JP7234137B2 - 水流交絡エアレイドプロセスおよび産業用ワイプ製品 - Google Patents
水流交絡エアレイドプロセスおよび産業用ワイプ製品 Download PDFInfo
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Description
以下に、本願出願の当初の特許請求の範囲に記載された発明を付記する。
[1] 不織ウェブの製造方法であって、
解繊された天然セルロース繊維と、接着繊維と、任意選択で人工繊維との混合物を調製すること;
前記混合物をエアフォーミングして少なくとも1つの均質なエアレイドウェブを得ること;
前記エアレイドウェブを水流交絡して、少なくとも片面で前記ウェブを固めること;ならびに
前記水流交絡したウェブを乾燥及び熱接着して前記不織ウェブを得ること;
を含み、
前記エアフォーミングと水流交絡が連続工程で行われ、
前記繊維混合物中の前記天然セルロース繊維の含有率が50重量%~90重量%であり、前記接着繊維と任意選択の人工繊維の含有率が10重量%~50%重量%であり、
非繊維バインダーまたは接着剤が使用されず、
連続繊維が使用されず、
前記天然セルロース繊維の繊維長が3.5mm以下であり、
前記接着繊維の繊維長が6.0~12.0mmであり、
前記任意選択の人工繊維の繊維長が6.0mm~12.0mmであり、
前記不織ウェブの坪量が20g/m 2 ~100g/m 2 であり、
前記不織ウェブの厚さが0.25mm~2mmであり、
前記重量%が前記不織ウェブの総乾燥重量に対するものである、方法。
[2] 前記坪量が40g/m 2 ~60g/m 2 である、[1]に記載の方法。
[3] 前記人工繊維が存在し、前記人工繊維が合成ポリマー及び持続可能なポリマーのうちの少なくとも1つを含む、[1]に記載の方法。
[4] 前記天然セルロース繊維が木材パルプであり、前記人工繊維がビスコースまたはリヨセルである、[3]に記載の方法。
[5] 前記接着繊維が、ポリマーのシースと、前記シースとは異なる少なくとも1つのポリマーのコアとを有する二成分繊維であり、前記シースポリマーの融点が前記コアの少なくとも1つのポリマーの融点よりも低い、[1]に記載の方法。
[6] 前記接着繊維の前記シースがポリエチレンまたはPLMのうちの少なくとも1つを含み、前記接着繊維の前記コアがポリプロピレンとポリエステルのうちの少なくとも1つを含む、[5]に記載の方法。
[7] 前記接着繊維の含有率が前記乾燥した不織ウェブの8重量%~25重量%である、[1]に記載の方法。
[8] 前記木材パルプが亜硫酸パルプ化により得られる亜硫酸パルプである、[4]に記載の方法。
[9] 前記エアレイドウェブが水流交絡され、前記ウェブを両面で固める、[1]に記載の方法。
[10] 前記水流交絡での加えられる圧力が0.07バール/kg/時間/m~11バール/kg/時間/mである、[1]に記載の方法。
[11] 前記水流交絡での前記加えられる圧力が1.0バール/kg/時間/m~3バール/kg/時間/mである、[10]に記載の方法。
[12] 前記乾燥工程の温度が前記シースポリマーの前記融点よりも10℃または最大10℃高いが、前記乾燥温度は前記少なくとも1つのコアポリマーの前記融点よりも低いことを条件とする、[5]に記載の方法。
[13] 前記水流交絡したウェブをエンボス加工することであって、前記エンボス加工工程が前記エアフォーミング及び水流交絡と連続することを更に含む、[1]に記載の方法。
[14] 前記乾燥及び熱接着した不織ウェブをクレープ加工することを更に含む、[1]に記載の方法。
[15] 前記エアレイドウェブの前記エアフォーミングが単一のエアフォーマーの中で行われる、[1]に記載の方法。
[16] 前記エアレイドウェブの前記エアフォーミングが2つ以上のエアフォーマーの中で行われ、各ウェブの前記繊維の含有率が同じである、[1]に記載の方法。
[17] 前記エアレイドウェブの前記エアフォーミングが2つ以上のエアフォーマーの中で行われ、少なくとも1つのウェブの繊維含有率が別のウェブの前記繊維含有率と異なる、[1]に記載の方法。
[18] 前記エアレイドウェブが、前駆体ウェブの予備形成または連続フィラメントウェブの組み込みなしで前記エアフォーマーのキャリア上で直接形成される、[1]に記載の方法。
[19] 縦方向における引張強度の前記縦方向に垂直な方向における引張強度に対する比(MD/CD)が3未満である、[1]に記載の方法。
[20] 前記不織ウェブのCD湿潤引張強度が少なくとも8N/5cmであり、MD/CD比が3未満である、[1]に記載の方法により得られる不織ウェブ。
[21] 60重量%~85重量%の木材パルプ;
20重量%~5重量%のリヨセル;及び
10重量%~20重量%の接着繊維;
を含み、前記不織ウェブの前記坪量が40g/m 2 ~60g/m 2 であり、MD/CD比が3未満であり、CD湿潤引張強度が少なくとも12N/5cmであり、前記不織ウェブの前記厚さが0.5mm~1.5mmである、
[20]に記載の不織ウェブ。
[22] 60重量%~85重量%の木材パルプ;
20重量%~5重量%のビスコース;及び
10重量%~20重量%の接着繊維;
を含み、前記不織ウェブの前記坪量が40g/m 2 ~60g/m 2 であり、MD/CD比が3未満であり、CD湿潤引張強度が少なくとも12N/5cmであり、前記不織ウェブの前記厚さが0.5mm~1.5mmである、
[20]に記載の不織ウェブ。
[23] [20]に記載の不織ウェブ;及び
溶剤、洗浄剤、殺菌剤、脱臭剤、消毒剤、研磨剤、及び帯電防止剤からなる群から選択される少なくとも1つ;
を含む産業用ワイプ。
Claims (23)
- 不織ウェブの製造方法であって、
解繊された天然セルロース繊維と、接着繊維と、人工繊維との混合物を調製すること;
前記混合物をエアフォーミングして少なくとも1つの均質なエアレイドウェブを得ること;
前記エアレイドウェブを水流交絡して、少なくとも片面で前記ウェブを固めること;ならびに
前記水流交絡したウェブを乾燥及び熱接着して前記不織ウェブを得ること;
を含み、
前記エアフォーミングと水流交絡が連続工程で行われ、
前記繊維混合物中の前記解繊された天然セルロース繊維の含有率が50重量%~90重量%であり、前記接着繊維と人工繊維の含有率が10重量%~50%重量%であり、
非繊維バインダーまたは接着剤が使用されず、
連続繊維が使用されず、
前記解繊された天然セルロース繊維の繊維長が3.5mm以下であり、
前記接着繊維の繊維長が6.0~12.0mmであり、
前記人工繊維の繊維長が6.0mm~12.0mmであり、
前記不織ウェブの坪量が20g/m2~100g/m2であり、
前記不織ウェブの厚さが0.25mm~2mmであり、
前記重量%が前記不織ウェブの総乾燥重量に対するものである、方法。 - 前記坪量が40g/m2~60g/m2である、請求項1に記載の方法。
- 前記人工繊維が合成ポリマー及び持続可能なポリマーのうちの少なくとも1つを含む、請求項1に記載の方法。
- 前記解繊された天然セルロース繊維が木材パルプであり、前記人工繊維がビスコースまたはリヨセルである、請求項3に記載の方法。
- 前記接着繊維が、ポリマーのシースと、前記シースとは異なる少なくとも1つのポリマーのコアとを有する二成分繊維であり、前記シースポリマーの融点が前記コアの少なくとも1つのポリマーの融点よりも低い、請求項1に記載の方法。
- 前記接着繊維の前記シースがポリエチレンまたはPLMのうちの少なくとも1つを含み、前記接着繊維の前記コアがポリプロピレンとポリエステルのうちの少なくとも1つを含む、請求項5に記載の方法。
- 前記接着繊維の含有率が前記乾燥した不織ウェブの8重量%~25重量%である、請求項1に記載の方法。
- 前記木材パルプが亜硫酸パルプ化により得られる亜硫酸パルプである、請求項4に記載の方法。
- 前記エアレイドウェブが水流交絡され、前記ウェブを両面で固める、請求項1に記載の方法。
- 前記水流交絡での加えられる圧力が0.07バール/kg/時間/m~11バール/kg/時間/mである、請求項1に記載の方法。
- 前記水流交絡での前記加えられる圧力が1.0バール/kg/時間/m~3バール/kg/時間/mである、請求項10に記載の方法。
- 前記乾燥工程の温度が前記シースポリマーの前記融点よりも10℃または最大10℃高いが、前記乾燥温度は前記少なくとも1つのコアポリマーの前記融点よりも低いことを条件とする、請求項5に記載の方法。
- 前記水流交絡したウェブをエンボス加工することであって、前記エンボス加工工程が前記エアフォーミング及び水流交絡と連続することを更に含む、請求項1に記載の方法。
- 前記乾燥及び熱接着した不織ウェブをクレープ加工することを更に含む、請求項1に記載の方法。
- 前記エアレイドウェブの前記エアフォーミングが単一のエアフォーマーの中で行われる、請求項1に記載の方法。
- 前記エアレイドウェブの前記エアフォーミングが2つ以上のエアフォーマーの中で行われ、各ウェブの前記繊維の含有率が同じである、請求項1に記載の方法。
- 前記エアレイドウェブの前記エアフォーミングが2つ以上のエアフォーマーの中で行われ、少なくとも1つのウェブの繊維含有率が別のウェブの前記繊維含有率と異なる、請求項1に記載の方法。
- 前記エアレイドウェブが、前駆体ウェブの予備形成または連続フィラメントウェブの組み込みなしで前記エアフォーマーのキャリア上で直接形成される、請求項1に記載の方法。
- 縦方向における引張強度の前記縦方向に垂直な方向における引張強度に対する比(MD/CD)が3未満である、請求項1に記載の方法。
- 解繊された天然セルロース繊維と、接着繊維と、人工繊維との混合物を含む不織ウェブであって、
前記繊維混合物中の前記解繊された天然セルロース繊維の含有率が50重量%~90重量%であり、
前記接着繊維と人工繊維の含有率が10重量%~50%重量%であり、
非繊維バインダーまたは接着剤が使用されず、
連続繊維が使用されず、
前記解繊された天然セルロース繊維の繊維長が3.5mm以下であり、
前記接着繊維の繊維長が6.0~12.0mmであり、
前記人工繊維の繊維長が6.0mm~12.0mmであり、
前記不織ウェブの坪量が20g/m2~100g/m2であり、
前記不織ウェブの厚さが0.25mm~2mmであり、
前記重量%が前記不織ウェブの総乾燥重量に対するものであり、
前記不織ウェブのCD湿潤引張強度が少なくとも8N/5cmであり、MD/CD比が3未満であり、
前記不織ウェブは、
前記混合物をエアフォーミングして少なくとも1つの均質なエアレイドウェブを得ること;
前記エアレイドウェブを水流交絡して、少なくとも片面で前記ウェブを固めること;ならびに
前記水流交絡したウェブを乾燥及び熱接着して前記不織ウェブを得ること;
により得られる、不織ウェブ。 - 前記解繊された天然セルロース繊維として、60重量%~85重量%の木材パルプ;
前記人工繊維として、20重量%~5重量%のリヨセル;及び
10重量%~20重量%の接着繊維;
を含み、前記不織ウェブの前記坪量が40g/m2~60g/m2であり、MD/CD比が3未満であり、CD湿潤引張強度が少なくとも12N/5cmであり、前記不織ウェブの前記厚さが0.5mm~1.5mmである、
請求項20に記載の不織ウェブ。 - 前記解繊された天然セルロース繊維として、60重量%~85重量%の木材パルプ;
前記人工繊維として、20重量%~5重量%のビスコース;及び
10重量%~20重量%の接着繊維;
を含み、前記不織ウェブの前記坪量が40g/m2~60g/m2であり、MD/CD比が3未満であり、CD湿潤引張強度が少なくとも12N/5cmであり、前記不織ウェブの前記厚さが0.5mm~1.5mmである、
請求項20に記載の不織ウェブ。 - 請求項20に記載の不織ウェブ;及び
溶剤、洗浄剤、殺菌剤、脱臭剤、消毒剤、研磨剤、及び帯電防止剤からなる群から選択される少なくとも1つ;
を含む産業用ワイプ。
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US15/595,251 US10415166B2 (en) | 2017-05-15 | 2017-05-15 | Hydroentangled airlaid process and industrial wipe products |
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PCT/US2018/028564 WO2018212904A1 (en) | 2017-05-15 | 2018-04-20 | Hydroentangled airlaid process and industrial wipe products |
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KR102547710B1 (ko) | 2023-06-23 |
EA201992710A1 (ru) | 2020-03-17 |
JP2020519781A (ja) | 2020-07-02 |
BR112019023922A2 (pt) | 2020-06-09 |
IL270547B2 (en) | 2023-12-01 |
EP3610062A1 (en) | 2020-02-19 |
AU2018268805A1 (en) | 2019-11-28 |
CL2019003256A1 (es) | 2020-02-21 |
US20180326699A1 (en) | 2018-11-15 |
IL270547A (ja) | 2019-12-31 |
CA3063402A1 (en) | 2018-11-22 |
US10415166B2 (en) | 2019-09-17 |
KR20200015480A (ko) | 2020-02-12 |
CO2019012613A2 (es) | 2020-01-17 |
MX2019013640A (es) | 2020-01-21 |
WO2018212904A1 (en) | 2018-11-22 |
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