CN1308924A - 含皮肤保护成分的吸收性物品 - Google Patents
含皮肤保护成分的吸收性物品 Download PDFInfo
- Publication number
- CN1308924A CN1308924A CN01111337A CN01111337A CN1308924A CN 1308924 A CN1308924 A CN 1308924A CN 01111337 A CN01111337 A CN 01111337A CN 01111337 A CN01111337 A CN 01111337A CN 1308924 A CN1308924 A CN 1308924A
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- layer
- skin
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- wearer
- absorbent commodity
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Abstract
已有技术中的吸收性物品使穿用者感到闷湿且引起不快感,因此为了保护皮肤而必需涂敷护肤液或霜,其手续繁琐。按照本发明的吸收性物品,在与穿用者的皮肤接触的部分上,配置含有保护皮肤成分的保护层50和使上述保护层一直保护到在穿用者的皮肤需要上述保护成分时的保持层51。在达到高湿度和高温度时,上述保持层51溶解,使上述皮肤保护成分出现,并在穿用者的皮肤上形成油性膜。
Description
本发明涉及一次性尿布、生理用卫生巾、短内裤衬里、吸尿垫等吸收性物品。更具体地说,涉及可以为穿用者的皮肤提供皮肤保护成分的吸收性物品。
近年来为了吸收排泄物对一次性尿布、生理用卫生巾、短内裤衬垫、吸尿垫等吸收性物品的使用很多。在这些吸收性物品的穿着过程中,由于穿用者的汗、尿、粪便、经血、分泌物等排泄物,使吸收性物品内的湿度增加,容易使穿用者有闷湿感。特别是在排泄物直接接触的会阴部附近和与配置了弹性件的位置连接的部分例如在尿布的腰围和腿周边附近等上面,这种情况更加明显。为了防止闷湿而可以在穿用者的皮肤上涂敷含皮肤保护成分的护肤液、霜。可是涂敷时存在弄脏手和操作繁琐的缺点。特别对于不能自己涂敷的幼儿和老人等,必须由护理者进行涂敷,这样便使护理者进行很繁琐的操作。
针对这样的现有技术中的问题,特表平10-509895号和特表平10-509896号公开了具有涂有护肤剂组合物的顶片的尿布。这种护肤剂组合物是用于保护皮肤的润肤剂和在一定温度下液化的固化剂的混合物。可是在该制品的保管中和在移动中达到一定温度时,由于固化剂开始液化,所以必要量的润肤剂在穿着之前就流失了,因而在穿用时往往出现表现效果的润肤剂量过少的情况。并且因护肤剂是不溶于水的,所以当流动的护肤剂组合物在顶片表面上散开时,就会阻碍顶片的透液性能,结果使吸收性物品的吸水性能下降。
本发明的目的是要解决上述课题,提供一种可以为穿用者的皮肤有效供给皮肤保护成分的吸收性物品。
本发明的另一目的是提供不会使吸收性物品的吸收性能下降和能为穿用者皮肤供给保护成分的吸收性物品。
本发明的吸收性物品是包括透液性顶片、底片及夹在这两片之间的吸收芯的吸收性物品,其特征在于在与穿用者的皮肤接触的面上设置含有皮肤保护成分的层和覆盖上述层的表面的保持层 ,上述保持层在25℃以上温度下是水溶性促进层,和/或在相对湿度为30%以上的湿度下是吸湿性或水溶性促进的层。
在本发明的吸收性物品中,存在设置了在与穿用者皮肤接触的表面上含有皮肤保护成分的层(下层)和覆盖上述层表面的保护层(上层)的区域。上述保持层(上层)保持着下层中含有的皮肤保护成分直到需要的状态。例如在穿着吸收性物品时,在出汗或进行排泄以及在吸收性物品内的温度增加的情况下,上述保持层流动或在水分中溶解,下层或包含在下层中的皮肤保护成分出现在表面上,皮肤保护成分附着在穿用者的皮肤上。因此按照本发明的吸收性物品,皮肤保护成分在适当时或必要时附着在皮肤上,并且该成分不会附着在皮肤以外的部分上,不容易产生浪费。另外在本发明中,由于保持层为水溶性的,所以设置上述区域不会防碍顶片的透液性能。
上述保持层可以是由从分子量为100~50万的聚环氧乙烷、分子量为100~1万的聚丙二醇、聚合度为300~4000和皂化度为50~99的聚乙烯醇组成的组中选取的至少一种化合物形成。
上述含有皮肤保护成分的层最好由在皮肤上形成油性膜的化合物构成,这时含有皮肤保护成分的层最好在35℃以上具有流动性。
上述含有皮肤保护成分的层可以由从液体聚异戊二烯、角鲨烷、姥鲛烷、地蜡、纯地蜡、微晶蜡、聚乙烯粉末、液体石蜡、凡士林和石蜡组成的组中选出的至少一种化合物形成。
上述各层形成的区域可以配置在上述顶片的表面上。或者吸收性物品具有用于防止侧漏的护翼和/或防止从穿用者的腿周围泄漏的腿部罗口,上述各层形成的区域配置在上述防漏护翼和/或腿罗口的表面上。
图1是从受液侧看去的本发明的吸收性物品即尿布的平面图。
图2是沿图1所示尿布的Ⅱ-Ⅱ线剖切的断面图。
图3是形成含有皮肤保护成分的层和保护层的工序图。
图4的(A)、(B)和(C)是表示各个层的涂敷图案的其它例子的平面图。
图5的(A)、(B)和(C)是表示各个层的涂敷结构的其它例子的平面图。
图6是表示本发明的其它方式的局部断面图。
下面参照附图说明作为本发明吸收性物品一例的一次性尿布。图1是从受液侧看去的本发明所述作为吸收性物品的尿布的平面图,图2是沿图1所示尿布的Ⅱ-Ⅱ线剖切的断面图。
图1中所示的本发明的一次性尿布1是所谓砂漏状的开放式的尿布,具有在使用时对应于穿用者腹部的前部2A,在使用时相应于臀部和/或背部的后部2C和在使用时相应于裆部的中间部2B。设从上述前部经裆部至上述后部的方向为Y方向(纵向),与该方向垂直的方向为X方向。如图2所示,设朝向穿用者侧的方向为Z方向。
该一次性尿布1由朝向穿用者侧的透液性的顶片10,朝向外侧的不透液性的底片11和夹在上述顶片10与底片11之间的吸收芯12构成。顶片10、底片11和吸收芯12是砂漏形状。顶片10和底片11在吸收芯12的周围通过热熔粘接剂互相接合。
在穿用时后部2C的后护翼(在X方向突出的部分)重叠在前部2A的底片11上,设置在上述后部2C的后护翼的顶片10的两缘部上的搭接部分18和设置在前部2A的底片11的前护翼(在X方向突出的部分)上的搭接部分17搭接在穿用者的腰部。设置在腰部上的弹性件16弹性收缩,其结果使一次性尿布1在腰周围上保持固定在穿用者的身体上。
本发明的尿布1在顶片10上的两侧部4,4侧部配置不透液性的带状片30,在该带状片30的中央侧缘上设置弹性件31。其相对侧的侧缘和前后端部粘接在顶片10的上面。结果在穿用尿布1时形成一对中央侧的侧缘立起式防止横漏用的防漏罗口32,防漏罗口32的Z方向的上方接触在穿用者的皮肤上。
在尿布1的X方向两侧部4,4上没有吸收芯的区域(吸湿区域的外侧)上向尿布1的Y方向延伸出弹性件35粘接固定的顶片10和底片11之间。通过使该弹性件35向Y方向弹性收缩使顶片10和底片11在尿布1的X方向的两侧部4,4收缩,在穿用尿布1时在穿用者的腿部周围形成与皮肤接触的腿部罗口。
在本发明的吸收性物品1的吸收芯11存在的区域中,在顶片10的受液侧的表面上配置含有皮肤保护成分的层50,并且保持层51形成覆盖着层50表面的叠层。
层50最好用防止人体皮肤受刺激的能在皮肤的最外层表面上形成油膜的化合物形成。在皮肤上形成的油性膜保护皮肤不受排泄物和表面活性剂等的化学刺激以及因尿布与皮肤接触而产生的物理刺激。作为形成油膜的化合物的性状在25℃时可以是液体·半固体(蜡状)·固体中的任何一种,为了在皮肤上形成铺展的油性膜,优选的是在25℃以上,最好是温度在35℃以上为液体或半固体。当然在比人体体温高的温度即40℃以上的温度下也不能形成液体或半固体的化合物是难以形成油性膜的。所以作为形成本发明油性膜的化合物的性状优选是在40℃以下,更优选的是在37℃以下的温度是液体或半固体。
为了不使形成在皮肤上的油性膜在溶解于汗和排泄物等的水分中而流失,形成油性膜的化合物最好是不溶于水的。但也可以是与水混合振荡时乳化的化合物。另外形成油性膜的化合物最好是具有亲水基的。这时即使在顶片10的表面上扩展,也不容易降低顶片10的透液性。另外,因为形成油性膜的化合物是附着在穿用者的皮肤上,所以最好是无色、白色或近似于无色或白色的。
作为形成油性膜的化合物,可以举出以下的例子。但只要是形成油性膜的化合物,也可以使用下述化合物之外的化合物。另外,以下举出的化合物可以单独或者将两种以上的组合使用。
(1)、植物油:葡萄籽油、红花油、豆油等于性油、芝麻油、玉米油、棉籽油、菜籽油、向日葵油等半干性油和鳄梨油、杏仁油、橄榄油、山茶花油、山茶油、西番莲(パ-シック)油和花生油等非干性油、其中,如果考虑到历时稳定性,最好是半干性油或不干性油。
(2)、植物脂:可可脂、棕榈油、棕榈仁油、木蜡油、椰子油等
(3)、动物油脂:龟油、貂油、蛋黄油、牛脂、猪脂等
(4)鱼油:沙丁鱼油、秋刀鱼油、鲭鱼油、鲱鱼油等
(5)动物性蜡:鲸蜡、蜂蜡、羊毛脂等
(6)植物性蜡:巴西棕榈蜡、小烛树蜡、霍霍巴油等
(7)碳氢化合物:液体性聚异戊二烯、角鲨烷、姥鲛烷、地蜡、纯地蜡、微晶蜡、聚乙烯粉末、液体石蜡、凡士林和石蜡等
(8)对上述(1)~(7)中的油性成分在不饱和部分中加氢的化合物。
在形成以上所述油性膜的化合物中,为了对皮肤无刺激性,优选的是在香型化状品中使用油脂,最好是价格便宜且安全性高的凡士林。
在由形成油性膜的化合物构成的层50中还可以含有其它保护皮肤的成分。例如牡丹、黄芩、小连翘、春黄菊、桃叶、枇杷叶、艾蒿、紫苏叶提取物等抗炎成分、蚕丝纤蛋白、蚕丝胶蛋白、胶原、海草提取物等保湿成分、绿茶、竹提取物等抗氧化(除臭)成分,天然果酸(苹果酸、琥珀酸、柠檬酸、酒石酸和乳酸等)、碱金属盐和碱土金属盐(磷酸、碳酸等)等pH调整成分。这些成分也可以包含在下述的保持层51中。
另外,保持层51优选的是由在相对湿度30%以上时显示吸湿性或水溶性的化合物形成。更优选的是由在相对湿度在50%以上时显示吸湿性或水溶性的化合物形成。在穿着吸收性物品1期间,在存在穿用者的汗和排泄物的水分时,保持层51吸湿,因而保持层51就具有流动性,在保持层51移动后,含有皮肤保护成分的层50露出。或者保持层51一旦吸湿,上述层50的成分就穿过保持层51出现在保持层51的表面上。
因此在穿用时保持层51与穿用者的皮肤接触并且保护着层50。一旦皮肤保护成分所需要的条件达到时,在表面上就会出现含有皮肤保护成分的层50,并形成油性膜。这样,层50受湿度的影响,在物品保管和移动等过程中,如只有温度升高,则层50几乎不发生变化。只有在真正必要时层50的皮肤保护成分才能露出在表面上,效率高,并且不容易产生浪费。
另外,为了在穿用吸收性物品1期间使层50的皮肤保护成分在必要时能确实出现在表面上并附着在皮肤上,保持层51最好是在25℃以上的温度,优选的是30℃以上温度表现出吸湿性或水溶解性。当然,如果用在比人体温度高的温度即40℃以上时不显示出吸湿性或水溶性或流动性的化合物形成保持层51时,在必要时皮肤保护成分也难以出现在表面上。故保持层51最好是在40℃以下,优选的是在37℃以下表现出吸湿性或水溶解性或流动性。
为了保护层50的皮肤保护成分直至必要使用之时,作为构成保持层51的化合物的性状,最好在25℃是半固体(包括蜡状态、凝胶态、溶胶状态)或固体。将这些化合物加热使之变成液体状或半固体状后涂抹。在构成保持层51的化合物融点较高的情况下,设有保持层51的基材(顶片)和含有已涂抹了皮肤保护成分的层50受到损坏后,给人的织物感往往会下降。因此,化合物的融点优选的是在100℃以下,更优选的是在90℃以下。在必需在溶解于水中的状态下涂敷的化合物中,因为在顶片10上涂敷后,必须在干燥后形成保持层51,所以最好用即使在加热干燥时也不会变质从而不降低织物感的化合物。
另外,因为保持层51直接与穿用者的皮肤接触,所以最好是对皮肤无刺激的化合物。例如健康皮肤的PH值是4.5~7.5,所以与此相应,保持层的PH值优选是4.7~7.5,更优选的是5.0~7.0。另外因为保持层51有时附着在穿用者的皮肤上,所以最好是无色、白色或近似白色。
作为构成保持层51的具体化合物是从由分子量100~50万的聚氧化乙烯,分子量为100~1万的聚丙二醇,聚合度为300~4000且皂化度为50~99的聚乙烯醇组成的组中选取的至少一种化合物形成。其中最好在常温下是固体或半固体,在25~40℃以上时变成半固体或液体的分子量为500~3000的聚氧化乙烯,并且最好是熔点为35~40℃的分子量为700~1000的聚氧化乙烯。
另外因为在使用聚乙烯醇的情况下,保持层的融点下降,柔软性增加,对皮肤的物理性刺激减弱,所以作为增塑剂可添加乙二醇、丙二醇、1,4-丁二醇、1,5-戊二醇、1,6-己二醇、丙二醇、丙三醇、2,3-丁二醇、1,3-丁二醇、二甘醇、三甘醇等二醇类物质。
层50,51可以通过在顶片10(基材)各层上进行一定量的涂敷而形成。例如可以使用印刷技术采用的凹印涂敷或苯胺涂敷工艺等。并且应用热敏粘接剂(热熔粘接剂等)的涂敷工艺,通过热熔涂敷使构成层的化合物熔融,可以举出(1)通过齿轮泵定量挤出后,利用窄条涂料机通过与基材接触的模具在基材上直接涂敷的方法或(2)通过模具挤出,然后通过压空喷涂在基材上的方法或(3)通过模具压成纤维状直接接合在基材上的方法。另外也可以用染色技术,把基材直接放入涂敷剂中后,挤出剩余的涂敷剂的渗渍法。
为了通过最小的涂敷量发挥最大限度的涂敷剂的效果,最好尽量在基材纤维上部涂敷,在上述方法中最好应用印刷技术(凹印涂敷或苯胺涂敷),热敏性粘接剂涂敷技术。例如,如图3所示,从辊60供给基材,涂料机61在基材表面上涂敷层50。再用涂料机62在已涂敷的层50的表面上涂敷层51。把得到的形成有层50,51的基材作为本发明所述吸收性物品的顶片使用。另外层50,51的涂敷方式可以像图2所示那样全面均匀涂敷,也可以是如图4(A)所示那样的条状或图4(B)所示那样的水珠状,也可以是图4(C)所示那样的格子状。
另外层50和层51的层构造不仅可以像图2所示那样重叠形成单纯的二层,也可以如图5(A)所示那样,以层50包围层51的形式形成。这时层51涂敷完之后再涂敷层50,另外也可将层51预先涂在层50上,从而使层50不能渗入顶片等基材中。另外,可以像图5(B)所示那样使位于中央的层50局部不连续地配置。这时层50可以通过图4(A)~(C)中的任何一种方式构成。另外,也可以如图5(C)所示那样预先使层50部分露出在层51的表面上。
如果层50的涂敷量越大越多,则保护穿用者皮肤的效果越高。特别是在用疏水性的皮肤保护剂的情况下,为了不损害顶片的透液性,涂敷量优选的为0.1~50g/m2,更优选的是1~30g/m2。另外,为了使层51的涂敷量在达到湿度和温度等确定条件时,使包含在层50中的成分出现,层51的涂敷量优选的为0.1~50g/m2;更优选的是1~30g/m2。
配置有上述层50,51的顶片10是利用例如1.1~5.5dtex的聚烯烃类-聚酯类等合成纤维、人造丝等半合成纤维、纸浆、棉花等天然纤维制成的面密度为10~60g/m2的无纺布。特别是,作为顶片10最好采用强度高、加工性优良的热接合无纺布。此外,也可以使用由亲水处理的疏水性纤维、亲水性纤维等形成的点粘结、透气(エアスル-)、纺粘、射流喷网无纺布。此外,也可使用把聚乙烯(密度为0.86~1.1g/m3)或聚丙烯(密度0.89~1.2g/m3)等单独地或几种混合材料挤出后通过热风或热针制成带有透液性通孔的片(所谓穿孔网),在薄膜上配置纤维集合体,然后通过热风、热针制成带有透液性通孔的片。如果是具有按照JIS L 1092(纤维制品的防水性试验方法、耐水试验A法(低水压法),0~3000mmH2O的耐水性)测定的透液、吸收性,并且具有按照JIS L 1906(一般长纤维无纺布试验方法在透气性弗雷泽型法5~700cm3/cm2/秒)的透气性网。
底片11是不透液体的并且是透气的,由例如聚烯烃类的树脂片等制成。或者利用无纺布作底片,也可以在底片与吸收芯之间放置防水性薄膜。在其它的吸收性物品上重叠使用的情况下,也可以用透液性片制成。另外为可靠形成涂敷作业的层,而且为使作为涂敷面的片表面上的密度增加,而制成多层结构(多层抄造)的片。
吸收芯12由吸湿性坯料,例如粉碎的纸浆或粉碎的纸浆与高吸水性聚合物的混合物形成。粉碎的纸浆或粉碎的纸浆与高吸水性聚合物的混合物用薄纸等吸湿性片包住。例如连接件17是橡胶类粘接材料或丙烯酸类树脂等的粘接带,搭接片18是树脂薄膜。
虽然在上述实施方式中,层50,51配置在吸收芯12存在的整个区域内,但是也可以不配置在整个区域内。例如为了保护容易引起湿疹的腹部和臀部且又不使顶片10的透液性下降,也可以把层50,51只配置在与使用时穿用者的腹部相应的前部2A和/或在使用时与臀部和/或背部相应的后部2C上。另外,在吸收性物品1的其它位置上,只要是穿用时与穿用者的皮肤接触的部分,也可以配置层50,51。
图6是表示本发明另一实施例的断面图。在图6中,在防漏罗口32上,在穿着时与穿用者皮肤接触的区域即配置有弹性件31的自由端侧配置各层50,51。另外在穿用者的腿部周围形成与皮肤密切接触的腿部罗口的部分。在设置有弹性件35的侧部4附近配置层50,51。因此保护了容易引起湿疹的裆部附近和腿部的皮肤。
这样,因为与在吸收性物品上配置有橡胶的部分相应的皮肤经常因吸收性物品与皮肤磨擦而产生物理性刺激,所以最好要特别保护皮肤。此外,也可以在配置有腰部弹性件16的附近配置层50,51。
虽然在上述实施方式中是就吸收性物品为尿布的情况描述的,但本发明也适合预先成形为短裤型的尿布,吸尿垫,生理用卫生巾和短内裤衬里等。
按照本发明的吸收性物品,由于含有感知湿度的保护层能保护含有皮肤保护成分的层直至达到高湿度,所以在吸收性物品内达到高湿度时,即在皮肤保护成分达到适当时或达到需要时,保护成分才附着于皮肤上,并且该成分不会附着在皮肤以外的部分上,从而不易产浪费。
另外,在本发明中,既使保持层具有水溶性,也不会损害顶片的透液性。
Claims (7)
1、一种吸收性物品,包括透液性顶片、底片及夹在这两片之间的吸收芯,其特征在于在与穿用者的皮肤接触的面上设置含有皮肤保护成分的层和覆盖上述层的表面的保持层,上述保持层在25℃以上温度下是水溶性促进层和/或在相对湿度为30%以上的湿度下是吸温性或促进水溶性的层。
2、如权利要求1所述的吸收性物品,其特征在于上述保持层是由从分子量为100~50万的聚环氧乙烷、分子量为100~1万的聚丙二醇、聚合度为300~4000和皂化度为50~99的聚乙烯醇组成的组中选取的至少一种化合物形成。
3、如权利要求1或2所述的吸收性物品,其特征在于上述含有皮肤保护成分的层由在皮肤上形成油性膜的化合物形成。
4、如权利要求3所述的吸收性物品,其特征在于:上述含有皮肤保护成分的层在35℃以上具有流动性。
5、如权利要求3或4所述的吸收性物品,其特征在于:上述含有皮肤保护成分的层由从液体聚异戊二烯、角鲨烷、姥鲛烷、地蜡、纯地蜡、微晶蜡、聚乙烯粉末、液体石蜡、凡士林和石蜡组成的组中选出的至少一种化合物形成。
6、如权利要求1-5中所述任何一种吸收性物品,其特征在于:上述各层形成的区域配置在上述顶片的表面上。
7、如权利要求1~6中所述任何一种吸收性物品,其特征在于:吸收性物品具有用于防止侧漏的护翼。和/或防止从穿用者的腿周围泄漏的腿部罗口,上述各层形成的区域配置在上述防漏护翼和/或腿罗口的表面上。
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JP15404/2000 | 2000-01-25 | ||
JP2000015404A JP3805159B2 (ja) | 2000-01-25 | 2000-01-25 | 皮膚保護成分を含んだ吸収性物品 |
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EP (1) | EP1120097B1 (zh) |
JP (1) | JP3805159B2 (zh) |
KR (1) | KR100765220B1 (zh) |
CN (1) | CN1169502C (zh) |
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BR (1) | BR0100151B1 (zh) |
CA (1) | CA2332067C (zh) |
DE (1) | DE60137878D1 (zh) |
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MY (1) | MY146030A (zh) |
SG (1) | SG94737A1 (zh) |
TW (1) | TW487567B (zh) |
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CN114053040A (zh) * | 2020-07-30 | 2022-02-18 | 尤尼吉可株式会社 | 体液吸收性物品 |
CN112494716A (zh) * | 2021-01-15 | 2021-03-16 | 王忠良 | 一种抑菌止血水凝胶及其制备方法 |
CN113230037A (zh) * | 2021-04-15 | 2021-08-10 | 杭州千岛湖天鑫有限公司 | 一种山茶油缓释尿不湿 |
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TW487567B (en) | 2002-05-21 |
SG94737A1 (en) | 2003-03-18 |
BR0100151A (pt) | 2001-08-28 |
CN1169502C (zh) | 2004-10-06 |
DE60137878D1 (de) | 2009-04-23 |
ID29004A (id) | 2001-07-26 |
MY146030A (en) | 2012-06-15 |
CA2332067A1 (en) | 2001-07-25 |
EP1120097B1 (en) | 2009-03-11 |
BR0100151B1 (pt) | 2010-11-16 |
US7858840B2 (en) | 2010-12-28 |
JP3805159B2 (ja) | 2006-08-02 |
CA2332067C (en) | 2009-11-24 |
AU1643801A (en) | 2001-07-26 |
JP2001204761A (ja) | 2001-07-31 |
US20010009991A1 (en) | 2001-07-26 |
EP1120097A3 (en) | 2001-11-28 |
KR100765220B1 (ko) | 2007-10-10 |
EP1120097A2 (en) | 2001-08-01 |
KR20010076413A (ko) | 2001-08-11 |
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