JP3720420B2 - Laundry paste for textile products - Google Patents
Laundry paste for textile products Download PDFInfo
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- JP3720420B2 JP3720420B2 JP19671895A JP19671895A JP3720420B2 JP 3720420 B2 JP3720420 B2 JP 3720420B2 JP 19671895 A JP19671895 A JP 19671895A JP 19671895 A JP19671895 A JP 19671895A JP 3720420 B2 JP3720420 B2 JP 3720420B2
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Description
【0001】
【発明の属する技術分野】
本発明は新規な繊維製品用洗濯糊剤に関する。さらに詳しくは特定の変性ポリビニルアルコールからなる良好な熱安定性と良好な風合いを有する繊維製品用洗濯糊剤に関する。
【0002】
【従来の技術】
従来より繊維製品用洗濯糊剤にはでんぷん,ポリビニルアルコール系樹脂(以下PVAと略記する),カルボキシメチルセルロース等の水溶液タイプのもの,あるいはポリ酢酸ビニル系のエマルジョンやカチオン性高分子を用いてビニル単量体を乳化重合せしめて得られるカチオン性エマルジョンなどのエマルジョンタイプのものなどが用いられてきた。しかし,でんぷん糊と比較してPVAは,水溶性糊剤として腐敗せずに長期保存が効くことや,得られる皮膜の強度が強いためパリッとした風合いが得られることから現在広く使用されている。また,PVAは,洗濯時における糊落ち性もエマルジョンタイプのものに比べ良好である。
【0003】
【発明が解決しようとする課題】
従来のPVA系洗濯糊剤もワイシャツ地等の合成繊維製品に対しては接着力が不足し,かつ糊付け時の脱水工程でPVAが繊維より脱落するため糊付着率が低いという欠点があった。さらに,熱安定性にも乏しく,アイロン仕上げをした際に白い衣類の場合には,その白色度を低下させたり,アイロンに汚れが付着する等の問題があった。
【0004】
【課題を解決するための手段】
本発明者等はかかる課題を解決すべく鋭意検討を重ねた結果,分子内に炭素数4以下のα−オレフィン単位を1〜24モル%含有する変性PVA(該変性PVAは,さらにカチオン性基含有単位を0.1〜10モル%含有していても良い)からなる繊維製品用洗濯糊剤を見いだし,本発明を完成するに至った。
【0005】
【発明の実施の形態】
以下に本発明についてさらに詳しく説明する。本発明の繊維製品用洗濯糊剤に用いる分子内に炭素数4以下のα−オレフィン単位を1〜24モル%含有する変性PVAは,ビニルエステルと炭素数4以下のα−オレフィンとの共重合体をケン化することにより得られる。
ビニルエステルとしては,蟻酸ビニル,酢酸ビニル,プロピオン酸ビニル,ピバリン酸ビニル等の公知のものが挙げられるが,酢酸ビニルが経済的に望ましい。
本発明に用いるα−オレフィンは,炭素数4以下のもので,例えばエチレン,プロピレン,n−ブテン,イソブテン等が挙げられるが,原料入手の容易性からエチレンが好ましい。
α−オレフィンの含有量としては,1〜24モル%,好ましくは2〜9モル%であることが必要である。α−オレフィンの含有量が1モル%未満の場合には,本発明の効果が得られず,24モル%を越える場合には水溶性もしくは水分散性が低下し洗濯時の糊落ち性が不良となる。
【0006】
本発明の繊維製品用洗濯糊剤に用いる変性PVAは,水溶性または水分散性を向上させる目的で,カチオン性基含有単位(水溶液中で解離して正電荷に帯電する化学構造単位を意味する)を共重合しても良い。
すなわち,上記の分子内に炭素数4以下のα−オレフィンとビニルエステルとカチオン性基含有単量体,例えば,トリメチル−(3−アクリルアミド−3−ジメチルプロピル)−アンモニウムクロリド,3−アクリルアミドプロピルトリメチルアンモニウムクロリド,3−メタクリルアミドプロピルトリメチルアンモニウムクロリド,N−(3−アリルオキシ−2−ヒドロキシプロピル)ジメチルアミンの4級アンモニウム塩,N−(4−アリルオキシ−3−ヒドロキシブチル)ジエチルアミンの4級アンモニウム塩,さらにはアクリルアミド,N−メチルアクリルアミド,N−エチルアクリルアミド,N,N−ジメチルアクリルアミド,ジアセトンアクリルアミド,N−メチロールアクリルアミド,メタクリルアミド,N−メチルメタクリルアミド,N−エチルメタクリルアミド,N−メチロールメタクリルアミド等の4級アンモニウム塩等とを共重合した後,これを公知の方法によりケン化することで目的のPVAが得られる。
これらのカチオン性基含有単位の含有量としては,0.1〜10モル%が好ましい。カチオン性基含有単位の含有量が0.1モル%より少ない場合にはカチオン性基の導入効果が見られず,10モル%を越える場合には本発明の変性PVAの性能が得られなくなる上,生産コストも高くなるため経済的にも好ましくない。
【0007】
さらに本発明の繊維製品用洗濯糊剤に用いられる変性PVAは,本発明の効果を損なわない範囲でその他の共重合可能なエチレン性不飽和単量体を共重合したものでも良い。このようなエチレン性不飽和単量体としては,例えばアクリル酸,メタクリル酸,(無水)フタル酸,(無水)マレイン酸,(無水)イタコン酸,アクリロニトリル,メタクリロニトリル,アクリルアミド−2−メチルプロパンスルホン酸およびそのナトリウム塩,ビニルスルホン酸ナトリウム,アリルスルホン酸ナトリウム,エチルビニルエーテル,ブチルビニルエーテル,塩化ビニル,臭化ビニル,フッ化ビニル,塩化ビニリデン,フッ化ビニリデン,テトラフルオロエチレン等が挙げられる。
さらにチオール酢酸,メルカプトプロピオン酸等のチオール化合物の存在下で,酢酸ビニル等のビニルエステル系単量体を炭素数4以下のα−オレフィンと共重合し,それをケン化することによって得られる末端変性PVAも用いることができる。
これらのエチレン性不飽和単量体単位の含有量としては,2モル%未満が好ましく,1.0モル%未満がより好ましく,0.5モル%未満がさらに好ましい。
【0008】
本発明の繊維製品用洗濯糊剤に用いる変性PVAの平均重合度は,通常100〜5000,好ましくは200〜3000から選ばれ,またそのビニルエステル部分の平均ケン化度には特に限定はないが,通常60〜100モル%,好ましくは70〜99.9モル%である。平均重合度が100未満では洗濯糊剤としての性能,特に皮膜の強度および繊維に対する接着力が低下し,5000を越えると糊液の粘度が高くなりすぎるため,作業性の点で好ましくない。また平均ケン化度が60モル%未満になると,水溶性もしくは水分散性が低下し洗濯時の糊落ち性が不良となるため好ましくない。
【0009】
本発明の変性PVAからなる繊維製品用洗濯糊剤は多くの場合変性PVA単独で十分効果を発揮するが,必要に応じて公知の他の助剤,例えば油剤,界面活性剤,柔軟剤,香料,蛍光染料,顔料,防腐剤,防カビ剤,殺菌剤等を添加しても差し支えない。また,本発明の趣旨を逸脱しない範囲で他の公知の糊剤,例えば生でんぷん,変性でんぷん(カチオン化でんぷん,カルボキシメチル化でんぷん等),一般PVA,変性PVA(カルボキシル基含有変性PVA,アクリルアミド変性PVA等),カルボキシメチルセルロース,水溶性ポリエステル樹脂,ポリエチレングリコールなどを併用しても良い。
【0010】
繊維製品の洗濯後に糊付けを実施する場合,本発明の糊剤は繊維製品に対して固形分で0.2〜5重量%の範囲で使用すると良い。本発明の糊剤は,従来のPVA系洗濯糊剤と比較して十分な水量で稀釈しても良好な糊付け効果が得られる。
また,本発明のPVA系樹脂はスプレータイプの仕上げ剤としても有効に利用できる。容器は市販のスプレータイプのものであればすべて使用可能であり,該PVA系樹脂の固形分濃度を1〜15重量%に調製した水溶液を注入して使用する。これは非溶剤系の仕上げ剤として非常に実用的である。もちろん,ジメチルエーテル等の溶剤と共に液化噴射型としての利用も可能である。
【0011】
このようにして糊付けされた繊維製品を,170℃程度の温度でアイロン掛けすることにより,熱による変色やアイロンに対する汚れ付着がなく,パリッとした仕上がりの繊維製品用洗濯糊剤が得られる。
以上のように,繊維製品用洗濯糊剤を例に挙げて本発明を説明してきたが,本発明の繊維製品用洗濯糊剤は織物の経糸糊剤,樹脂加工,捺染用糊剤あるいはフェルトや不織布のバインダーとしても有効に利用できる。
【0012】
【実施例】
以下,実施例により本発明をより具体的に説明するが,本発明はこれらの実施例によりなんら限定されるものではない。なお以下で,「部」および「%」は特に断らない限り,それぞれ「重量部」および「重量%」を意味する。
【0013】
実施例1
エチレンと酢酸ビニルとの共重合体をアルカリケン化して,エチレン単位を7.1モル%含有し,酢酸ビニル単位のケン化度95.4モル%,重合度1700のエチレン変性PVAを得た。
このエチレン変性PVAを用い下記の方法により評価を行った。結果を表1に示す。
(1)張りの評価
小型の家庭用洗濯機を用いて,10リットルの水道水に上記で得られたエチレン変性PVA水溶液(固形分濃度10%)を500g添加し,良く分散させた後,500gのシーツ(綿布;ブロード)を添加し,3分間撹拌糊付けを行った。その後,脱水機で30秒間脱水,風乾,アイロンがけをして仕上げた。以上のような方法で糊付け処理した布の張りを,対照糊付け布(でんぷん糊)と比較して触感テストを行った。
10人が試験を行い,下記の評価点の合計点で糊剤の性能を評価した。
+2 : 張りがある
+1 : やや張りがある
0 : 対照と同じ
−1 : やや張りがない
−2 : 張りがない
(2)糊剤付着量
上記(1)の方法で糊付け−風乾した綿シーツをアイロンがけして仕上げた後,20℃,65%RHで24時間調湿した。この糊付布の糊剤付着量を重量測定により求めた。
(3)アイロンへの付着性
上記(1)の方法で糊付け−風乾した綿シーツを,170℃でアイロンがけした時のアイロンへのカスの付着状況を観察した。
(4)熱着色性
上記(1)の方法で糊付け−風乾した綿シーツを,170℃×10分間の熱処理をした後,その着色度を元の生地(糊付けなし)と比較して観察した。
また,ポリエステル−綿混紡布(ポリエステル/綿=65/35;ワイシャツ用生地)についても同様の方法で糊付け−仕上げを行い、評価を行った。
【0014】
実施例2
エチレン単位を2.3モル%含有し,酢酸ビニル部分のケン化度88.0モル%,重合度1000のエチレン変性PVAを使用する以外は実施例1と同様の試験を行った。結果を表1に示す。
【0015】
実施例3
エチレン単位を5.5モル%,カチオン性基含有単位(3−アクリルアミドプロピルトリメチルアンモニウムクロリド単位)を1.0モル%含有し,酢酸ビニル部分のケン化度88.0モル%,重合度1700のエチレン−カチオン性基変性PVAを使用する以外は実施例1と同様の試験を行った。結果を表1に示す。
【0016】
比較例1
市販の無変性PVA(クラレポバールPVA−CST)を使用する以外は実施例1と同様の試験を行った。結果を表1に示す。
【0017】
比較例2
市販の無変性PVA(クラレポバールPVA−210)を使用する以外は実施例1と同様の試験を行った。結果を表1に示す。
【0018】
実施例4
エチレンと酢酸ビニルとの共重合体をアルカリケン化して,エチレン単位を5.5モル%含有し,酢酸ビニル単位のケン化度95.0モル%,重合度500のエチレン変性PVAを得た。
このエチレン変性PVAを用い下記の方法により評価を行った。結果を表2に示す。
(1)張りの評価
得られたエチレン変性PVAの5%水溶液を調製し,市販噴霧器を用いてシーツ(綿布;ブロード)に糊付けし,アイロンがけをして仕上げを行った。該糊付け処理した布の張りを,対照糊付け布(でんぷん糊)と比較して触感テストを行った。
10人が試験を行い,下記の評価点の合計点で糊剤の性能を評価した。
+2 : 張りがある
+1 : やや張りがある
0 : 対照と同じ
−1 : やや張りがない
−2 : 張りがない
(2)目詰まり試験
市販噴霧器を用いて,温度20℃,湿度65%RH環境下で10回/日噴霧を1ヶ月行い,目詰まりの有無を調べた。
(3)アイロンへの付着性
上記(1)の方法で糊付けした綿シーツを,170℃でアイロンがけした時のアイロンへのカスの付着状況を観察した。
(4)熱着色性
上記(1)の方法で糊付けした綿シーツを,170℃×10分間の熱処理をした後,その着色度を元の生地(糊付けなし)と比較して観察した。
また,ポリエステル−綿混紡布(ポリエステル/綿=65/35;ワイシャツ用生地)についても同様の方法で糊付け−仕上げを行い、評価を行った。
【0019】
実施例5
エチレン単位を5.5モル%,カチオン性基含有単位(3−アクリルアミドプロピルトリメチルアンモニウムクロリド単位)を1.0モル%含有し,酢酸ビニル部分のケン化度81.9モル%,重合度500のエチレン−カチオン性基変性PVAを使用する以外は実施例4と同様の試験を行った。結果を表2に示す。
【0020】
実施例6
エチレン単位を7.1モル%,カチオン性基含有単位(3−アクリルアミドプロピルトリメチルアンモニウムクロリド単位)を2.0モル%含有し,酢酸ビニル部分のケン化度73.1モル%,重合度500のエチレン−カチオン性基変性PVAを使用する以外は実施例4と同様の試験を行った。結果を表2に示す。
【0021】
比較例3
実施例4で使用したエチレン変性PVAの代わりに市販の無変性PVA(クラレポバール205)を使用する以外は実施例4と同様に試験を行った。結果を表2に示す。
【0022】
比較例4
実施例4で使用したエチレン変性PVAの代わりに市販の無変性PVA(クラレポバール405)を使用する以外は実施例4と同様に試験を行った。結果を表2に示す。
【0023】
【表1】
【0024】
【表2】
【0025】
【発明の効果】
本発明の繊維製品用洗濯糊剤は,天然繊維のみならず合成繊維製品に対しても糊付着量が高く,またアイロン仕上げ時の着色がなく,アイロンに対する汚れ付着のない点で優れており,極めて有用性が高い。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a novel laundry paste for textile products. More particularly, the present invention relates to a laundry sizing agent for textiles having a good thermal stability and a good texture made of a specific modified polyvinyl alcohol.
[0002]
[Prior art]
Conventionally, as a laundry sizing agent for textile products, starch, polyvinyl alcohol resin (hereinafter abbreviated as PVA), aqueous solution type such as carboxymethyl cellulose, or polyvinyl acetate emulsion or cationic polymer is used. An emulsion type such as a cationic emulsion obtained by emulsion polymerization of a monomer has been used. However, compared to starch paste, PVA is currently widely used as a water-soluble paste because it can be stored for a long time without being spoiled and the strength of the resulting film is strong, resulting in a crisp texture. . PVA also has better paste removal during washing than emulsion type.
[0003]
[Problems to be solved by the invention]
Conventional PVA-based laundry glue also has the disadvantage that adhesive strength is insufficient with respect to synthetic fiber products such as shirt fabrics, and the adhesive adhesion rate is low because PVA falls off the fibers in the dehydration process during gluing. In addition, the thermal stability is poor, and when white clothes are used for ironing, there are problems such as lowering the whiteness and attaching dirt to the iron.
[0004]
[Means for Solving the Problems]
As a result of intensive studies to solve such problems, the present inventors have found that a modified PVA containing 1 to 24 mol% of an α-olefin unit having 4 or less carbon atoms in the molecule (the modified PVA further comprises a cationic group). The present invention has been completed by finding a laundry sizing agent for textile products, which may contain 0.1 to 10 mol% of a content unit.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in more detail below. The modified PVA containing 1 to 24 mol% of an α-olefin unit having 4 or less carbon atoms in the molecule used in the laundry paste for textiles of the present invention is a co-polymerization of a vinyl ester and an α-olefin having 4 or less carbon atoms. It is obtained by saponifying the coalescence.
Examples of vinyl esters include vinyl formate, vinyl acetate, vinyl propionate, vinyl pivalate, and the like, and vinyl acetate is economically desirable.
The α-olefin used in the present invention has 4 or less carbon atoms, and examples thereof include ethylene, propylene, n-butene, and isobutene. Ethylene is preferable because of easy availability of raw materials.
The α-olefin content is required to be 1 to 24 mol%, preferably 2 to 9 mol%. When the α-olefin content is less than 1 mol%, the effect of the present invention cannot be obtained, and when it exceeds 24 mol%, the water solubility or water dispersibility is lowered and the paste removal property during washing is poor. It becomes.
[0006]
The modified PVA used for the textile product laundry paste of the present invention means a cationic group-containing unit (a chemical structural unit that is dissociated in an aqueous solution and charged to a positive charge) for the purpose of improving water solubility or water dispersibility. ) May be copolymerized.
That is, in the molecule, an α-olefin having 4 or less carbon atoms, a vinyl ester and a cationic group-containing monomer such as trimethyl- (3-acrylamido-3-dimethylpropyl) -ammonium chloride, 3-acrylamidopropyltrimethyl. Ammonium chloride, 3-methacrylamidopropyltrimethylammonium chloride, quaternary ammonium salt of N- (3-allyloxy-2-hydroxypropyl) dimethylamine, quaternary ammonium salt of N- (4-allyloxy-3-hydroxybutyl) diethylamine Furthermore, acrylamide, N-methylacrylamide, N-ethylacrylamide, N, N-dimethylacrylamide, diacetone acrylamide, N-methylolacrylamide, methacrylamide, N-methylmethacrylate Amide, N- ethyl methacrylamide, N- After methylol by copolymerizing a quaternary ammonium salt such as methacrylamide, an object of the PVA is obtained by saponifying a known manner this.
The content of these cationic group-containing units is preferably from 0.1 to 10 mol%. When the content of the cationic group-containing unit is less than 0.1 mol%, the effect of introducing the cationic group is not observed, and when it exceeds 10 mol%, the performance of the modified PVA of the present invention cannot be obtained. , The production cost is also high, which is not economically preferable.
[0007]
Furthermore, the modified PVA used in the textile product laundry paste of the present invention may be one obtained by copolymerizing other copolymerizable ethylenically unsaturated monomers within a range not impairing the effects of the present invention. Examples of such ethylenically unsaturated monomers include acrylic acid, methacrylic acid, (anhydrous) phthalic acid, (anhydrous) maleic acid, (anhydrous) itaconic acid, acrylonitrile, methacrylonitrile, and acrylamido-2-methylpropane. Examples thereof include sulfonic acid and its sodium salt, sodium vinyl sulfonate, sodium allyl sulfonate, ethyl vinyl ether, butyl vinyl ether, vinyl chloride, vinyl bromide, vinyl fluoride, vinylidene chloride, vinylidene fluoride, tetrafluoroethylene and the like.
Further, a terminal obtained by copolymerizing a vinyl ester monomer such as vinyl acetate with an α-olefin having 4 or less carbon atoms in the presence of a thiol compound such as thiolacetic acid or mercaptopropionic acid, and saponifying it. Modified PVA can also be used.
The content of these ethylenically unsaturated monomer units is preferably less than 2 mol%, more preferably less than 1.0 mol%, and even more preferably less than 0.5 mol%.
[0008]
The average degree of polymerization of the modified PVA used in the textile product laundry paste of the present invention is usually selected from 100 to 5000, preferably 200 to 3000, and the average saponification degree of the vinyl ester portion is not particularly limited. , Usually 60 to 100 mol%, preferably 70 to 99.9 mol%. If the average degree of polymerization is less than 100, the performance as a laundering paste, particularly the strength of the film and the adhesive strength to fibers, is lowered, and if it exceeds 5000, the viscosity of the paste becomes too high, which is not preferable in terms of workability. On the other hand, when the average saponification degree is less than 60 mol%, it is not preferable because water solubility or water dispersibility is deteriorated and paste removal property during washing becomes poor.
[0009]
The laundry paste for textiles made of the modified PVA of the present invention is sufficiently effective in the case of the modified PVA alone, but other known auxiliary agents such as oils, surfactants, softeners, fragrances are used as necessary. , Fluorescent dyes, pigments, preservatives, fungicides, fungicides, etc. may be added. In addition, other known sizing agents such as raw starch, modified starch (cationized starch, carboxymethylated starch, etc.), general PVA, modified PVA (carboxyl group-containing modified PVA, acrylamide modified) without departing from the spirit of the present invention. PVA etc.), carboxymethyl cellulose, water-soluble polyester resin, polyethylene glycol, etc. may be used in combination.
[0010]
When gluing is performed after washing the textile product, the paste of the present invention is preferably used in a range of 0.2 to 5% by weight in solid content with respect to the textile product. Even if the paste of the present invention is diluted with a sufficient amount of water as compared with the conventional PVA-based laundry paste, a good pasting effect can be obtained.
The PVA resin of the present invention can also be effectively used as a spray type finishing agent. Any container of a commercially available spray type can be used, and an aqueous solution prepared by adjusting the solid content concentration of the PVA resin to 1 to 15% by weight is used. This is very practical as a non-solvent finish. Of course, it can be used as a liquefied jet type with a solvent such as dimethyl ether.
[0011]
By ironing the fiber product thus glued at a temperature of about 170 ° C., there is no discoloration due to heat or adhesion of dirt to the iron, and a crisp finished textile product laundry glue is obtained.
As described above, the present invention has been described by taking the textile product laundry paste as an example. The textile product laundry paste of the present invention is a warp paste for textiles, a resin processing, a paste for printing, a felt, It can also be used effectively as a binder for nonwoven fabrics.
[0012]
【Example】
EXAMPLES Hereinafter, although an Example demonstrates this invention more concretely, this invention is not limited at all by these Examples. In the following, “part” and “%” mean “part by weight” and “% by weight”, respectively, unless otherwise specified.
[0013]
Example 1
A copolymer of ethylene and vinyl acetate was alkali saponified to obtain an ethylene-modified PVA containing 7.1 mol% of ethylene units, a saponification degree of vinyl acetate units of 95.4 mol%, and a polymerization degree of 1700.
This ethylene-modified PVA was evaluated by the following method. The results are shown in Table 1.
(1) Evaluation of tension Using a small household washing machine, 500 g of the ethylene-modified PVA aqueous solution (solid content 10%) obtained above was added to 10 liters of tap water and dispersed well, and then 500 g Sheets (cotton cloth; broad) were added and stirred for 3 minutes. After that, it was dehydrated, air-dried and ironed for 30 seconds with a dehydrator. A tactile sensation test was carried out by comparing the tension of the cloth subjected to the gluing treatment as described above with a control gluing cloth (starch glue).
Ten people tested and evaluated the performance of the paste with the total of the following evaluation points.
+2: Tightened +1: Slightly tensioned 0: Same as control -1: Slightly tensioned -2: Not tensioned (2) Amount of glue applied Glued by the method of (1) above-Air-dried cotton sheets After finishing by ironing, it was conditioned at 20 ° C. and 65% RH for 24 hours. The amount of glue attached to the glued cloth was determined by weight measurement.
(3) Adhesiveness to iron When the cotton sheet, which had been glued and air-dried by the method of (1) above, was ironed at 170 ° C., the state of adhesion of the residue to the iron was observed.
(4) Thermal coloring property After the cotton sheets dried and air-dried by the method of (1) were heat-treated at 170 ° C. for 10 minutes, the degree of coloring was observed in comparison with the original fabric (no pasting).
Further, the polyester-cotton blended fabric (polyester / cotton = 65/35; cloth for shirts) was subjected to gluing-finishing in the same manner and evaluated.
[0014]
Example 2
A test was conducted in the same manner as in Example 1 except that ethylene-modified PVA containing 2.3 mol% of ethylene units, having a saponification degree of 88.0 mol% of the vinyl acetate portion and a polymerization degree of 1000 was used. The results are shown in Table 1.
[0015]
Example 3
It contains 5.5 mol% of ethylene units, 1.0 mol% of cationic group-containing units (3-acrylamidopropyltrimethylammonium chloride units), has a saponification degree of vinyl acetate part of 88.0 mol% and a polymerization degree of 1700. The same test as in Example 1 was performed except that ethylene-cationic group-modified PVA was used. The results are shown in Table 1.
[0016]
Comparative Example 1
The same test as in Example 1 was performed except that commercially available unmodified PVA (Kuraray Poval PVA-CST) was used. The results are shown in Table 1.
[0017]
Comparative Example 2
The same test as in Example 1 was performed except that commercially available unmodified PVA (Kuraray Poval PVA-210) was used. The results are shown in Table 1.
[0018]
Example 4
A copolymer of ethylene and vinyl acetate was alkali saponified to obtain an ethylene-modified PVA containing 5.5 mol% of ethylene units, a saponification degree of vinyl acetate units of 95.0 mol%, and a polymerization degree of 500.
This ethylene-modified PVA was evaluated by the following method. The results are shown in Table 2.
(1) Evaluation of tension A 5% aqueous solution of ethylene-modified PVA thus obtained was prepared, glued to a sheet (cotton cloth; broad) using a commercial sprayer, and finished by ironing. A tactile sensation test was performed by comparing the tension of the glued cloth with a control glued cloth (starch glue).
Ten people tested and evaluated the performance of the paste with the total of the following evaluation points.
+2: Tension +1: Slight tension 0: Same as control -1: Slight tension-2: No tension (2) Clogging test Using a commercial sprayer, temperature 20 ° C, humidity 65% RH environment Under spraying 10 times / day for one month, the presence or absence of clogging was examined.
(3) Adhesiveness to iron When the cotton sheet glued by the method of (1) was ironed at 170 ° C., the adhesion state of the residue to the iron was observed.
(4) Thermal coloring property After the cotton sheets glued by the method of (1) were heat-treated at 170 ° C. for 10 minutes, the degree of coloring was observed in comparison with the original fabric (no gluing).
Further, the polyester-cotton blended fabric (polyester / cotton = 65/35; cloth for shirts) was subjected to gluing-finishing in the same manner and evaluated.
[0019]
Example 5
It contains 5.5 mol% of ethylene units, 1.0 mol% of cationic group-containing units (3-acrylamidopropyltrimethylammonium chloride units), has a saponification degree of vinyl acetate portion of 81.9 mol% and a polymerization degree of 500. The same test as in Example 4 was performed except that ethylene-cationic group-modified PVA was used. The results are shown in Table 2.
[0020]
Example 6
It contains 7.1 mol% of ethylene units, 2.0 mol% of cationic group-containing units (3-acrylamidopropyltrimethylammonium chloride units), has a saponification degree of 73.1 mol% of the vinyl acetate moiety and a polymerization degree of 500. The same test as in Example 4 was performed except that ethylene-cationic group-modified PVA was used. The results are shown in Table 2.
[0021]
Comparative Example 3
The test was conducted in the same manner as in Example 4 except that a commercially available unmodified PVA (Kuraray Poval 205) was used instead of the ethylene-modified PVA used in Example 4. The results are shown in Table 2.
[0022]
Comparative Example 4
The test was conducted in the same manner as in Example 4 except that a commercially available unmodified PVA (Kuraray Poval 405) was used instead of the ethylene-modified PVA used in Example 4. The results are shown in Table 2.
[0023]
[Table 1]
[0024]
[Table 2]
[0025]
【The invention's effect】
The laundry paste for textiles of the present invention is excellent in that it has a high amount of glue applied not only to natural fibers but also to synthetic fiber products, has no coloring during ironing, and does not adhere to the iron. Very useful.
Claims (2)
Priority Applications (1)
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JP19671895A JP3720420B2 (en) | 1995-08-01 | 1995-08-01 | Laundry paste for textile products |
Applications Claiming Priority (1)
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JP19671895A JP3720420B2 (en) | 1995-08-01 | 1995-08-01 | Laundry paste for textile products |
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JPH0949172A JPH0949172A (en) | 1997-02-18 |
JP3720420B2 true JP3720420B2 (en) | 2005-11-30 |
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JP19671895A Expired - Fee Related JP3720420B2 (en) | 1995-08-01 | 1995-08-01 | Laundry paste for textile products |
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JP4549474B2 (en) * | 2000-02-09 | 2010-09-22 | 株式会社クラレ | Laundry bag |
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