CN113242895A - 皮肤粘贴用带或片 - Google Patents
皮肤粘贴用带或片 Download PDFInfo
- Publication number
- CN113242895A CN113242895A CN201980081282.3A CN201980081282A CN113242895A CN 113242895 A CN113242895 A CN 113242895A CN 201980081282 A CN201980081282 A CN 201980081282A CN 113242895 A CN113242895 A CN 113242895A
- Authority
- CN
- China
- Prior art keywords
- skin
- tape
- sheet
- adhesive layer
- adhesive
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
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- 239000012790 adhesive layer Substances 0.000 claims abstract description 29
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Abstract
本发明涉及一种皮肤粘贴用带或片,其具有基材和层叠在所述基材的至少单面上的粘合剂层,其中,所述粘合剂层含有丙烯酸类共聚物、在室温下为液态或糊状的成分和增粘剂,所述丙烯酸类共聚物通过将包含(甲基)丙烯酸烷基酯单体和含烷氧基的烯属不饱和单体的单体混合物共聚而形成,并且所述增粘剂包含松香酯类。
Description
技术领域
本发明涉及皮肤粘贴用带或片。
背景技术
皮肤粘贴用带或片出于通过粘贴在皮肤表面上来保护皮肤表面或者将导管、医疗设备等固定在皮肤表面上的目的而使用(例如,参见专利文献1)。
现有技术文献
专利文献
专利文献1:日本特开2007-209515号公报
发明内容
发明所要解决的问题
通常,皮肤表面具有不规则且复杂的结构,因此可以考虑通过提高构成皮肤粘贴用带或片的粘合剂层的柔软性来提高与皮肤表面的粘附性。但是,当过度提高粘合剂层的柔软性时,粘合剂层的凝聚力降低,因此在从皮肤表面剥离除去皮肤粘贴用带或片时,粘合剂有时残留在皮肤表面上,有可能造成胶糊残留。
另外,在将皮肤粘贴用带或片粘贴在皮肤表面上的状态下长时间保持时,有时由于从皮肤产生的汗液等而使皮肤粘贴用带或片轻易地剥离。另一方面,如果为了防止剥离而将皮肤粘贴用带或片的粘合力设定得过高,则在从皮肤表面剥离时,有可能对敏感的皮肤表面引起皮肤刺激、皮炎等。
可见,皮肤粘贴用带或片需要在粘合剂层的内部凝聚力和对皮肤的粘合力等之间保持一种绝妙的平衡,然而,对于现有的皮肤粘贴用带或片而言,其特性还难说已经处于满意的水平上。
鉴于上述现状,本发明的目的在于提供一种皮肤粘贴用带或片,其对皮肤表面的粘贴性、尤其是对在沐浴时的皮肤表面、存在汗液等水分的皮肤表面的粘贴性良好,在从皮肤表面剥离除去时能够防止胶糊残留、锚固破坏,能够降低从皮肤表面剥离除去时的皮肤刺激,并且透湿性优异。
用于解决问题的手段
本发明人等为了实现上述目的而反复进行了深入研究,结果发现,在通过将粘合剂层层叠在基材的至少单面上而形成的皮肤粘贴用带或片中,通过粘合剂层含有由特定的单体组成得到的丙烯酸类共聚物、在室温下为液态或糊状的成分和增粘剂,并且该增粘剂包含松香酯类,能够赋予该粘合剂层柔软性和凝聚性,此外,能够得到高透湿性,从而完成了本发明。
基于上述发现的本发明如下所述。
(1)一种皮肤粘贴用带或片,其具有基材和层叠在所述基材的至少单面上的粘合剂层,其中,所述粘合剂层含有丙烯酸类共聚物、在室温下为液态或糊状的成分和增粘剂,所述丙烯酸类共聚物通过将包含(甲基)丙烯酸烷基酯单体和含烷氧基的烯属不饱和单体的单体混合物共聚而形成,并且所述增粘剂包含松香酯类。
(2)如(1)所述的皮肤粘贴用带或片,其中,所述在室温下为液态或糊状的成分包含羧酸酯。
(3)如(2)所述的皮肤粘贴用带或片,其中,所述羧酸酯包含饱和脂肪酸的甘油酯。
(4)如(1)~(3)中任一项所述皮肤粘贴用带或片,其中,松香酯类的软化点为50℃~160℃。
发明效果
本发明的皮肤粘贴用带或片具有对皮肤表面的优异的粘贴性、尤其是对在沐浴时的皮肤表面、存在汗液等水分的皮肤表面的优异的粘贴性,并且在从皮肤表面剥离除去时能够防止胶糊残留、锚固破坏,能够降低从皮肤表面剥离除去时的皮肤刺激。另外,具有高透湿性,并且能够抑制粘贴时的闷湿、发痒等,因此对长时间的粘贴也有用。
附图说明
图1为表示具有剥离衬垫的皮肤粘贴用带或片的一个方式的示意截面图。
图2为表示皮肤粘贴用带的水中恒定载荷剥离性的测定方法的图,(a)为其示意立体图,(b)为其示意主视图。需要说明的是,为了使本发明的特征清楚,有时夸张地记载图中的各尺寸。
具体实施方式
以下,对本发明的优选的实施方式进行说明,本发明不限于这些具体的实施方式。
需要说明的是,在以下的附图中,有时对起到相同作用的构件、部位标注相同的符号进行说明,有时省略或简化重复的说明。另外,为了清楚地说明本发明而将附图中记载的实施方式示意化,不一定准确地表示实际的产品的尺寸、比例尺。
本发明为一种皮肤粘贴用带或片,其通过将粘合剂层层叠在基材的至少单面上而形成,其特征在于,该粘合剂层含有丙烯酸类共聚物、在室温下为液态或糊状的成分和增粘剂,所述丙烯酸类共聚物通过将包含(甲基)丙烯酸烷基酯单体和含烷氧基的烯属不饱和单体的单体混合物共聚而形成,并且该增粘剂包含松香酯类。
构成丙烯酸类共聚物的(甲基)丙烯酸烷基酯单体是赋予粘合剂层对皮肤的粘合性的成分,当使用烷基的碳原子数优选为4以上、更优选为6~18的长链烷基酯时是有效的。另外,包含丙烯酸类共聚物的粘合剂还具有如下优点:与橡胶类粘合剂相比杂质混入少、对皮肤的刺激性小、即使长时间使用也不易产生粘合力的降低。
作为(甲基)丙烯酸烷基酯,例如可以列举:烷基为丁基、戊基、己基、庚基、辛基、2-乙基己基、壬基、异壬基、癸基、十一烷基、十二烷基、十三烷基等,其中,优选使用2-乙基己基、异壬基。需要说明的是,它们可以单独使用或组合两种以上使用,这些烷基酯链可以是直链或支链中的任一者。
含烷氧基的烯属不饱和单体是赋予丙烯酸类共聚物水蒸气透过性、即透湿性的成分。通过对丙烯酸类共聚物、进而对包含该丙烯酸类共聚物的粘合剂层赋予透湿性,能够抑制皮肤粘贴用带或片在粘贴时的闷湿、发痒等,对长时间的粘贴也有用。对这样的含烷氧基的烯属不饱和单体没有特别限制,例如可以列举:甲氧基聚乙二醇丙烯酸酯、乙氧基二乙二醇丙烯酸酯、丁氧基二乙二醇丙烯酸酯、丙烯酸甲氧基乙酯、丙烯酸乙氧基乙酯、丙烯酸丁氧基乙酯等具有碳原子数为1~4的烷氧基的丙烯酸烷氧基烷基酯,其中,优选使用丙烯酸甲氧基乙酯。
本发明中的丙烯酸类共聚物优选使用由还包含含羧基的烯属不饱和单体的单体混合物得到的丙烯酸类共聚物。通过包含含羧基的烯属不饱和单体,能够期待提高所得到的共聚物的凝聚力。对这样的含羧基的烯属不饱和单体没有特别限制,例如可以列举:(甲基)丙烯酸、衣康酸、巴豆酸、富马酸、马来酸(酐)等,其中,从共聚性、操作性等观点考虑,优选使用(甲基)丙烯酸。
本发明中的丙烯酸类共聚物除了上述各单体以外,还可以根据需要适当地与苯乙烯、乙酸乙烯酯、N-乙烯基-2-吡咯烷酮等单体共聚。
丙烯酸类共聚物中的(甲基)丙烯酸烷基酯单体的含量的上限优选为80质量%,更优选为75质量%,下限优选为40质量%,更优选为50质量%。如果(甲基)丙烯酸烷基酯单体的含量在上述范围内,则能够更好地得到如下的效果:显示出良好的皮肤粘贴性,从皮肤剥离时对该皮肤不会产生胶糊残留现象而具有优异的剥离性。
另外,丙烯酸类共聚物中的含烷氧基的烯属不饱和单体的含量的上限优选为60质量%,更优选为50质量%,下限优选为10质量%,更优选为20质量%,进一步优选为25质量%。需要说明的是,在丙烯酸类共聚物中含有含羧基的烯属不饱和单体的情况下,含烷氧基的烯属不饱和单体的含量的上限优选为50质量%,更优选为45质量%,下限优选为10质量%,更优选为20质量%。如果含烷氧基的烯属不饱和单体的含量在上述范围内,则能够更好地得到如下的效果:能够赋予粘合剂层优异的透湿性,在粘贴到皮肤表面上时能够抑制闷湿、瘙痒感等。
在丙烯酸类共聚物中含有含羧基的烯属不饱和单体的情况下,含羧基的烯属不饱和单体的含量的上限优选为10质量%,更优选为8质量%,下限优选为1质量%,更优选为3质量%。如果含羧基的烯属不饱和单体的含量在上述范围内,则能够更好地得到如下的效果:能够赋予粘合剂层优异的凝聚力,能够抑制胶糊残留现象等,并且还能够抑制皮肤刺激性。
本发明中的丙烯酸类共聚物例如可以通过溶液聚合法、乳液聚合法、悬浮聚合法等公知的聚合方法得到。另外,可以通过使用过氧化物类化合物、偶氮类化合物等自由基聚合引发剂进行自由基聚合来得到。
丙烯酸类共聚物的玻璃化转变温度优选设定为250°K以下。即,通过将玻璃化转变温度设定为250°K以下,在将皮肤粘贴用带或片粘贴到皮肤表面上时,容易具有充分的皮肤胶粘性。
另外,期望将丙烯酸类共聚物的、在分子量测定溶剂中的可溶成分的重均分子量优选调节为50万~250万、更优选调节为60万~200万、进一步优选调节为60万~100万。需要说明的是,在此,重均分子量和分子量分布是使用凝胶渗透色谱法(GPC)测定的值,将测定样品溶解在四氢呋喃中,对通过的膜滤器的可溶成分进行测定,并通过聚苯乙烯换算来计算。
丙烯酸类共聚物的玻璃化转变温度、重均分子量的调节可以通过适当控制丙烯酸类共聚物的聚合条件(单体种类、单体的配合比、固体成分比率、反应温度、反应时间等)来进行。
本发明中的粘合剂层含有在室温(25℃)下为液态或糊状的成分(以下,也简称为“液态或糊状的成分”)。该成分赋予粘合剂层柔软性,保持对皮肤表面的良好的胶粘性,并且赋予在剥离时皮肤角质层的损伤少、减少皮肤刺激的特性。
这样的在室温下为液态或糊状的成分只要是与丙烯酸类共聚物具有亲和性或相容性的成分,则没有特别限制。例如,可以使用:邻苯二甲酸、马来酸、己二酸、辛酸、癸酸、月桂酸、肉豆蔻酸、棕榈酸、硬脂酸、油酸或各种脂肪酸与烷基醇的酯类;上述各种酸与乙二醇、甘油等多元醇的酯类等。更具体而言,作为一元醇的酯,可以列举:邻苯二甲酸二乙酯、邻苯二甲酸二丁酯、邻苯二甲酸二(2-乙基己基)酯、马来酸二丁酯、己二酸二丁酯、癸二酸二(2-乙基己基)酯、肉豆蔻酸乙酯、肉豆蔻酸异丙酯、肉豆蔻酸辛基十二烷基酯、棕榈酸异丙酯、硬脂酸丁酯、异硬脂酸异丙酯、月桂酸己酯、乳酸十六烷基酯、乳酸十四烷基酯、油酸辛基十二烷基酯、二甲基辛酸己基癸酯、2-乙基己酸十六烷基酯、2-乙基己酸异十六烷基酯、2-乙基己酸硬脂基酯、琥珀酸二辛酯等。另外,作为二元以上的醇的酯,可以列举:二辛酸丙二醇酯、二癸酸丙二醇酯、二异硬脂酸丙二醇酯、单辛酸甘油酯、三辛酸甘油酯、三-2-乙基己酸甘油酯、三癸酸甘油酯、三月桂酸甘油酯、三异硬脂酸甘油酯、三油酸甘油酯、三羟甲基丙烷三-2-乙基己酸酯等。其中,从与丙烯酸类共聚物的良好的亲和性、相容性的观点考虑,优选使用羧酸酯,更优选使用脂肪酸甘油酯,进一步优选使用饱和脂肪酸的甘油酯。这些成分可以单独使用或组合两种以上使用。
相对于100质量份的丙烯酸类共聚物,粘合剂层中的在室温下为液态或糊状的成分的含量的上限优选为60质量份,更优选为50质量份,进一步优选为45质量份,下限优选为5质量份,更优选为10质量份,进一步优选为15质量份。如果该成分的含量在上述范围内,则能够赋予粘合剂层充分的柔软性,因此能够更好地得到如下的效果:具有良好的皮肤粘贴性,并且抑制从皮肤剥离时的物理性的皮肤刺激,并且能够实现良好的剥离性。
本发明中的粘合剂层还含有增粘剂,该增粘剂包含松香酯类。通过粘合剂层包含松香酯类,赋予对皮肤表面的优异的粘贴性、尤其是在沐浴时的优异的皮肤粘贴性。作为松香酯类,可以列举:利用醇类将未改性松香(例如,脂松香、木松香、浮油松香等)进行酯化而得到的松香的酯化合物;利用醇类将改性松香(例如通过聚合、歧化、氢化等对未改性松香进行改性而得到的松香(聚合松香、稳定松香、歧化松香、完全氢化松香、部分氢化松香;利用其它化学修饰而得到的松香等))进行酯化而得到的改性松香的酯化合物等。
作为制备所述松香酯类时所使用的醇类,例如可以适当地使用乙二醇、二乙二醇、丙二醇、新戊二醇、1,3-丙二醇、1,4-丁二醇、1,3-丁二醇、1,6-己二醇等二元醇类;甘油、三羟甲基乙烷、三羟甲基丙烷、三羟乙基乙烷等三元醇类;季戊四醇、双甘油等四元醇类;二季戊四醇等六元醇类等多元醇类,也可以是甲醇、乙醇等一元醇类。另外,作为醇类,还可以使用三乙醇胺、三丙醇胺、三异丙醇胺、N-异丁基二乙醇胺、N-正丁基二乙醇胺等氨基醇类。
作为所述松香酯类,例如可以列举:Haritack PCJ(哈利玛化成公司制造)、Haritack SE10(哈利玛化成公司制造)、PENSEL D125(荒川化学工业公司制造)、PENSEL D-135(荒川化学工业公司制造)、Super Ester A-100(荒川化学工业公司制造)、Super EsterA-115(荒川化学工业公司制造)、Super Ester A-125(荒川化学工业公司制造)等。
本发明中的松香酯类的软化点的上限优选为160℃,更优选为140℃,进一步优选为130℃,下限优选为50℃,更优选为70℃,进一步优选为100℃,更进一步优选为110℃。如果松香酯类的软化点在上述范围内,则能够实现对皮肤表面的高粘合力。需要说明的是,松香酯类的软化点例如可以按照JIS K 5601-2-2(环球法)进行测定。
相对于100质量份的丙烯酸类共聚物,粘合剂层中的松香酯类的含量的上限优选为50质量份,更优选为40质量份,进一步优选为30质量份,下限优选为3质量份,更优选为5质量份,进一步优选为8质量份。如果该成分的含量在上述范围内,则能够更好地得到如下的效果:能够实现对皮肤表面的高粘合力并且能够抑制沐浴时等的水分渗入时的粘合力降低。
可以在不脱离本发明的目的的范围内,根据需要在本发明的皮肤粘贴用带或片中的粘合剂层中适当配合本身公知的增塑剂或软化剂、填充剂、稳定剂、抗氧化剂、抗菌剂、杀菌剂等各种添加剂。
为了赋予适度的凝聚力,优选对本发明的粘合剂层实施交联处理。作为该交联处理,除了利用γ射线照射、电子射线照射等物理处理进行的交联处理以外,还可以列举利用有机过氧化物、异氰酸酯化合物、有机金属盐、金属醇盐、金属螯合化合物、环氧类化合物、含伯氨基的化合物等进行的化学交联处理。作为化学交联处理的具体例,可以列举:过氧化苯甲酰等有机过氧化物;甲苯二异氰酸酯、六亚甲基二异氰酸酯等异氰酸酯化合物;甘油三缩水甘油基醚、异氰脲酸三缩水甘油酯等环氧类化合物;三(乙酰丙酮)合铝、乙酰乙酸乙酯合铝二异丙氧化物等金属螯合化合物。其中,从交联反应性、易操作性的观点考虑,优选使用异氰酸酯化合物、金属醇盐、金属螯合化合物。通过进行这样的交联处理,能够适当调节粘合剂层的柔软性与凝聚力等特性的平衡,因此能够更好地抑制剥离时的胶糊残留。
对粘合剂层的厚度没有特别限制,可以根据本发明的皮肤粘贴用带或片的用途、要粘贴的皮肤的适用部位等适当设定,例如,粘合剂层的厚度的上限优选为100μm,更优选为80μm,下限优选为30μm,更优选为50μm。如果粘合剂层的厚度在上述范围内,则能够更好地得到如下的效果:在粘贴到皮肤上时具有良好的皮肤胶粘性,并且能够得到优异的水蒸气透过性,即使长时间粘贴也能够尽可能地抑制闷湿、瘙痒感等。
作为在本发明中使用的基材,只要是不损害粘贴时的柔软性、具有机械强度的基材,则没有特别限制,可以使用包含各种材料的各种结构的基材。关于结构,可以例示:织布、无纺布、编织布、纸等纤维的集合体类;多孔膜、透气性膜等膜类;和发泡体等片状物。其中,特别优选具有容易适应粘贴部位的曲面的适度伸缩性的结构。作为基材,可以是片状物单层,也可以是片状物的层叠体。关于材质,可以列举:聚醚型聚氨酯、聚酯型聚氨酯等聚氨酯类聚合物;聚醚聚酰胺嵌段聚合物等酰胺类聚合物;聚丙烯酸酯等丙烯酸类聚合物;聚乙烯或聚丙烯、乙烯/乙酸乙烯酯共聚物等聚烯烃类聚合物、聚对苯二甲酸乙二醇酯等聚酯类聚合物等。
基材的厚度优选根据材质、用途等适当确定,通常在将膜作为基材的情况下,厚度的上限优选为100μm,更优选为70μm,厚度的下限优选为3μm,更优选为5μm。另外,在将织布、无纺布等的织物、纸等作为基材的情况下,有时难以测定绝对厚度,因此基重的上限优选为200g/m2,更优选为150g/m2,基重的下限优选为5g/m2,更优选为10g/m2。另外,在将发泡体作为基材的情况下,厚度的上限优选为3000μm,更优选为2000μm,进一步优选为1000μm,厚度的下限优选为100μm,更优选为200μm,进一步优选为300μm。
从防止在将皮肤粘贴用带或片粘贴到皮肤表面上时的闷湿、发痒的观点考虑,可以在基材中形成孔。形成在基材中的孔可以通过实施金属辊、穿孔机、激光照射等公知的多孔化技术而容易地得到。另外,在本发明的皮肤粘贴用带或片中,作为在基材中形成孔的方法,可以在基材自身中形成孔、然后层叠粘合剂层,也可以将粘合剂层层叠在基材上、然后形成孔。需要说明的是,在将粘合剂层层叠在基材上、然后形成孔的情况下,形成贯穿基材和粘合剂层的孔。
层叠在基材的至少单面上的粘合剂层可以形成在基材的整个面上,也可以局部地形成在所述基材上。在基材的局部上形成粘合剂层的情况下,例如优选形成为点状或条状。在条状的情况下,例如可以列举:直线状或波状等,但只要确保作为水蒸气等气体的通气道发挥作用的空间、即条状空间,则可以是任一种形状。其中的波状,由于在粘贴到皮肤上的过程中条状空间的截面积的经时变化少,因此是优选的。
本发明的皮肤粘贴用带或片例如以粘贴在各种便携设备(可穿戴设备)、构成该便携设备的构件上的方式还适用于该设备、该构件的固定、接合、装饰、保护、支撑等用途。更具体而言,可以使用皮肤粘贴用带或片在皮肤上将便携设备、构成该便携设备的构件等进行固定、接合、装饰、保护、支撑等。
在本发明的皮肤粘贴用带或片中,通常为了防止粘合剂层的表面的污染,预先利用剥离衬垫覆盖粘合剂层的露出表面直至使用为止。该剥离衬垫可以使用通常用于粘贴到皮肤、皮肤上的粘合带的剥离衬垫。具体而言,可以使用:将聚硅氧烷树脂、含氟树脂等具有剥离性能的剥离剂涂布在道林纸、玻璃纸、羊皮纸等的表面上而得到的剥离衬垫;将树脂锚固在道林纸上而得到的剥离衬垫;或将聚硅氧烷树脂、含氟树脂等具有剥离性能的剥离剂涂布在经过聚乙烯层压而得到的材料等的表面而得到的剥离衬垫。
在图1中示出具有剥离衬垫的皮肤粘贴用带或片的一个方式。本方式的皮肤粘贴用带或片10具有基材1和形成在基材1上的粘合剂层2,在粘合剂层2的表面上可剥离地覆盖剥离衬垫3。
实施例
以下,列举实施例对本发明更具体地进行说明,但是这些实施例不限于本发明。需要说明的是,以下,“份”和“%”分别指“质量份”和“质量%”。
(实施例1)
将100份的丙烯酸类共聚物(由丙烯酸异壬酯:丙烯酸2-甲氧基乙酯:丙烯酸=65份:30份:5份构成的共聚物(以下,也称为“成分A”))、30份的作为液态或糊状的成分的三辛酸甘油酯、10份的作为增粘剂的松香酯类(商品名:Haritack PCJ,哈利玛化成公司制造)、0.05份的作为交联剂的三官能异氰酸酯化合物(商品名:Coronate HL,东曹公司制造)配合到甲苯中,从而制作了均匀的粘合剂溶液。
接着,以干燥后的厚度成为70μm的方式将该溶液涂布在剥离纸(商品名:KP-64Shiromaru D MARUMIZU,LINTEC公司制造)的剥离处理面上,在130℃下干燥3分钟,从而形成了粘合剂层。接着,将所形成的粘合剂层转印在作为基材的聚对苯二甲酸乙二醇酯膜(厚度38μm)的单面上并进行贴合,在60℃下熟化72小时,从而得到了本发明的皮肤粘贴用带。
(实施例2~11和比较例1~4)
除了按照表1所示改变丙烯酸类共聚物、液态或糊状的成分、增粘剂、交联剂以外,与实施例1同样地操作,得到了实施例2~11和比较例1~4的皮肤粘贴用带。
表1
·成分A:丙烯酸类共聚物(由丙烯酸异壬酯:丙烯酸2-甲氧基乙酯:丙烯酸=65份:30份:5份构成的共聚物)
·成分B:丙烯酸类共聚物(丙烯酸2-乙基己酯:丙烯酸=95份:5份)
·GTC:三辛酸甘油酯
·IPM:肉豆蔻酸异丙酯
·PCJ:松香酯类(商品名:Haritack PCJ,哈利玛化成公司制造)
·SE-10:松香酯类(商品名:Haritack SE-10,哈利玛化成公司制造)
·YS-O105:芳香族改性萜烯树脂(商品名:YS-O105,Yasuhara Chemical公司制造)
·C/HL:Coronate HL(东曹公司制造)
·PET:聚对苯二甲酸乙二醇酯膜
·聚氨酯:聚氨酯膜
对在各实施例和比较例中得到的皮肤粘贴用带进行以下的试验。
(干燥状态的胶原膜粘合力)
将皮肤粘贴用带裁切成宽度10mm、长度50mm的矩形,将剥离纸剥离而露出粘合面,然后利用2kg的辊往返1次而将该粘合面压接粘贴在胶原膜(宽度25mm,长度100mm,厚度38μm)上。在该状态下,在室温下经过30分钟,然后在180度方向上以速度300mm/分钟的剥离速度将皮肤粘贴用带剥离,测定此时的剥离力。重复3次同样的试验,取剥离力的平均值,将其作为干燥状态的胶原膜粘合力(P干燥)的值计算出。
(潮湿状态的胶原膜粘合力)
将皮肤粘贴用带裁切成宽度10mm、长度50mm的矩形,将剥离纸剥离而露出粘合面,然后利用2kg的辊往返1次而将该粘合面压接粘贴在胶原膜(宽度25mm,长度100mm,厚度38μm)上。接着,向胶原膜的未粘贴皮肤粘贴用带的面加注充满整个面的量的纯化水,在该状态下经过30分钟,然后利用抹布擦拭所加注的纯化水,在180度的方向上以速度300mm/分钟的剥离速度将皮肤粘贴用带剥离,测定此时的剥离力。重复3次同样的试验,取剥离力的平均值,将其作为潮湿状态的胶原膜粘合力的值(P潮湿)计算出。
(粘合力变化率)
由上述的干燥状态和潮湿状态的胶原膜粘合力的值,根据下式计算出粘合力变化率。
粘合力变化率=(P干燥-P潮湿)/P干燥×100(%)
(耐皮脂粘合力)
利用甲苯将模型皮脂(三辛酸甘油酯)稀释成浓度为40mg/mL。以成为均匀的厚度的方式将该稀释液100μL涂布在胶原膜(宽度25mm,长度100mm,厚度38μm)的表面上,进行风干而除去甲苯,从而准备了涂布有模型皮脂的胶原膜。接着,将皮肤粘贴用带裁切成宽度10mm、长度50mm的矩形,将剥离纸剥离而露出粘合面,然后利用2kg的辊往返1次而将该粘合面压接粘贴在上述涂布有模型皮脂的胶原膜上。在该状态下,在室温下经过30分钟,然后在180度方向上以速度300mm/分钟的剥离速度将皮肤粘贴用带剥离,测定此时的剥离力。重复3次同样的试验,取剥离力的平均值,将其作为耐皮脂粘合力的值计算出。
(水中恒定载荷剥离性)
参照图2对水中恒定载荷剥离性进行说明。
经由双面胶带(未图示)将胶原膜22(宽度25mm,长度100mm,厚度38μm)贴合在电木板23(宽度30mm,长度130mm,厚度2mm)上而准备了试验板。接着,将皮肤粘贴用带21裁切成宽度10mm、长度50mm的矩形,将剥离纸剥离而露出粘合面,然后利用2kg的辊往返1次而将该粘合面压接粘贴在所述试验板的胶原膜22上,从而得到了试验样品。在该状态下,在室温下经过30分钟,然后在装有40℃的水24的水槽25中设置具有图2所示的形状的支撑件27,进而,以电木板23的相隔的2个端部在图2所示的状态下载置在支撑件27上的方式设置试验样品,在皮肤粘贴用带21的一端悬挂60g的重物(重り)26,测定皮肤粘贴用带21剥离的距离和时间。重复3次同样的试验,根据下式计算出剥离速度,取其平均值,将其作为水中恒定载荷剥离性的值计算出。该值越小,则表示在水中越不易剥离。
剥离速度(mm/分钟)=剥离的距离(mm)/剥离时间(分钟)
(人体皮肤粘合力)
将实施例1和比较例1~4的皮肤粘贴用带裁切成宽度10mm、长度50mm的矩形,将剥离纸剥离而露出粘合面,然后利用2kg的辊往返1次而将该粘合面压接粘贴在志愿者的前臂部上。在该状态下,在室温下经过30分钟,然后在180度的方向上以速度300mm/分钟的剥离速度将皮肤粘贴用带剥离,测定此时的剥离力。重复3次同样的试验,取剥离力的平均值,将其作为皮肤粘合力的值计算出。
(锚固性)
在胶原膜粘合力(干燥状态、潮湿状态)、耐皮脂粘合力、水中恒定载荷剥离性的测定中或测定后,目视观察锚固性的状态,根据下述判断基准进行评价。
〇:无锚固破坏
△:观察到轻微的锚固破坏
×:观察到明显的锚固破坏
将所得到的结果示于表2中。
表2
如表2所示,确认到:与比较例的皮肤粘贴用带相比,实施例1的皮肤粘贴用带的人体皮肤粘合力高,具有优异的皮肤粘贴性。另外,与各比较例的皮肤粘贴用带相比,各实施例的皮肤粘贴用带在各评价项目中显示出良好的结果,尤其是在存在水分的潮湿状态下具有良好的粘合特性。
另一方面,比较例1的皮肤粘贴用带的人体皮肤粘合力低,并且粘合力变化率也大,粘合特性差。
比较例2的皮肤粘贴用带由于耐皮脂粘合力低,水中恒定载荷剥离性的值大,因此容易剥离,粘合特性差。
比较例3的皮肤粘贴用带的人体皮肤粘合力、耐皮脂粘合力均低,粘合特性差。
比较例4的皮肤粘贴用带发生了明显的锚固破坏。
以上,对本发明的优选实施方式进行了说明,本发明不限于上述实施方式,可以在不脱离本发明的范围的范围内对上述实施方式施加各种变形和置换。
需要说明的是,本申请基于在2018年12月12日申请的日本专利申请(日本特愿2018-232674),并将其内容通过引用并入本文中。
产业实用性
根据本发明,能够提供一种皮肤粘贴用带或片,其皮肤粘合力高,皮肤粘贴性优异,并且在粘贴状态下,对于沐浴时的被粘物或存在从皮肤产生的汗液等水分的被粘物,能够抑制胶粘力的大幅降低而得到良好的胶粘性。
标号说明
1 基材
2 粘合剂层
3 剥离衬垫
10 皮肤粘贴用带或片
21 皮肤粘贴用带
22 胶原膜
23 电木板
24 水
25 水槽
26 重物
27 支撑件
Claims (4)
1.一种皮肤粘贴用带或片,其具有基材和层叠在所述基材的至少单面上的粘合剂层,其中,
所述粘合剂层含有丙烯酸类共聚物、在室温下为液态或糊状的成分和增粘剂,所述丙烯酸类共聚物通过将包含(甲基)丙烯酸烷基酯单体和含烷氧基的烯属不饱和单体的单体混合物共聚而形成,并且
所述增粘剂包含松香酯类。
2.如权利要求1所述的皮肤粘贴用带或片,其中,所述在室温下为液态或糊状的成分包含羧酸酯。
3.如权利要求2所述的皮肤粘贴用带或片,其中,所述羧酸酯包含饱和脂肪酸的甘油酯。
4.如权利要求1~3中任一项所述的皮肤粘贴用带或片,其中,松香酯类的软化点为50℃~160℃。
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EP3275959A1 (en) * | 2016-07-28 | 2018-01-31 | Nitto Denko Corporation | Pressure-sensitive adhesive tape or sheet for affixation to clothing |
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JP7473485B2 (ja) * | 2019-01-28 | 2024-04-23 | 日東電工株式会社 | 皮膚貼付材 |
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2019
- 2019-12-10 EP EP19896317.5A patent/EP3896135A4/en active Pending
- 2019-12-10 US US17/413,022 patent/US20220064492A1/en active Pending
- 2019-12-10 JP JP2020559247A patent/JP7384824B2/ja active Active
- 2019-12-10 WO PCT/JP2019/048250 patent/WO2020122058A1/ja unknown
- 2019-12-10 CN CN201980081282.3A patent/CN113242895A/zh active Pending
- 2019-12-12 TW TW108145482A patent/TW202038922A/zh unknown
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CN113366075A (zh) * | 2018-12-18 | 2021-09-07 | 德莎欧洲股份公司 | 粘贴在皮肤上的胶粘剂物质 |
Also Published As
Publication number | Publication date |
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WO2020122058A1 (ja) | 2020-06-18 |
EP3896135A4 (en) | 2022-08-31 |
JP7384824B2 (ja) | 2023-11-21 |
TW202038922A (zh) | 2020-11-01 |
US20220064492A1 (en) | 2022-03-03 |
JPWO2020122058A1 (ja) | 2021-10-21 |
EP3896135A1 (en) | 2021-10-20 |
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