的树脂在其上面形成抗菌层。
其中，预成型品也经过成型，使厚度相对小于电冰箱部件成品的厚度。然后，可以通过使用混合有抗菌物质的树脂形成抗菌层而获得设计厚度。当如本发明的实施方案通过多次挤出形成抗菌层时，在部件预成型品的整个表面上形成抗菌层。因此，在部件暴露于电冰箱内部的面及其相对面上形成抗菌层。
下面描述本发明的另一个实施方案。在这一实施方案中，将银系抗菌物质形成小球，随后将其与生产电冰箱部件的树脂混合。将树脂熔融，然后注射成型，形成电冰箱部件。这用于形成可以注射成型的电冰箱部件。
也就是说，使银系抗菌物质形成小球，并将约0.05到0.1重量％的银系抗菌物质与树脂混合。将混合有抗菌物质的树脂熔融并置于注射模具中，以生产所需的电冰箱部件。
在这种情况中，一次形成所需的电冰箱部件。用于这种方法的抗菌物质具有上述组成，并形成为小球，然后置于作为基础材料的树脂中。
此外，使用母料方法用于使银系抗菌物质在电冰箱部件中分布更均匀。通过母料方法，银系抗菌物质在整个电冰箱部件中均匀分布。通过使用这种方法，抗菌物质存在于整个电冰箱部件中，使得抗菌效果长久保持并从而得到改善。
通过以上具体描述的本发明使用银系物质处理电冰箱部件的抗菌方法，有可能获得以下优点。
在本发明中，因为使用以磷酸锆和氧化锌作为基质的Ag离子氧化物作为抗菌物质，抗菌物质具有相对的化学稳定性。因此，在至少300℃高温的生产过程中不发生变色，以及抗菌性能不变差，从而相对改善变白和抗菌性质。
此外，因为抗菌物质为具有化学稳定性的物质，即使其长期连续地暴露于紫外线下时，其不变色并且抗菌性能不降低。因此包括霉菌或细菌的微生物被抑制而不能在电冰箱部件表面上生长，从而改善储藏食物的新鲜度并保持电冰箱内部环境更清洁。
同时，因为在本发明中抗菌物质形成小球并然后与树脂混合，可以精确地将所需量的抗菌物质与树脂混合。因为只有将精确量的抗菌物质与树脂混合，才能降低生产成本，并且可以使由于投入不必要的大量抗菌物质可能发生的故障最小化。因此，存在当形成涂层或生产电冰箱部件时可以改善部件的表面质量的优点。
本发明的范围不限于上述实施方案，其仅由附加的权利要求限定。对于本领域技术人员，显而易见，可在附加的权利要求限定的本发明的范围内进行多种改进和改变。
Claims (7)
1.使用银系抗菌物质处理电冰箱部件的抗菌方法，其包括步骤：
通过挤出工艺形成厚度相对小于部件成品厚度的部件预成型品；
将相对于树脂总重量为0.05到0.1重量％的小球形银系抗菌物质与树脂混合；和
使用混合有抗菌物质的树脂在部件的预成型品表面上形成抗菌层。
2.权利要求1的方法，其中抗菌层通过层压由混合有抗菌物质的树脂制成的膜形成。
3.权利要求1的方法，其中抗菌层通过多次挤出在电冰箱部件表面上形成。
4.使用银系抗菌物质处理电冰箱部件的抗菌方法，其包括步骤：
将小球形银系抗菌物质与树脂混合；和
使用混合有银系抗菌物质的树脂通过注射成型形成部件成品的预成型品。
5.权利要求2到4中任一项的方法，其中银系抗菌物质包括60到80重量％的、直径为几十到几百纳米的Ag离子氧化物，10到20重量％的磷酸锆，和10到20重量％的氧化锌。
6.权利要求4的方法，其中将相对于树脂总重量为0.05到0.1重量％的小球形银系抗菌物质与树脂混合。
7.权利要求2到4中任一项的方法，其中部件成品的预成型品通过使用混合有银系抗菌物质的树脂的母料方法形成。
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|---|---|---|---|---|
| CN101891965A (zh) * | 2010-08-09 | 2010-11-24 | 粟斌 | 一种自动杀菌消毒的银离子树脂及其制造方法和用途 |
| CN105291517A (zh) * | 2015-03-13 | 2016-02-03 | 合肥华凌股份有限公司 | 抗菌板件和冰箱 |
| CN106432904A (zh) * | 2016-08-31 | 2017-02-22 | 孟玲 | 一种抗菌置物板 |
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| WO2007061238A2 (en) * | 2005-11-23 | 2007-05-31 | Lg Electronics, Inc. | Refrigerator |
| KR100866044B1 (ko) * | 2006-04-26 | 2008-11-03 | 권우상 | 은(銀)이온제가 함유된 고경도 항균성 무기질도료를 도포 코팅한 씽크 |
| KR102429239B1 (ko) * | 2020-12-01 | 2022-08-05 | 엘지전자 주식회사 | 냉장고 |
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| US3010861A (en) * | 1957-04-19 | 1961-11-28 | Noc Chemical Arts Inc De | Manufacture of transfer-decorated extrusion products |
| JPH0618899B2 (ja) * | 1987-06-30 | 1994-03-16 | 品川燃料株式会社 | 抗菌性ゼオライト含有フィルム |
| JPH0428987A (ja) * | 1990-05-23 | 1992-01-31 | Matsushita Refrig Co Ltd | ドレン水受皿 |
| JPH05302781A (ja) | 1992-04-27 | 1993-11-16 | Matsushita Electric Ind Co Ltd | 冷蔵庫野菜室 |
| JP3214914B2 (ja) * | 1992-08-28 | 2001-10-02 | 株式会社日立製作所 | 冷蔵庫 |
| JPH08210761A (ja) | 1995-02-06 | 1996-08-20 | Matsushita Refrig Co Ltd | 冷蔵庫 |
| KR970028334A (ko) | 1995-11-29 | 1997-06-24 | 배순훈 | 냉장고 |
| US6187456B1 (en) * | 1999-04-09 | 2001-02-13 | Milliken & Company | Method of inhibiting color change in a plastic article comprising silver-based antimicrobials |
| CN1290719A (zh) * | 2000-11-13 | 2001-04-11 | 宜兴市四通家电配套厂 | 一种抗菌塑料及冰箱门封条 |
| CN1294144A (zh) * | 2000-11-14 | 2001-05-09 | 上海博纳科技发展有限公司 | 一种抗菌塑料母粒及其在制备抗菌塑料制品中的应用 |
| US6929705B2 (en) * | 2001-04-30 | 2005-08-16 | Ak Steel Corporation | Antimicrobial coated metal sheet |
| US20040137202A1 (en) * | 2002-10-25 | 2004-07-15 | The Procter & Gamble Company | Multifunctional adhesive food wraps |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101891965A (zh) * | 2010-08-09 | 2010-11-24 | 粟斌 | 一种自动杀菌消毒的银离子树脂及其制造方法和用途 |
| CN105291517A (zh) * | 2015-03-13 | 2016-02-03 | 合肥华凌股份有限公司 | 抗菌板件和冰箱 |
| CN106432904A (zh) * | 2016-08-31 | 2017-02-22 | 孟玲 | 一种抗菌置物板 |
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| GB0518475D0 (en) | 2005-10-19 |
| MXPA05010566A (es) | 2005-11-23 |
| WO2004088224A1 (en) | 2004-10-14 |
| US7781497B2 (en) | 2010-08-24 |
| US20060198961A1 (en) | 2006-09-07 |
| KR100639733B1 (ko) | 2006-11-01 |
| GB2419109A (en) | 2006-04-19 |
| KR20050111607A (ko) | 2005-11-25 |
| GB2419109B (en) | 2006-12-13 |
| CA2518592A1 (en) | 2004-10-14 |
| CN100408951C (zh) | 2008-08-06 |
| CA2518592C (en) | 2012-02-21 |
| AU2004225615A1 (en) | 2004-10-14 |
| AU2004225615B2 (en) | 2009-12-17 |
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