CN106715627B - 基于纤维素纤维的基材、其制造方法以及用作遮蔽胶带的用途 - Google Patents

基于纤维素纤维的基材、其制造方法以及用作遮蔽胶带的用途 Download PDF

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CN106715627B
CN106715627B CN201580052231.XA CN201580052231A CN106715627B CN 106715627 B CN106715627 B CN 106715627B CN 201580052231 A CN201580052231 A CN 201580052231A CN 106715627 B CN106715627 B CN 106715627B
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substrate
diketene
linking agent
soluble polymer
cross
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CN106715627A (zh
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M.杜福尔
V.杜兰德
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Oslo Minsk
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Oslo Minsk
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Abstract

本发明提供了一种基于纤维素纤维的基材，所述基材的至少一面上涂覆有水性混合物，所述水性混合物由以下组分组成：a)至少一种含有羟基的水溶性聚合物(WSP)，b)被至少一个可含有杂原子的直链或支链和/或环状C8‑C30烃链取代的至少一种内酯，c)至少一种交联剂。还提供了其制备方法和用途。

Description

基于纤维素纤维的基材、其制造方法以及用作遮蔽胶带的 用途
技术领域
本发明涉及一种基于纤维素纤维的新型基材及其制备方法。
本发明的应用领域是胶带工业。根据一个具体实施例，本发明涉及用作胶带基材的绉纸(crepe paper)，尤其是用于涂漆的遮蔽胶带。然而，也可以使用平背衬纸(flatback paper)代替绉纸作为胶带的基材。
背景技术
胶带通常由纤维基材、尤其是绉纸构成，在其至少一面上施加有粘合剂层。
这些胶带被应用于各种领域中，尤其是涂漆、包装、绝缘、涂覆、电子工业、汽车和航空工业、修理等。
绉纸的特征通常在于低基重、显著伸长率、以及特定的柔性、多孔性和厚度。这些特征取决于与造纸步骤、尤其是起绉步骤相关的多个参数。
在实践中，绉纸的基重为32至80g/m2，优选为约39g/m2。绉纸在纵向上伸长4％至20％，或对于某些应用(曲线遮蔽胶带)则更长。
绉纸的制备主要包括至少两个常规步骤，即：
-形成片材，
-压制。
当在压制之后进行起绉时，该工艺称为“湿起绉”。
也可能在压制后不直接起绉。在这种情况下，压制步骤之后是干燥步骤，再之后进行起绉。这种工艺称为“干起绉”。
本发明涉及这两种工艺。
压制步骤和干燥步骤尤其可以在单个干燥烘缸(例如，Yankee烘缸)中进行。当片材离开烘缸后，使用专用刮刀使其起绉，然后进行卷绕。
遮蔽胶带的制备通常分为三个步骤。
在第一步中，通过用粘结剂或胶乳、通常是SBR型胶乳(例如，10至20g/m2SBR(苯乙烯-丁二烯橡胶)胶乳)浸渍，使构成基材的绉纸饱和。该第一饱和步骤可实现：
-改善基材的物理性质，以允许进一步加工；
-形成屏障以防止粘合剂迁移到纸张中；
-与离型剂(release agent)和粘合剂良好结合，以防止分层。
第二步包括用离型剂(例如，4g/m2的丙烯酸胶乳或有机硅)处理，来涂覆饱和绉纸的一面。
最后，第三步包括将粘合剂施加到绉纸(通常在30和40g/m2之间)的第二面上，以形成最终的遮蔽胶带。第三步中的处理允许胶带以卷筒形式包装，同时便于使用者展开。
在实践中，胶带制造商从纸制造商处获得绉纸。制造商使纸张饱和，并在其至少一面上凃释放层(release layer)。然后，在另一面上施加粘合剂层以获得胶带。因此，整个过程需要四个不同的步骤。此外，纸张的制备和后续处理不在生产线上进行，这明显会影响成本。
在实践中，当在生产线之外进行时，用粘结剂使绉纸饱和的步骤可能是不完全的或不均匀的。就涂料而言，这会导致形成不完全密封的胶带。遮蔽胶带通常会导致沿着胶带侧边缘的少量涂料渗漏的问题，从而产生分界线和不充分的遮蔽。
为了克服所有这些缺点，申请人开发了一种新型纤维素纤维基条带基材，尤其是绉纸，该基材仅需有限数量的制备步骤。此外，该基材具有可即由胶带制造商用粘合剂涂覆的优点。
发明内容
本发明的目的是一种基材，尤其是纤维素纤维基胶带，尤其是绉纸和平背衬纸，以及其制备方法和其在胶带、特别是遮蔽胶带的制备中作为基材的用途。
本发明能够获得用于遮蔽胶带的绉纸或平背衬纸，这种绉纸或平背衬纸：
-尤其具有与在至少一面上涂覆有释放层并以常规方式制备的饱和绉纸或平背衬纸至少相同的释放性能、干强度性能和湿强度性能，
-在单个生产线上连续制备，
-在施加粘合剂之后，其提供具有符合制造标准的剥离性能和粘性程度的遮蔽胶带。
在实践中，本发明涉及用含有烷基链的水性组合物涂覆基材的至少一面，所述组合物同时充当饱和剂和离型剂。
更具体地讲，本发明的目的是一种基于纤维素纤维的基材，特别是胶带的基材，其至少一面涂覆有水性混合物，该水性混合物由以下组分组成：
a)至少一种含有羟基的水溶性聚合物(WSP)，
b)被至少一个可含有杂原子的直链或支链和/或环状C8-C30烃链取代的至少一种内酯，
c)至少一种交联剂。
有利的是，取代的内酯为双烯酮分子。
有利的是，所述基于纤维素纤维的基材为绉纸。
通常，纤维素基材，尤其是绉纸或平背衬纸，由比例在80重量％至99重量％范围内的纤维素纤维构成。有利的是，纤维的精制通常在20至50°SR、优选30至40°SR的范围内。
术语“平背衬纸”描述了不起绉的纸背衬。与典型的起绉基底相比，这些纸张相当平和光滑。此外，与起绉级纸张相比，它们具有非常小的伸长率(2％-4％)。
水溶性聚合物是指可溶于水或水性介质中的聚合物。
有利的是，所述含有羟基的水溶性聚合物选自：聚乙烯醇(PVA)、淀粉；氧化淀粉、酯化淀粉、醚化淀粉、藻酸盐；羧甲基纤维素(CMC)、乙酸乙烯酯的水解或部分水解的共聚物，其例如可通过乙烯-乙酸乙烯酯(EVA)或氯乙烯-乙酸乙烯酯、N-乙烯基吡咯烷酮-乙酸乙烯酯和马来酸酐-乙酸乙烯酯的水解而获得。
在一个有利的实施例中，所述水溶性聚合物为PVA，其有利水解度为至少95％，分子量优选地介于5000至1000000g/mol之间，有利地介于10000至150000g/mol之间。
双烯酮分子尤其在被烷基链取代时(烷基烯酮二聚体或AKD)为二聚烯酮，在造纸工业中是众所周知的，尤其是用于改善疏水性。
AKD由脂肪酸酰氯制备。它在造纸工业中的使用比例为0.15％，或每吨纸使用1.5kg AKD。在这种情况下，其在造纸机的湿端以乳液形式与纤维素纤维混合。
与纸纤维混合的AKD的双烯酮基团特别地与纤维素中的羟基反应。否则，它会在水的存在下水解。
有利的是，本发明的双烯酮分子具有以下结构：
Figure BDA0001255519030000041
其中R1和R2是可含有杂原子的独立的直链或支链和/或环状C8-C30烃链。
更有利的是，双烯酮分子可以选自：具有以下结构的双烯酮分子：
Figure BDA0001255519030000042
其中R1和R2＝具有8至30个碳原子的直链或支链和/或环状、饱和和/或不饱和的烃链。直链饱和链的例子为：辛基、壬基、癸基、十一烷基、十二烷基、十三烷基、十四烷基、十五烷基、十六烷基、十七烷基、十八烷基、十九烷基、二十烷基、二十一烷基、二十二烷基、二十三烷基、二十四烷基、二十二烷基、二十三烷基、二十四烷基、二十五烷基、二十六烷基、二十七烷基、二十八烷基、二十九烷基、三十烷基。线性不饱和链的例子为：辛烯基、壬烯基、癸烯基、十一碳烯基、十二碳烯基、十三碳烯基、十四碳烯基、十五碳烯基、十六碳烯基、十七碳烯基、十八碳烯基、十九碳烯基、二十碳烯基、二十一碳烯基、二十二碳烯基、二十三碳烯基、二十四碳烯基、二十五碳烯基、二十六碳烯基、二十七碳烯基、二十八碳烯基、二十九碳烯基、三十碳烯基等。
有利的是，用于本发明的组合物中的交联剂选自：CHO-Y-CHO，其中Y＝可含有杂原子的直链或支链和/或环状烃链：聚醛、多异氰酸酯。它也可以是己二酸/环氧丙基二亚乙基三胺共聚物(CAS No.25212-19-5)。
更有利的是，交联剂为乙二醛。
文献WO2010/141277还公开了一种涂覆有水溶性聚合物(在这种情况下为PVA)的基材。然而，在涂覆之前，用乙二醛处理基材以与PVA交联并将其保留在基材上。该处理不会为基材赋予释放性能。
不希望受任何理论束缚，申请人已发现，当用于涂覆基材的一面时，脂族链、尤其是蜡(例如，卡洛巴蜡)可以用作离型剂。然而，由于其低熔点，例如在包装期间，蜡倾向于在粘合剂与其接触时迁移到粘合剂中。这将导致在最终应用于基底时胶带的粘合强度降低。
避免此现象的一种方法是将脂肪或脂族链固定在基材上。因此，不希望受任何理论束缚，申请人发现有水溶性聚合物的水性涂料混合物中的烷基化双烯酮可以通过与羟基形成共价键而与所述水溶性聚合物反应。这将使双烯酮所携带的脂族链固定在水溶性聚合物(WSP)上。涂料混合物中交联剂的存在允许将已与双烯酮反应的WSP聚合物固定在基于纤维素纤维的基材上。
根据本发明的一个具体实施例，用于处理绉纸的至少一面的组合物由以下组分组成：
-作为水溶性聚合物的有利地95％水解的PVA，
-具有以下结构的双烯酮分子：
Figure BDA0001255519030000051
其中R1选自十四烷基(C14)、十六烷基(C16)和十八烷基(C18)，
并且R2选自十四烷基(C14)、十六烷基(C16)和十八烷基(C18)，
-以及作为交联剂的乙二醛。
根据本发明的一个具体实施例，以干重百分比使用的组合物由以下组分组成：
-50％至99％的水溶性聚合物(WSP)，有利地为60％至90％，
-1％至50％的双烯酮，有利地为10％至40％，
-1％至20％的交联剂，有利地为3％至15％。
基于纤维素纤维的基材，尤其是绉纸，在至少一面上涂覆有根据本发明的组合物。有利的是，组合物的干重介于1g/m2和20g/m2之间。
通常，本发明基材的基重介于3g/m2至10g/m2之间。
在实践中，绉纸的基重介于32至80g/m2之间，优选为约39g/m2。绉纸在纵向上的伸长率为4％至20％，或对于某些应用(曲线遮蔽胶带)则更长。
此伸长率或伸长能力对于将绉纸用作涂漆用遮蔽胶带特别有利。良好的伸长率允许实现胶带的更好处理和成形。
本发明的另一个目的是一种生产根据本发明的基材，尤其是基于绉纸的基材的方法。所述方法由以下步骤组成：
1)形成基于纤维素纤维的基材；
2)通过混合以下组分制备水性组合物：
·至少一种具有羟基的水溶性聚合物，
·被至少一个可含有杂原子的直链或支链和/或环状C8-C30烃链取代的至少一种内酯，以及
·至少一种交联剂；
3)用所述组合物涂覆基材的至少一面；
4)干燥。
本领域的技术人员已知的涂布技术包括施胶压榨(size press)、计量施胶压榨、浸涂、棒涂、Champion粉末涂布、气刀涂布、刮刀涂布、刮刀辊式涂布、单层和多层帘式涂布、转移辊式涂布(逆转辊式涂布)、喷涂、雾化涂布、LAS(液体施涂***)涂布、吻涂、泡沫涂布和使用涂布的任何表面处理方法。
如上所述，根据本发明的绉纸的制备在单个生产线上进行，其中由纤维素纤维纸浆制备绉纸，起绉，然后用根据本发明的组合物涂覆。在造纸机的下游，经涂覆的绉纸已准备好用粘合剂涂覆，优选涂覆在与用本发明组合物处理的面相对的一面上，以形成胶带，例如遮蔽胶带。
本发明的另一个目的是由根据本发明的一类绉纸构成的遮蔽胶带。在实践中，未用隔离组合物处理的一面用粘合剂涂覆。
本发明还涉及上述基材在制备遮蔽胶带中的用途。
通过以下用于描述本发明的非限制性例子，本发明及其优点将变得显而易见。
图1示出了用于观察第一样品的遮蔽胶带对涂料的抵抗力的涂料测试。
图2示出了用于观察第二样品的遮蔽胶带对涂料的抵抗力的涂料测试。
图3示出了用于观察第三样品的遮蔽胶带对涂料的抵抗力的涂料测试。
具体实施方式
I/第一实施例：作为基材的绉纸
1：比较测试：
取一张基重为39g/m2的用于遮蔽胶带的绉纸(Master Tape TM Classic 100)，用根据本发明获得的干重为5g/m2的水性混合物涂覆其一面上进行处理。
以干重表示的组合物包括：
-46％干
Figure BDA0001255519030000071
28/99(或46％淀粉
Figure BDA0001255519030000072
A4692)，
-46％干AKD(得自亚什兰公司(Ashland)的
Figure BDA0001255519030000073
J215)，
-8％乙二醛(得自科莱恩公司(Clariant)的TSI
Figure BDA0001255519030000074
)。
所得纸张的基重为44g/m2。
将该纸张与用SBR型胶乳(得自斯泰隆公司(Styron)的XZ 97235.00)和用4g/m2丙烯酸离型剂(得自陶氏化学公司(Dow)的
Figure BDA0001255519030000075
R-550)处理过的相同类型的绉纸(100/39g/m2Master Tape TM Classic)进行比较。
下面的比较表汇总了在干和湿条件下测得的机械性能并显示结果：
Figure BDA0001255519030000076
Figure BDA0001255519030000081
2：隔离测试：
通过施胶压榨处理，用各种水性组合物涂覆一张60g/m2绉纸。这些组合物的干沉积量为6至7g/m2。
所述水性组合物包含：
-PVA(
Figure BDA0001255519030000082
4/98)(或淀粉
Figure BDA0001255519030000083
A4692)，
-AKD(得自亚什兰公司(Ashland)的
Figure BDA0001255519030000084
J215)，
-乙二醛(CAS No.107-22-2)(得自科莱恩公司(Clariant)的
Figure BDA0001255519030000085
TSI)，
-水。
进行FINAT FTM 1测试。该测试通过使用PSA型粘合剂来评价释放基材对轧制的适应性。
样品1：使用10kg辊将一片商业遮蔽胶带(得自Bricomarché公司的
Figure BDA0001255519030000086
5cm宽)施加到另一片
Figure BDA0001255519030000087
胶带的释放面上。以300mm/min的速度和180°的角度测量剥离强度。
PVA/AKD-70/30样品：使用10kg辊将一片商业遮蔽胶带(得自Bricomarché公司的
Figure BDA0001255519030000088
5cm宽)施加在绉纸的涂覆有本发明组合物的一面上，所述组合物由70份PVA与30份AKD(或64.4重量％PVA、27.6重量％AKD和8重量％乙二醛)构成。
PVA/AKD-60/40样品：使用10kg辊将一片商业遮蔽胶带(得自Bricomarché公司的
Figure BDA0001255519030000091
5cm宽)施加在绉纸的涂覆有本发明组合物的一面上，所述组合物由60份PVA与40份AKD(或55.2重量％PVA、36.8重量％AKD和8重量％乙二醛)构成。
PVA/AKD-50/50样品：使用10kg辊将一片商业遮蔽胶带(得自Bricomarché公司的
Figure BDA0001255519030000092
5cm宽)施加在绉纸的涂覆有本发明组合物的一面上，所述组合物由50份PVA与50份AKD(或46重量％PVA、46重量％AKD和8重量％乙二醛)构成。
Figure BDA0001255519030000093
可以注意到，本发明的剥离强度与商业产品的剥离强度相当，介于5至8N/5cm之间，并且根据引入混合物中的AKD的量而变化。混合物中AKD的量越大，剥离强度越低。这显示了存在于AKD内的烷基链的隔离性质。
3：FINAT FTM 11测试-后续粘合：
“后续粘合释放”是在给定的速度和角度下撕裂涂覆有粘合到标准测试板上的粘合剂的胶带所需的力，该胶带先前已经在特定温度和湿度条件下与相同类型的基材的涂覆有离型剂的一面接触。
该测试的目的是测量离型剂转移到粘合剂层中的可能性。
后续粘合的百分比表示为测得的粘合力与由不与涂覆有离型剂的基材接触的类似对照胶带所获得的粘合力之间的比。对照胶带的粘合值测定为10.97N/5cm。
Figure BDA0001255519030000094
Figure BDA0001255519030000101
与本发明相关的基材的粘合强度损失量与商业产品相似。因此，很少或没有AKD转移到粘合剂中。
4：根据FINAT FM10测试在室温下进行压力老化测试(70g/cm2)后的剥离强度：
在与实例2相同的条件下，使用10kg辊将商业遮蔽胶带(得自Bricomarché公司的
Figure BDA0001255519030000102
5cm宽)施加到不同类型的绉纸和
Figure BDA0001255519030000103
胶带上。在室温(23℃和50％湿度)下，将样品加压(70g/cm2)20小时。然后将样品在23℃和50％相对湿度下保持至少4小时。以300mm/min的速度和180°的角度测量剥离强度-FINAT FM1测试。
Figure BDA0001255519030000104
将这些值与实例2的值(老化测试前的分离强度)进行比较。可以注意到，商业产品和本发明基材的强度变化都低(损失在2％和9％之间)，因此剥离强度在室温下在压力下随时间推移是稳定的。
5：FINAT FTM 11测试-在室温下老化后的后续粘合：
“后续粘合释放”是在给定的速度和角度下撕裂涂覆有粘合到标准测试板上的粘合剂的胶带所需的力，该胶带先前已经在特定温度和湿度条件下与相同类型的基材的涂覆有离型剂的一面接触。
后续粘合的百分比表示为测得的粘合力与由不与涂覆有离型剂的基材接触的类似对照胶带所获得的粘合力之间的比。对照胶带的粘合值以10.97N/5cm测得。
Figure BDA0001255519030000111
与本发明相关的基材的粘合强度损失量与商业产品相似。因此，很少或没有AKD转移到粘合剂中。具有50份AKD的样品显示出较低的值，表明AKD迁移到粘合剂中的轻微可能性。
6：根据FINAT FM 10测试在70℃下进行压力老化测试(70g/cm2)后的剥离强度：
在与实例2相同的条件下，使用10kg辊将商业遮蔽胶带(得自Bricomarché公司的
Figure BDA0001255519030000112
5cm宽)施加到不同类型的绉纸和
Figure BDA0001255519030000113
胶带上。在70℃下，将样品加压(70g/cm2)20小时。然后将样品在23℃和50％相对湿度下保持至少4小时。以300mm/min的速度和180°的角度测量剥离强度-FINAT FM1测试。
Figure BDA0001255519030000114
含有30份AKD的本发明基材的剥离强度变化表现出类似于商业产品的释放性能变化(15％-20％)。相比之下，本发明的另外两个样品表现出相当明显的变化(+50％)。
7：FINAT FTM 11测试-在70℃下老化后的后续粘合：
“后续粘合释放”是在给定的速度和角度下撕裂涂覆有粘合到标准测试板上的粘合剂的胶带所需的力，该胶带先前已经在特定温度和湿度条件下与相同类型的基材的涂覆有离型剂的一面接触。
后续粘合的百分比表示为测得的粘合力与由不与涂覆有离型剂的基材接触的类似对照胶带所获得的粘合力之间的比。对照胶带的粘合值测定为10.97N/5cm。
Figure BDA0001255519030000121
含有30份AKD的基材的粘合强度损失量与商业产品相似。因此，对于该样品，很少或没有AKD转移到粘合剂中。相比之下，含有50份AKD的样品表现出低得多的值(粘合强度损失量大于30％)，表明AKD可能迁移到粘合剂中。
8：在高温(65℃)和高湿度(85％相对湿度)下老化(7天)后的剥离强度-AFERA# 4003(EN 12024)测试：
使用10kg辊将商业遮蔽胶带(得自Bricomarché公司的
Figure BDA0001255519030000122
5cm宽)施加到本发明的不同类型的绉纸上和其自身上。然后将样品同样地(无压力)在65℃和85％湿度的气候模拟室中保持7天(AFERA#4003测试)。以300mm/min的速度和180°的角度测量剥离强度。
Figure BDA0001255519030000123
因此，可以注意到，本发明的不同类型的绉纸的表现类似于商业产品(即，
Figure BDA0001255519030000124
)或更好(对于PVA/AKD-70/30混合物，具有更稳定的剥离强度)。
II/第二实施例：平背衬纸作为基材
隔离测试：
通过施胶压榨处理，用各种水性组合物涂覆一张62g/m2平背衬纸。这些组合物的干沉积量为8g/m2。
所述水性组合物包含：
-PVA(
Figure BDA0001255519030000131
4/98)(或淀粉
Figure BDA0001255519030000132
A4692)，
-AKD(得自亚什兰公司(Ashland)的
Figure BDA0001255519030000133
J215)，
-乙二醛(CAS No.107-22-2)(得自科莱恩公司(Clariant)的
Figure BDA0001255519030000134
TSI)，
-水。
进行FINAT FTM 1测试。该测试通过使用PSA型粘合剂来评价释放基材对轧制的适应性。
样品1：使用10kg辊将一片商业遮蔽胶带(得自Bricomarché公司的
Figure BDA0001255519030000135
5cm宽)施加到另一片
Figure BDA0001255519030000136
胶带的释放面上。以300mm/min的速度和180°的角度测量剥离强度。
PVA/AKD-70/30样品：使用10kg辊将一片商业遮蔽胶带(得自Bricomarché公司的
Figure BDA0001255519030000137
5cm宽)施加在平背衬纸(AHLSTROM MastertapeTMDELICATE 400–62g/m2)的涂覆有8g/m2的本发明组合物的一面上，所述组合物由70份PVA与30份AKD(或64.4重量％PVA、27.6重量％AKD和8重量％乙二醛)构成。
淀粉/AKD-70/30样品：使用10kg辊将一片商业遮蔽胶带(得自Bricomarché公司的
Figure BDA0001255519030000138
5cm宽)施加在平背衬纸(AHLSTROM MastertapeTMDELICATE 400–62g/m2)的涂覆有8g/m2的本发明组合物的一面上，所述组合物由70份淀粉与30份AKD(或64.4重量％淀粉、27.6重量％AKD和8重量％乙二醛)构成。
Figure BDA0001255519030000139
可以注意到，本发明的剥离强度与商业产品的剥离强度相当，介于5至8N/5cm之间。这表明存在于AKD中的烷基链的释放性能。
III/涂料测试
涂料测试的目的是观察遮蔽胶带对涂料的抵抗力。具体地讲，观察涂料在边缘上的迁移(回涂)。该测试由申请人开发。
1/样品的制备
样品1：商业遮蔽胶带(得自Bricomarché公司的
Figure BDA0001255519030000141
5cm宽)。
样品2：取一片基重为55g/m2的用于遮蔽胶带的绉纸(MastertapeTMSmart line300)，在机器规模上通过施胶压榨用水性混合物PVA/AKD(50/50份，或46重量％PVA、46重量％AKD和8重量％乙二醛)进行处理，干重为5g/m2。
样品3：取一片基重为62g/m2的平背衬纸(AHLSTROM MastertapeTMDELICATE 400-62g/m2)，在实验室规模上通过施胶压榨用水性混合物PVA/AKD(70/30份，或64.4重量％PVA、27.6重量％AKD和8重量％乙二醛)进行处理，干重为8g/m2。
然后用25-30g/m2粘合剂(Dow Corning粘结剂ROBOND PS9005(MS：57％))涂覆在样品2和3的较平滑面上。
2/涂料的施用
将样品1和样品2和3(这些样品随后切割成5cm宽度的带)分别施加在13cm×13cm透明玻璃板上。将3.5-3.7g涂料施加在板的所有表面上。
将板放置干燥至少4小时。
3/涂料迁移的测量
转动每个板，在板上施加具有1mm孔的透明网格。然后对填充有涂料的孔的数目进行计数以计算每厘米的迁移表面区域。涂料表面区域越小，迁移越低，遮蔽胶带越好。
4/结果
图1：样品1对应于COTEKA。迁移为10.6mm2/cm。
图2：本发明的样品2。迁移为0.6mm2/cm。
图3：本发明的样品3。迁移为0.12mm2/cm。

Claims (14)

1.一种基于纤维素纤维的基材，所述基材的至少一面涂覆有水性组合物，所述水性组合物由以下组分组成：
a)至少一种含有羟基的水溶性聚合物，
b)被至少一个可含有杂原子的直链或支链和/或环状C8-C30烃链取代的至少一种双烯酮化合物，和
c)至少一种交联剂，
其中所述双烯酮化合物固定在所述基材的至少一个表面上。
2.根据权利要求1所述的基材，其特征在于：所述基材为绉纸。
3.根据权利要求1或2所述的基材，其特征在于：所述含有羟基的水溶性聚合物选自：PVA；淀粉；氧化淀粉；酯化淀粉；醚化淀粉；藻酸盐；CMC；乙酸乙烯酯的水解或部分水解的共聚物，其可通过乙烯-乙酸乙烯酯(EVA)或氯乙烯-乙酸乙烯酯、N-乙烯基吡咯烷酮-乙酸乙烯酯和马来酸酐-乙酸乙烯酯的水解而获得。
4.根据权利要求1或2所述的基材，其特征在于：具有以下结构的双烯酮分子：
Figure FDA0002506464430000011
其中R1和R2是可含有杂原子的独立的直链或支链和/或环状C8-C30烃链。
5.根据权利要求1或2所述的基材，其特征在于：所述交联剂选自：CHO-Y-CHO，其中Y是直链或支链烃链和/或环状烃链，并且可含有杂原子、聚醛、多异氰酸酯、己二酸/环氧丙基二亚乙基三胺共聚物。
6.根据权利要求1或2所述的基材，其特征在于：
-所述水溶性聚合物为PVA，
-所述双烯酮分子具有以下结构：
Figure FDA0002506464430000021
其中R1选自十四烷基(C14)、十六烷基(C16)和十八烷基(C18)，
并且R2选自十四烷基(C14)、十六烷基(C16)和十八烷基(C18)，以及
-作为所述交联剂的乙二醛。
7.根据权利要求1或2所述的基材，其特征在于：所使用的组合物由以下干重百分比的组分组成：
-46％至90％的所述水溶性聚合物，
-1％至50％的所述双烯酮，
-1％至20％的所述交联剂。
8.根据权利要求1或2所述的基材，其特征在于：所述组合物的干基重相对于所述基材的表面为1-20g/m2。
9.根据权利要求1所述的基材，其特征在于：所述基材的基重介于3和10g/m2之间。
10.根据权利要求7所述的基材，其特征在于：所使用的组合物由以下干重百分比的组分组成：
-10％至40％的所述双烯酮。
11.根据权利要求7所述的基材，其特征在于：所使用的组合物由以下干重百分比的组分组成：
-3％至15％的所述交联剂。
12.一种制备根据权利要求1-11中任一项所述的基材的方法，由以下步骤组成：
1)形成基于纤维素纤维的基材；
2)通过混合以下组分制备水性组合物：
a)至少一种含有羟基的水溶性聚合物，
b)被至少一个可含有杂原子的直链或支链和/或环状C8-C30烃链取代的至少一种双烯酮化合物，以及
c)至少一种交联剂；
3)用所述组合物涂覆所述基材的至少一面；
4)干燥。
13.根据权利要求1-11中任一项所述的基材用于制备遮蔽胶带的用途。
14.一种遮蔽胶带，所述遮蔽胶带包括根据权利要求1-11中任一项所述的基材。
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FR3026345B1 (fr) 2016-09-30
US10676592B2 (en) 2020-06-09
US20170292043A1 (en) 2017-10-12
FR3026345A1 (fr) 2016-04-01
RS62278B1 (sr) 2021-09-30
ES2885849T3 (es) 2021-12-15
EP3198080A1 (en) 2017-08-02
WO2016046381A1 (en) 2016-03-31
PL3198080T3 (pl) 2021-11-22
EP3198080B1 (en) 2021-06-09

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