CN107336478A - 一种多层复合无纺布 - Google Patents

一种多层复合无纺布 Download PDF

Info

Publication number
CN107336478A
CN107336478A CN201610865590.3A CN201610865590A CN107336478A CN 107336478 A CN107336478 A CN 107336478A CN 201610865590 A CN201610865590 A CN 201610865590A CN 107336478 A CN107336478 A CN 107336478A
Authority
CN
China
Prior art keywords
layer
fiber
fibrous layer
nonwoven fabrics
composite nonwoven
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
Application number
CN201610865590.3A
Other languages
English (en)
Inventor
邓小燕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tongxiang Guardian Applied Technology Research Institute Co Ltd
Original Assignee
Tongxiang Guardian Applied Technology Research Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tongxiang Guardian Applied Technology Research Institute Co Ltd filed Critical Tongxiang Guardian Applied Technology Research Institute Co Ltd
Priority to CN201610865590.3A priority Critical patent/CN107336478A/zh
Publication of CN107336478A publication Critical patent/CN107336478A/zh
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness

Abstract

本发明涉及一种多层复合无纺布，该无纺布借助点热压方式生产，具有柔和手感与无损手感的充分层间剥离强度，起绒毛少，不产生点热压接时对压纹辊的熔接、卷绕等，可长期稳定生产。该无纺布包含在130‑150℃既不熔融也不软化的纤维的两层的纤维层A，以及夹持在两层纤维A中的使用在130‑145℃熔融或软化的纤维所获得的纤维层B而成，两层纤维层A与一层纤维层B藉由点热压接而一体化，纤维层A与纤维层B间的层间剥离强度为1N/25mm～5N/25mm的范围内，该无纺布还具有15%以下的点热压面积，并且每平方厘米内的热压点不超过5个。

Description

一种多层复合无纺布
技术领域
本发明涉及一种无纺布，特别是是一种多层复合的无纺布。
背景技术
无纺布由于其柔软的品质特性，在卫生制品领域得到了广泛的应用，无纺布的制备一般可以分为热风粘合，针刺，水刺以及热压，其中热压中的点热压法具有成本优势，而且生产加工速度快，效率高。但是现有无纺布大都都是采用多种纤维进行混合制备，不同纤维之间必然存在有熔点温度的差异，如果将热压温度设定过高，可以保证大部分纤维都软化，以增强纤维之间的抱和力，进而提高无纺布层间的剥离强度，但是这样会导致完全软化的纤维粘附在热压辊上，导致生产中断，甚至安全事故。如果将热压温度设定过低，大部分纤维未能软化，纤维之间抱和力差，无纺布的层间剥离强度不够，对产品性能会带来不利影响。因此，在制备无纺布时，需要在纤维种类和热压工艺方面做综合考虑。
发明内容
本发明鉴于上述目的，提供了一种多层复合无纺布。
为了实现上述目的，本发明提供的技术方案如下：
一种多层复合无纺布，所述无纺布包含至少两层包含纤维A的纤维层和一层包含纤维B的纤维层，这些纤维层通过点热压结合为一体形成多层复合的无纺布，所述纤维层A中包含的纤维是在130-150℃内既不熔融也不软化的纤维，所述纤维层B中包含的纤维是在130-145℃熔融或软化的纤维；所述纤维层A处于多层复合无纺布的上下两个表层。
所述多层复合无纺布的层与层之间具有1N/25mm～5N/25mm的剥离强度。
所述多层复合无纺布具有15%以下的点热压面积，每平方厘米内的热压点不超过5个。
所述纤维层A中的纤维具有比纤维层B中的纤维高15-20℃的玻璃化转变温度。
根据本发明，纤维层A中包含的是具有较高熔点的纤维，并且纤维层A处于无纺布的上下表层，在一定的热压温度下，纤维层A中的纤维只是发生较低程度的软化，但是在该温度下，位于无纺布中间层的纤维层B中具有较低熔点的纤维则会发生较大幅度的软化甚至软化，进而将无纺布的上下表面层充分粘合起来，使得多层无纺布具有较好的层间剥离强度，并且由于纤维层A的存在，无纺布的表层处于光洁的状态，不会粘附热压辊；控制点热压的面积，如果点热压面积多大，会导致无纺布手感发硬，但是过低的点热压面积则会导致无纺布强力不够，因此，设置，多层复合无纺布具有15%以下的点热压面积，每平方厘米内的热压点不超过5个，这样的无纺布不但具有合适的强力还具有柔软的手感。
具体实施方式
下面结合具体实施例，进一步阐述本发明。
一种多层复合无纺布，所述无纺布包含至少两层包含纤维A的纤维层和一层包含纤维B的纤维层，这些纤维层通过点热压结合为一体形成多层复合的无纺布，所述纤维层A中包含的纤维是在140℃内既不熔融也不软化的纤维，所述纤维层B中包含的纤维是在145℃熔融或软化的纤维；所述纤维层A处于多层复合无纺布的上下两个表层。所述多层复合无纺布的层与层之间具有3N/25mm的剥离强度；所述多层复合无纺布具有15%以下的点热压面积，每平方厘米内的热压点为5个；所述纤维层A中的纤维具有比纤维层B中的纤维高15℃的玻璃化转变温度。
最终得到强力高并且手感柔软的多层复合无纺布。
以上实施方式只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人了解本发明内容并加以实施，并不能以此限制本发明的保护范围，凡根据本发明精神实质所做的等效变化或修饰，都应涵盖在本发明的保护范围内。

Claims (4)

1.一种多层复合无纺布，所述无纺布包含至少两层包含纤维A的纤维层和一层包含纤维B的纤维层，这些纤维层通过点热压结合为一体形成多层复合的无纺布，其特征在于：所述纤维层A中包含的纤维是在130-150℃内既不熔融也不软化的纤维，所述纤维层B中包含的纤维是在130-145℃熔融或软化的纤维；所述纤维层A处于多层复合无纺布的上下两个表层。
2.根据权利要求1所述的一种多层复合无纺布，其特征在于：所述多层复合无纺布的层与层之间具有1N/25mm～5N/25mm的剥离强度。
3.根据权利要求2所述的一种多层复合无纺布，其特征在于：所述多层复合无纺布具有15%以下的点热压面积，每平方厘米内的热压点不超过5个。
4.根据上述权利要求中任一项所述的一种多层复合无纺布，其特征在于：所述纤维层A中的纤维具有比纤维层B中的纤维高15-20℃的玻璃化转变温度。
CN201610865590.3A 2016-09-30 2016-09-30 一种多层复合无纺布 Pending CN107336478A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610865590.3A CN107336478A (zh) 2016-09-30 2016-09-30 一种多层复合无纺布

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610865590.3A CN107336478A (zh) 2016-09-30 2016-09-30 一种多层复合无纺布

Publications (1)

Publication Number Publication Date
CN107336478A true CN107336478A (zh) 2017-11-10

Family

ID=60222386

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610865590.3A Pending CN107336478A (zh) 2016-09-30 2016-09-30 一种多层复合无纺布

Country Status (1)

Country Link
CN (1) CN107336478A (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102753128A (zh) * 2010-02-10 2012-10-24 宝洁公司 具有粘结材料纤维网的吸收制品
CN102758311A (zh) * 2011-04-28 2012-10-31 捷恩智株式会社 凹凸伸缩无纺布及其制造方法
CN103124814A (zh) * 2010-10-05 2013-05-29 捷恩智株式会社 积层不织布及其制品

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102753128A (zh) * 2010-02-10 2012-10-24 宝洁公司 具有粘结材料纤维网的吸收制品
CN103124814A (zh) * 2010-10-05 2013-05-29 捷恩智株式会社 积层不织布及其制品
CN102758311A (zh) * 2011-04-28 2012-10-31 捷恩智株式会社 凹凸伸缩无纺布及其制造方法

Similar Documents

Publication Publication Date Title
CN104988660B (zh) 一种立体热风无纺布生产方法
TW202007814A (zh) 人工皮革及其製造方法
CN102990939B (zh) 纤维增强树脂片材成型装置
Pourmohammadi Thermal bonding
CN106758484B (zh) 一种芳纶纤维纸板的制备方法
CN106120153A (zh) 一种高弹性表面光洁无胶棉的高效节能定型方法
WO2018194096A1 (ja) 繊維ボードの製造方法
CN101992579A (zh) 一种基于热熔胶无纺布的粘合加工设备
CN107336478A (zh) 一种多层复合无纺布
CN105420931A (zh) 高耐水压热风拒水无纺布及其生产方法和生产系统
JP2007044908A (ja) ボード材の製造方法
CN104404817B (zh) 芳纶-玻璃纤维复合片材及其制备方法
CN204825352U (zh) 硬挺无纺布生产设备
CN109267241A (zh) 一种复合聚酯纤维板制备工艺
CN106319979B (zh) 一种提高复合材料抗分层性能的方法
CN104083799A (zh) 一种吸收芯及其制备方法
CN209409546U (zh) 一种环保型热胶无纺墙布复合设备
CN207432927U (zh) 一种可替代木材基材的复合硬化无纺布
KR20100119107A (ko) 후크-루프 체결 시스템의 루프 테이프 제조방법 및 이로부터 형성된 루프 테이프
CN105252870A (zh) 新型复合纤维纸
CN109501429A (zh) 一种环保型热胶无纺墙布复合设备
TWI705896B (zh) 彈性不織布及其製造方法
CN1228499C (zh) 一种防反渗热熔无纺衬布及其生产方法
CN107458035B (zh) 一种复合材料的制造工艺、制造设备及其复合中底板
CN219634736U (zh) 一种复合无纺布复合装置

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20171110