JPH02289187A - Production of suede sheetlike material - Google Patents
Production of suede sheetlike materialInfo
- Publication number
- JPH02289187A JPH02289187A JP10311789A JP10311789A JPH02289187A JP H02289187 A JPH02289187 A JP H02289187A JP 10311789 A JP10311789 A JP 10311789A JP 10311789 A JP10311789 A JP 10311789A JP H02289187 A JPH02289187 A JP H02289187A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- ultrafine
- polyester
- ultrafine fiber
- sheet
- 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
- 239000000463 material Substances 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000835 fiber Substances 0.000 claims abstract description 39
- 229920002635 polyurethane Polymers 0.000 claims abstract description 37
- 239000004814 polyurethane Substances 0.000 claims abstract description 37
- 229920000728 polyester Polymers 0.000 claims abstract description 31
- 229920001410 Microfiber Polymers 0.000 claims abstract description 30
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 22
- 238000004043 dyeing Methods 0.000 claims abstract description 15
- 239000000986 disperse dye Substances 0.000 claims abstract description 8
- 238000005406 washing Methods 0.000 claims abstract description 8
- 150000002009 diols Chemical class 0.000 claims abstract description 5
- ALVZNPYWJMLXKV-UHFFFAOYSA-N 1,9-Nonanediol Chemical compound OCCCCCCCCCO ALVZNPYWJMLXKV-UHFFFAOYSA-N 0.000 claims abstract description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229920000642 polymer Polymers 0.000 claims description 21
- 238000009981 jet dyeing Methods 0.000 claims description 4
- 239000000047 product Substances 0.000 claims description 4
- SDQROPCSKIYYAV-UHFFFAOYSA-N 2-methyloctane-1,8-diol Chemical compound OCC(C)CCCCCCO SDQROPCSKIYYAV-UHFFFAOYSA-N 0.000 claims description 2
- 239000007859 condensation product Substances 0.000 claims description 2
- 238000004898 kneading Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 230000006866 deterioration Effects 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 239000004744 fabric Substances 0.000 abstract description 5
- 238000004040 coloring Methods 0.000 abstract description 2
- 230000001112 coagulating effect Effects 0.000 abstract 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 230000003301 hydrolyzing effect Effects 0.000 abstract 1
- 229920003225 polyurethane elastomer Polymers 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 13
- 238000004140 cleaning Methods 0.000 description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 239000000975 dye Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- -1 polyethylene terephthalate Polymers 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 239000002649 leather substitute Substances 0.000 description 3
- 229920000570 polyether Polymers 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 210000004209 hair Anatomy 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920001610 polycaprolactone Polymers 0.000 description 2
- 239000004632 polycaprolactone Substances 0.000 description 2
- 230000001007 puffing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- 239000004970 Chain extender Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 description 1
- 238000005108 dry cleaning Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-M hydrosulfide Chemical compound [SH-] RWSOTUBLDIXVET-UHFFFAOYSA-M 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- FVXBCDWMKCEPCL-UHFFFAOYSA-N nonane-1,1-diol Chemical compound CCCCCCCCC(O)O FVXBCDWMKCEPCL-UHFFFAOYSA-N 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
Description
本発明は、良好な外観を有し、発色性及び、染色堅牢度
に優れた、立毛がポリエステル極細繊維よりなるスェー
ド調シート状物の製造方法に関する。The present invention relates to a method for producing a suede-like sheet material having a good appearance, excellent color development and color fastness, and having raised naps made of ultrafine polyester fibers.
従来、スェード調人工皮革として、表面が弾性重合体の
立毛よりなるもの、起毛した繊維立毛よりなるものなど
様々なものが提案されて来た。中でも、弾性重合体を主
体とした多孔質重合体を含有した繊維質基体の表面にポ
リエステル繊維あるいはポリアミド繊維の極細繊維立毛
を有するシート状物は、独特のライティング効果、良好
な風合いから特に好ましく用いられている。基体層に付
与される弾性重合体としては一般に、ポリウレタンが多
く用いられている。
ポリウレタンはソフトセグメントを基準としてポリエス
テル系またはポリエーテル系に大別され、それぞれに長
所、短所がある。即ち、ポリエステル系ポリウレタンは
耐薬品性、耐光性、耐熱劣化性、耐ＮＯｘガス貴変性な
どに優れ、湿式スポンジ形成性も良好であるが、耐熱水
性、耐加水分解性に劣る。ポリエーテル系ポリウレタン
はこれと逆の性質を示す。
ポリエステル系繊維シートの染色は、一般に高温で染色
され、更に、アルカリ性の還元浴による還元洗浄が行わ
れている。しかし、ポリウレタンを含有するポリエステ
ル繊維シートの染色においては、アルカリ還元浴による
ポリウレタンの劣化防止のため、耐熱劣化性、耐Ｎ Ｏ
ｘガス黄変性などを犠牲にしてポリエーテル系ポリウレ
タンを使用するか、又は、ポリエステル系ポリウレタン
を使用して還元洗浄条件を緩くしたり、非アルカリ性条
件下で染色及び還元洗浄することが提案されている。即
ち、ポリエステル繊維とポリカプロラクトン系ポリウレ
タンとよりなる複合材シート状物を酸性染色浴で、機械
的揉布を行いつつ染色する方法が特公昭６０−２６８７
６号公報に提案されている。また、ポリウレタンを含有
するポリエステル系極細繊維構造物を分散染料により染
色した後、酸性還元浴で処理することが特公昭６４−１
５９５号に提案されている。
本願出願人は、ソフトセグメントを構成するポリオール
として１．９−ノナンジオールを用いたポリウレタンを
人工皮革に用いることを特開昭６１−１８５５２０号公
報に、また２−メチルＩ、８−オクタンジオールを用い
たポリウレタンを人工皮革に用いることを特開昭６２−
２２８１７号公報に提案している。Conventionally, various types of suede-like artificial leather have been proposed, such as those whose surfaces are made of raised elastomer polymers and those whose surfaces are made of raised fibers. Among these, a sheet-like material having microfiber naps of polyester fiber or polyamide fiber on the surface of a fibrous substrate containing a porous polymer mainly composed of an elastic polymer is particularly preferably used because of its unique lighting effect and good texture. It is being Generally, polyurethane is often used as the elastic polymer applied to the base layer. Polyurethane is broadly classified into polyester type and polyether type based on the soft segment, and each type has advantages and disadvantages. That is, polyester polyurethane has excellent chemical resistance, light resistance, heat deterioration resistance, resistance to NOx gas noble deterioration, etc., and good wet sponge forming property, but is inferior in hot water resistance and hydrolysis resistance. Polyether polyurethane exhibits the opposite properties. Polyester fiber sheets are generally dyed at high temperatures, and are further subjected to reduction cleaning using an alkaline reduction bath. However, when dyeing polyester fiber sheets containing polyurethane, in order to prevent the polyurethane from deteriorating due to the alkaline reducing bath, heat deterioration resistance and N O resistance are required.
It has been proposed to use polyether-based polyurethane at the expense of gas yellowing, or to use polyester-based polyurethane to reduce the reduction cleaning conditions, or to dye and reduce reduction cleaning under non-alkaline conditions. There is. Specifically, a method of dyeing a composite sheet made of polyester fibers and polycaprolactone-based polyurethane in an acid dyeing bath while mechanically rubbing the fabric was disclosed in Japanese Patent Publication No. 60-2687.
This is proposed in Publication No. 6. In addition, after dyeing a polyester-based ultrafine fiber structure containing polyurethane with a disperse dye, it is possible to treat it in an acidic reduction bath according to the Patent Publication No. 64-1.
No. 595. The applicant of the present application disclosed the use of polyurethane using 1,9-nonanediol as the polyol constituting the soft segment in JP-A-61-185520, and also disclosed the use of 2-methyl I, 8-octanediol in artificial leather. The use of the polyurethane used in artificial leather in 1982-
This is proposed in Publication No. 22817.
本発明の目的は、高温染色および強アルカリ還元洗浄を
行っても材質の劣化を起こさず、かつ耐薬品性、耐光性
、耐ＮＯｘ黄変性、耐加水分解性などに優れ、良好な外
観、発色性を有し、染色堅牢度に優れたポリエステル系
極細繊維立毛スェード調シートの製造方法を提供するに
ある。The purpose of the present invention is to prevent material deterioration even after high-temperature dyeing and strong alkaline reduction cleaning, and to have excellent chemical resistance, light resistance, NOx yellowing resistance, hydrolysis resistance, etc., and good appearance and color development. To provide a method for producing a napped suede-like sheet made of ultrafine polyester fibers and having excellent color fastness.
本発明は、ポリエステル極細繊維とポリウレタンを主体
とした弾性重合体とからなり、少なくとも一面が極細繊
維を主体とした立毛を有するスェード調シート状物の製
造方法において、■ポリエステル極細繊維またはポリエ
ステル極細繊維発生型繊維の３次元絡合不織布を製造す
る工程、
■上記不織布に、ｌ、９−ノナンジオールおよび／また
は２−メチル１．８−オクタンジオールを主体としたジ
オールとジカルボン酸との１１物である平均分子量７０
０〜４０００のポリエステルをソフトセグメントとした
ポリウレタンを含浸し、湿式凝固する工程、
［３］［１］の不織布が極細繊維発生型繊維の場合にお
いては、該繊維を極細繊維に変成する工程、■シート表
面を起毛し、ポリエステル極細繊維立毛を形成させる工
程、
■揉布機能を有する液流染色機で分散染料により染色す
る工程、
■アルカリ条件下で還元洗浄する工程、を順次行うこと
を特徴とするスェード調シート状物の製造方法である。The present invention provides a method for producing a suede-like sheet-like article comprising ultrafine polyester fibers and an elastic polymer mainly composed of polyurethane, and having napped naps on at least one side mainly composed of ultrafine fibers. A process for producing a three-dimensionally entangled nonwoven fabric of generated fibers; A certain average molecular weight 70
A step of impregnating polyurethane with a soft segment of polyester having a molecular weight of 0 to 4,000 and wet coagulation; [3] If the nonwoven fabric of [1] is an ultrafine fiber generation type fiber, a step of converting the fiber into an ultrafine fiber; It is characterized by sequentially carrying out the following steps: raising the surface of the sheet to form polyester ultrafine fiber naps; ■ dyeing with a disperse dye using a liquid jet dyeing machine with a rubbing function; and ■ reducing cleaning under alkaline conditions. This is a method for manufacturing a suede-like sheet material.
本発明のスェード調シート状物を構成する、ポリエステ
ル極細繊維および／またはその束状繊維の繊維絡合不織
布とポリウレタンを主体とした弾性重合体とからなるシ
ート状基体は、繊維絡合不織布を構成するポリエステル
繊維として、例えば、ポリエチレンテレフタレート、エ
チレンテレフタレート共重合体、ポリブチレンテレフタ
レート、その他の繊維形成性のポリエステルなどの可紡
性重合体を紡糸、延伸して得た極細繊維を用いて３次元
絡合極細繊維不織布とし、弾性重合体を含有させて極細
繊維絡合不織布と弾性重合体とからなるシート状基体と
する。あるいは上記可紡性重合体を極細繊維成分とし、
他の可紡性重合体と共に極細繊維発生型繊維に紡糸し、
延伸して得た繊維で、３次元絡合不織布を形成し、（イ
）３次元絡合不織布に弾性重合体を含有させた後、極細
繊維発生型繊維を少なくともｌ成分の溶剤、分解剤等の
化学処理剤で処理し、および／または機械的処理して極
細繊維束繊維に変成し、極細繊維束繊維絡合不織布と弾
性重合体とからなるシート状基体とする、あるいは（ロ
）３次元絡合不織布を仮固定した後、極細繊維発生型繊
維を同様に処理して極細繊維束繊維よりなる極細繊維絡
合不織布とし、弾性重合体を含有させて極細繊維束繊維
絡合不織布と弾性重合体とからなるシート状基体とする
。そして、シート状基体を構成する極細繊維またはその
束状繊維でなる極細繊維の単繊維平均繊度は、ライティ
ング効果のある優美な外観、しなやかな触感や風合い、
発色性のバランスから０．０１〜０．８デニールが好ま
しい。更に好ましくは単繊維平均繊度０．０３〜０．２
デニールの極細繊維である。また繊維絡合不織布の目付
は、最終製品としての繊維絡合不織布の目付は８０〜５
００ｇ／ｍ”が好ましい。
繊維絡合不織布に含有させるポリウレタンは、■、９−
ノナンジオールおよび／または２−メチル１．８−オク
タンジオールを主体としたジオールと脂肪族ジカルボン
酸との縮合物である平均分子量７００〜４０００のポリ
エステル系ジオールをソフトセグメントとし、芳香環を
含むジイソシアネート、環状基を有する脂肪族ジイソシ
アネート、脂環族ジイソシアネートなどの群から選ばれ
た少なくとも１種類の有機ジイソシアネートと、活性水
素原子を２個有する化合物を鎖伸長剤として反応させて
得たポリウレタンである。好ましくは１００％伸長時の
応力が０．２０〜１．００ Ｋｇ／ｍｍ”のポリウレタ
ンを使用する。ポリウレタンの１００％伸長時の応力が
上記の範囲外であると、弾性挙動が大きくなったり、あ
るいは固くなったりして天然皮革のような膨らみ感のあ
る柔軟な風合いの製品が得られない。本発明のポリウレ
タンは、ポリエステル系ポリウレタンのもつ湿式凝固性
、耐薬品性、耐光性などの長所を総て備え、更に、耐熱
水性、耐加水分解性などにも優れたものである。
また、ポリウレタンには効果を損なわない範囲内で、合
成ゴム、塩化ビニル系重合体、ケイ素原子を含む弾性重
合体などから選ばれた重合体を混合したポリウレタン組
成物として使用してもよい。
ポリウレタンは、適当な溶剤、例えばジメチルホルムア
ミド等に溶解して従来公知の方法で繊維絡合不織布に、
含浸し、非溶剤又は溶剤と非溶剤の混合液中で凝固させ
る。シート状基体に占めるポリウレタンあるいはポリウ
レタン組成物の量は固形分として重量比で１０〜５０重
量％、好ましくは１５〜４０重量％の範囲で含有させる
。シート状基体に占めるポリウレタンを主体とした重合
体の含有量が上記の範囲外であると、腰がなくなったり
、膨らみ感が得られなくなったり、弾性挙動が大きくな
ったりして好ましくないものとなる。
次に、極細繊維絡合不織布とポリウレタンを主体とした
重合体とからなるシート状基体は、少なくとも一面に極
細繊維を主体とした繊維立毛面を形成させる。すなわち
、シート状基体は所望の厚さに厚み合わせを行った後あ
るいは厚み合わせを行う前に、シート状基体の少なくと
も一面を起毛機による起毛処理、サンドペーパーなどに
よるパフィング処理などによって繊維立毛を主体とした
立毛面を形成させてスェード調繊維立毛シートとする。
そして、シートの厚み合わせを行っていないものにあっ
ては所望の厚さに裏面を処理して厚み合わせを行う。ス
ェード調シート状物の製品厚さは０．２５〜２゜Ｏｍ＋
ａの範囲であることが好ましく、０．３０〜１．５ｍｍ
の範囲であることがより好ましい。
本発明のスェード調シート状物は、更に、分散染料によ
る染色及び還元洗浄を行う。使用する染料は、分散染料
であれば特に制限はないが、特に良好な耐光堅牢度が要
求される場合には、キノン系の分散染料が好ましく用い
られる。染色条件は、ポリエステル系布帛の通常の染色
条件、即ち高温染色が可能である。液流染色機を使用し
て狭いノズルを通過させるなどの方法により機械的揉布
を行いつつ染色することは、柔軟な風合いを得るうえで
好ましい。
染色後は、従来のポリエステル系布帛と同様にアルカリ
条件下で、ポリウレタン中に余剰の染料が残らないよう
十分に還元洗浄を行う。還元洗浄が不十分であると、得
られたスェード調シート状物は洗濯堅牢度、特にドライ
クリーニング堅牢度、摩擦堅牢度などの悪いものとなる
。還元剤は、アルカリ条件下で十分な還元能を有するも
のであれば特に制限はな〈従来公知のものが使用でき、
還元洗浄力、価格などの点からハイドロサルファイドが
好ましく用いられる。また、染着していない染料の除去
を促進するうえで、還元浴に界面活性剤などの洗浄助剤
を添加することは好ましい。還元洗浄においても、機械
的揉布を行うことは風合い改善のうえで好ましい方法で
ある。更に、乾燥時にタンブラ−乾燥機などにより機械
的揉布作用を与えることも風合い改善のうえで好ましい
。
更に、染色、還元洗浄後、乾燥前表面が湿っている状態
および／または乾燥後にブラシなどにより立毛の整毛を
行うことは、外観改善のうえで好ましい。The sheet-like substrate comprising a fiber-entangled nonwoven fabric of polyester ultrafine fibers and/or their bundled fibers and an elastic polymer mainly composed of polyurethane, which constitutes the suede-like sheet-like material of the present invention, constitutes a fiber-entangled nonwoven fabric. For example, ultrafine fibers obtained by spinning and drawing spinnable polymers such as polyethylene terephthalate, ethylene terephthalate copolymer, polybutylene terephthalate, and other fiber-forming polyesters are used as the polyester fibers. The ultrafine fiber nonwoven fabric is made into a nonwoven fabric, and an elastic polymer is added thereto to form a sheet-like substrate consisting of the ultrafine fiber entangled nonwoven fabric and the elastic polymer. Alternatively, the above spinnable polymer is used as an ultrafine fiber component,
Spun into ultra-fine fibers with other spinnable polymers,
A three-dimensionally entangled nonwoven fabric is formed using the fibers obtained by stretching, and (a) after the three-dimensionally entangled nonwoven fabric contains an elastic polymer, the ultrafine fiber-generating fibers are treated with at least one component of a solvent, a decomposition agent, etc. treated with a chemical treatment agent and/or mechanically processed to transform into ultrafine fiber bundle fibers to form a sheet-like substrate consisting of an ultrafine fiber bundle entangled nonwoven fabric and an elastic polymer, or (b) three-dimensional After temporarily fixing the entangled nonwoven fabric, the ultrafine fiber-generated fibers are treated in the same manner to obtain an ultrafine fiber entangled nonwoven fabric made of ultrafine fiber bundle fibers, and an elastic polymer is added to form the ultrafine fiber bundle fiber entangled nonwoven fabric and an elastic polymer. A sheet-like substrate is formed by combining the two. The average fineness of the single fibers of the ultrafine fibers or bundles of ultrafine fibers that make up the sheet-like substrate has an elegant appearance with a lighting effect, a supple feel and texture,
From the viewpoint of color development balance, 0.01 to 0.8 denier is preferable. More preferably, the average fineness of single fibers is 0.03 to 0.2.
It is an ultra-fine denier fiber. In addition, the fiber entangled nonwoven fabric has a basis weight of 80 to 5 as a final product.
00 g/m" is preferable. The polyurethane contained in the fiber-entangled nonwoven fabric is
A diisocyanate containing an aromatic ring and a polyester diol having an average molecular weight of 700 to 4000, which is a condensation product of a diol mainly composed of nonanediol and/or 2-methyl 1,8-octanediol, and an aliphatic dicarboxylic acid, as a soft segment, A polyurethane obtained by reacting at least one type of organic diisocyanate selected from the group such as aliphatic diisocyanates having a cyclic group and alicyclic diisocyanates with a compound having two active hydrogen atoms as a chain extender. Preferably, polyurethane with a stress at 100% elongation of 0.20 to 1.00 Kg/mm" is used. If the stress at 100% elongation of the polyurethane is outside the above range, the elastic behavior may become large or Otherwise, it becomes hard, making it impossible to obtain a product with a soft texture with a bulge like natural leather.The polyurethane of the present invention has the advantages of wet coagulation, chemical resistance, and light resistance of polyester polyurethane. In addition, polyurethane has excellent hot water resistance, hydrolysis resistance, etc. In addition, polyurethane may contain synthetic rubber, vinyl chloride polymer, and elastic polymers containing silicon atoms within the range that does not impair its effectiveness. It may also be used as a polyurethane composition in which a polymer selected from the following is mixed.The polyurethane is dissolved in a suitable solvent such as dimethylformamide and applied to a fiber-entangled nonwoven fabric by a conventionally known method.
Impregnated and coagulated in a non-solvent or a mixture of a solvent and a non-solvent. The amount of polyurethane or polyurethane composition in the sheet-like substrate is in the range of 10 to 50% by weight, preferably 15 to 40% by weight as a solid content. If the content of the polymer, which is mainly composed of polyurethane, in the sheet-like substrate is outside the above range, it will be undesirable, such as loss of stiffness, inability to obtain a feeling of fullness, and increased elastic behavior. . Next, the sheet-like substrate made of an ultrafine fiber-entangled nonwoven fabric and a polymer mainly composed of polyurethane is formed with a raised fiber surface mainly composed of ultrafine fibers on at least one surface. In other words, after or before adjusting the thickness to a desired thickness, the sheet-like substrate is subjected to a napping treatment using a napping machine, a puffing treatment using sandpaper, etc. on at least one side of the sheet-like substrate to mainly make the fibers stand up. A suede-like fiber napped sheet is formed by forming a napped surface. If the thickness of the sheet has not been adjusted, the back side is processed to the desired thickness and the thickness is adjusted. Product thickness of suede-like sheet material is 0.25~2゜Om+
It is preferably in the range of a, 0.30 to 1.5 mm
It is more preferable that it is in the range of . The suede-like sheet material of the present invention is further dyed with a disperse dye and subjected to reduction cleaning. The dye used is not particularly limited as long as it is a disperse dye, but quinone-based disperse dyes are preferably used when particularly good light fastness is required. The dyeing conditions can be the usual dyeing conditions for polyester fabrics, that is, high temperature dyeing. In order to obtain a soft texture, it is preferable to dye the material while mechanically rubbing it through a narrow nozzle using a jet dyeing machine. After dyeing, the polyurethane is thoroughly reduced and washed under alkaline conditions in the same way as conventional polyester fabrics so that no excess dye remains in the polyurethane. If reduction washing is insufficient, the obtained suede-like sheet material will have poor washing fastness, especially dry cleaning fastness and rubbing fastness. There are no particular restrictions on the reducing agent as long as it has sufficient reducing ability under alkaline conditions (any conventionally known reducing agent can be used;
Hydrosulfide is preferably used from the viewpoint of reducing cleaning power, price, etc. Further, in order to promote the removal of undyed dye, it is preferable to add a cleaning aid such as a surfactant to the reducing bath. Even in reduction cleaning, mechanical rubbing is a preferred method for improving texture. Furthermore, it is preferable to apply a mechanical rubbing action using a tumble dryer or the like during drying to improve the texture. Further, after dyeing and reduction washing, it is preferable to straighten the raised hair with a brush or the like while the surface is wet before drying and/or after drying in order to improve the appearance.
次に、本発明の実施態様を具体的な実施例で説明するが
、本発明はこれら実施例に限定されるものではない。な
お、実施例中の部および％はことわりのない限り、重量
に関するものである。
実施例１１比較例！
ポリエチレンテレフタレート５０ｇ、低密度ポリエチレ
ン５０部からなり、島本数が５０本（ポリエチレンテレ
フタレートが島成分）、繊度４．５デニールの海島ａｈ
ａよりなる３次元絡合不織布に、ノナンジオール−１，
９と２−メチルオクタンジオール−１，８との混合物（
モル比５０１５０）とアジピン酸とを縮合重合させて得
られた平均分子量２０００のポリエステルジオール、４
．４’−ジフェニルメタンジイソシアネート及びエチレ
ングリコールをモル比１ ：４ ＝３で反応させて得ら
れたポリウレタンの１０％ジメチルホルムアミド溶液を
含浸し、湿式凝固した後熱トルエン中で海鳥繊維の海成
分を溶解除去して、シート状基体を得た。このシート状
基体の表面をサンドペーパーでパフィングして起毛した
後、裏面をパフィングして厚み合わせを行い、厚さ０．
８＋ｓｍの繊維立毛シートを得た。
この繊維立毛シートを液流染色機を用い、分散染料で下
記の条件で染色した。
染料 ： ダイヤニクスレ１ＦＢＮ−５Ｅ
４ ％ ｏｗｆダイヤニクスイエローブテウ
ン２Ｒ−ＦＳ １ ％ ｏｗｆ浴比：３０
：１
温度：１３０℃
時間：６０分
染色後の繊維立毛シートを更に下記のアルカリ条件によ
り還元洗浄を行った。
還元剤：ハイドロサルファイト ４ｇ／ｎＮａＯＨ２
ｇ／ｆｌ
温 度： ８０℃
時 間：２０分
乾燥後、表面の立毛をナイロンブラシにより整毛したと
ころ、鮮明な発色と優美なライティング効果のある外観
、そして柔軟な風合いを有するスェード調シート状物を
得た。
比較のため、上記染色後の繊維立毛シートを下記の酸性
条件下に還元洗浄を行った。
還元剤二 ネルムＴルｆヒＦナトクウムスルネキシレ
ー） ４ｇ／ｇ助 剤：酢酸（９０％）
ｐＨ：４．０
浴 比：１：２０
温 度：８０℃
時 間：２０分
実施例同様、乾燥後表面の立毛をナイロンブラシにより
整毛したところ、実施例と同様な外観のスェード調シー
ト状物が得られたが、染色堅牢度比較例２
実施例１において含浸用ポリウレタンとして、平均分子
量２０００のポリカプロラクトングリコール、４．４’
−ジフェニルメタン、エチレングリコールをモル比１
：４ ：３の割合で反応させて得たポリエステル系ポリ
ウレタンを用いた以外は同様にしてスェード調シート状
物を得た。
しかし、このものは染色及びアルカリ還元洗浄によって
ポリウレタンが著しく劣化し、商品として必要な強度を
有していなかった。Next, embodiments of the present invention will be explained using specific examples, but the present invention is not limited to these examples. Note that parts and percentages in the examples are by weight unless otherwise specified. Example 11 Comparative example! Sea island ah consisting of 50 g of polyethylene terephthalate and 50 parts of low-density polyethylene, with 50 islands (polyethylene terephthalate is the island component) and a fineness of 4.5 denier.
Nonanediol-1,
A mixture of 9 and 2-methyloctanediol-1,8 (
A polyester diol with an average molecular weight of 2000 obtained by condensation polymerization of adipic acid (mole ratio 50150), 4
．． Polyurethane obtained by reacting 4'-diphenylmethane diisocyanate and ethylene glycol at a molar ratio of 1:4 = 3 was impregnated with a 10% dimethylformamide solution, wet-coagulated, and then the sea component of the seabird fiber was dissolved and removed in hot toluene. A sheet-like substrate was obtained. After puffing the surface of this sheet-like substrate with sandpaper to raise the fluff, the back surface was puffed to adjust the thickness until the thickness was 0.
A fiber napped sheet of 8+sm was obtained. This fiber napped sheet was dyed with a disperse dye using a jet dyeing machine under the following conditions. Dye: Dainikure 1FBN-5E
4% OWF DIANICS YELLOW BUTTEUN 2R-FS 1% OWF Bath Ratio: 30
: 1 Temperature: 130° C. Time: 60 minutes The dyed fiber nap sheet was further subjected to reduction washing under the following alkaline conditions. Reducing agent: Hydrosulfite 4g/nNaOH2
g/fl Temperature: 80℃ Time: 20 minutes After drying, the raised hairs on the surface were smoothed with a nylon brush, resulting in a suede-like sheet with vivid coloring, an appearance with an elegant lighting effect, and a soft texture. I got something. For comparison, the dyed fiber nap sheet was subjected to reduction cleaning under the following acidic conditions. Reducing agent (2) 4g/g Auxiliary agent: acetic acid (90%) pH: 4.0 Bath ratio: 1:20 Temperature: 80°C Time: 20 minutes Same as example After drying, the raised naps on the surface were smoothed with a nylon brush, and a suede-like sheet material with the same appearance as in the example was obtained. 2000 polycaprolactone glycol, 4.4'
-Diphenylmethane and ethylene glycol in a molar ratio of 1
A suede-like sheet material was obtained in the same manner except that a polyester-based polyurethane obtained by reacting at a ratio of :4:3 was used. However, the polyurethane of this product significantly deteriorated due to dyeing and alkali reduction washing, and it did not have the strength necessary for commercial use.
本発明の方法によって製造したスェード調シート状物は
通常のポリエステルと同様の染色方法によって染色出来
、鮮明な発色性と優れた染色堅牢度、優美なライティン
グ効果のある外観、柔軟な風合いを有するスェード調シ
ート状物である。
特許出願人 株式会社 り ラ しThe suede-like sheet material produced by the method of the present invention can be dyed using the same dyeing method as ordinary polyester, and has vivid color development, excellent color fastness, an appearance with an elegant lighting effect, and a soft texture. It is a sheet-like material. Patent applicant RiRa Shi Co., Ltd.
Claims (1)
た弾性重合体とからなり、少なくとも一面が極細繊維を
主体とした立毛を有するスエード調シート状物の製造方
法において、 ［１］ポリエステル極細繊維またはポリエステル極細繊
維発生型繊維の３次元絡合不織布を製造する工程、 ［２］上記不織布に、１，９−ノナンジオールおよび／
または２−メチル１，８−オクタンジオールを主体とし
たジオールとジカルボン酸との縮合物である平均分子量
７００〜４０００のポリエステルをソフトセグメントと
したポリウレタンを含浸し、湿式凝固する工程、 ［３］［１］の不織布が極細繊維発生型繊維の場合にお
いては、該繊維を極細繊維に変成する工程、 ［４］シート表面を起毛し、ポリエステル極細繊維立毛
を形成させる工程、 ［５］揉布機能を有する液流染色機で分散染料により染
色する工程、 ［６］アルカリ条件下で還元洗浄する工程、を順次行う
ことを特徴とするスエード調シート状物の製造方法。(1) In a method for producing a suede-like sheet-like product made of ultrafine polyester fibers and an elastic polymer mainly composed of polyurethane, and having naps on at least one side mainly composed of ultrafine fibers, [1] Ultrafine polyester fibers or ultrafine polyester fibers. A step of producing a three-dimensional entangled nonwoven fabric of fiber-generating fibers, [2] Adding 1,9-nonanediol and/or
Or a step of impregnating polyurethane with a soft segment made of polyester having an average molecular weight of 700 to 4,000, which is a condensation product of a diol mainly composed of 2-methyl 1,8-octanediol, and a dicarboxylic acid, and wet-coagulating it, [3][ When the nonwoven fabric in step 1] is an ultrafine fiber generation type fiber, a step of converting the fiber into an ultrafine fiber, [4] a step of raising the surface of the sheet to form napped polyester ultrafine fibers, and [5] a kneading function. A method for producing a suede-like sheet material, comprising sequentially performing the following steps: dyeing with a disperse dye using a jet dyeing machine, and [6] reducing washing under alkaline conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10311789A JPH02289187A (en) | 1989-04-21 | 1989-04-21 | Production of suede sheetlike material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10311789A JPH02289187A (en) | 1989-04-21 | 1989-04-21 | Production of suede sheetlike material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02289187A true JPH02289187A (en) | 1990-11-29 |
Family
ID=14345648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10311789A Pending JPH02289187A (en) | 1989-04-21 | 1989-04-21 | Production of suede sheetlike material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02289187A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102357750B1 (en) * | 2021-09-01 | 2022-02-08 | (주)미쥬 | Eco-friendly vegan leather using tangerine peel and manufacturing method thereof |
-
1989
- 1989-04-21 JP JP10311789A patent/JPH02289187A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102357750B1 (en) * | 2021-09-01 | 2022-02-08 | (주)미쥬 | Eco-friendly vegan leather using tangerine peel and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW539787B (en) | Napped leather-like sheet material and method of producing same | |
| JP7112222B2 (en) | Raised artificial leather | |
| JP2004092005A (en) | Stretchable laminated fabric and method for producing the same | |
| JPS602429B2 (en) | Composite sheet material | |
| TW201942443A (en) | Napped artificial leather | |
| JPH02289187A (en) | Production of suede sheetlike material | |
| JP3381809B2 (en) | Method for producing knitted fabric containing polyurethane elastic fiber | |
| JPH0633577B2 (en) | Manufacturing method of silver-polished leather | |
| JP2000248427A (en) | Polyester fiber | |
| JP3181639B2 (en) | Nylon 66 knitted fabric | |
| KR20090109235A (en) | Process Of Producing Circular Knit Type Base Fabric For Artificial Leather | |
| JPH01192884A (en) | Method for dyeing leathery sheet | |
| KR100221604B1 (en) | Multi-tone artificial leather | |
| JP2005042250A (en) | Leather-like sheet and method for producing the same | |
| KR100337990B1 (en) | Method of manufacturing nubuck-type artificial leather | |
| JP2004339617A (en) | Sueded artificial leather | |
| JP2948940B2 (en) | Stretch woven and knitted fabric and method for producing the same | |
| KR100313569B1 (en) | Manufacturing method of high density non-woven fabric | |
| JPH07197383A (en) | Production of stretchable synthetic leather | |
| JP3109761B2 (en) | Suede-like artificial leather and manufacturing method thereof | |
| JPH11229279A (en) | Leatherlike sheet material | |
| TWI342351B (en) | Leather-like sheet and production method thereof | |
| KR100221602B1 (en) | Artificial leather | |
| KR100339197B1 (en) | Method of manufacturing artificial leather | |
| JPH02242980A (en) | Production of suede-toned sheet excellent in color fastness |