TW467738B - Absorbent article containing superabsorbent material - Google Patents

Absorbent article containing superabsorbent material Download PDF

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Publication number
TW467738B
TW467738B TW088103585A TW88103585A TW467738B TW 467738 B TW467738 B TW 467738B TW 088103585 A TW088103585 A TW 088103585A TW 88103585 A TW88103585 A TW 88103585A TW 467738 B TW467738 B TW 467738B
Authority
TW
Taiwan
Prior art keywords
superabsorbent material
patent application
absorbent
item
renewable
Prior art date
Application number
TW088103585A
Other languages
Chinese (zh)
Inventor
Gunilla Himmelman
Pia Kalentun
Asa Svensson
Annika Samuelsson
Angela Hjerpe
Original Assignee
Sca Hygiene Prod Ab
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 Sca Hygiene Prod Ab filed Critical Sca Hygiene Prod Ab
Application granted granted Critical
Publication of TW467738B publication Critical patent/TW467738B/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15203Properties of the article, e.g. stiffness or absorbency
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530481Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A61F2013/530583Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the form
    • A61F2013/530649Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the form in sponge or foam
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530481Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A61F2013/5307Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the quantity or ratio of superabsorbent material
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530481Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A61F2013/530708Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the absorbency properties
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530481Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A61F2013/530708Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the absorbency properties
    • A61F2013/530737Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the absorbency properties by the absorbent capacity
    • A61F2013/530744Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the absorbency properties by the absorbent capacity by the absorbency under load

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Materials For Medical Uses (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Biological Depolymerization Polymers (AREA)

Abstract

Absorbent structure in an absorbent article such as a diaper, sanitary napkin, incontinence guard, wound dressing, bed protection etc., said structure containing a superabsorbent material possibly in combination with other absorption- or carrier materials and where the superabsorbent material has a content of renewable and/or biodegradeable raw material of at least 20% by weight, calculated on the dry weight of superabsorbent material, and has a phase angle δ ≤ 8 DEG defined as the phase shift between deformation and strain measured at rheological measurements.

Description

467738 467738 經濟部中央標準局員工消費合作社印製 五、發明説明(1 ) 技術領域 本發明係關於一種於尿片、衛生棉、失禁墊、創傷敷 料、床保護墊等吸收物件之吸收結構,該結構含有超吸收 材料可能與其他吸收材料或載劑材料组合,及此處該超吸 收材料具有可再生及/或可生物分解原料含量基於超吸收 材料乾重計算至少爲20%重量比。 超吸收材料可呈粒狀形式例如顆粒 '丸粒、片粒或纖維 粒;或呈薄膜、發泡體或塗層於纖維形式,及具有高度吸 收液體如水及體液如尿液及血液能力,同時溶脹且形成非 水溶性凝膠。 發明背景 所謂超吸收材爲可吸收其本身重量數倍、十倍或以上液 體之交聯聚合物。其進一步即使被施加外力時仍可保有液 體°廣泛用於衛生物件例如尿布、失禁塾、衛生棉等,其 通常係以粒狀形式存在例如顆粒、丸粒、片粒或纖維粒且 混合或層合其他吸收材料,通常爲纖維素纖維。 超吸收材通常爲具有不同化學組成之交聯聚合物。常見 超吸收材爲交聯聚丙烯酸酯。丙烯酸及聚丙烯酸酯爲基於 油原料亦即非可再生原料之合成產物。但環保意識日漸升 高,希望轉成基於可再生及/或可生物分解原料的材料。 特別適用於抛棄式產品,其於用後即被拋棄。多醣類如纖 維素及澱粉爲可生物分解及可再生且可用作超吸收材原料 之材料範例。其他有用的多醣類之例爲黃膠,褐藻酸鹽, 角質聚糖’果膠’瓜爾膠(gUar gUin )。蛋白質類及肽類亦 w 4 _ 本紙珉尺度適用中國國家標準(CNS ) A4規格(2Ϊ0Χ297公董) .(請先閱讀背面之注意事項再氣r本頁)467738 467738 Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the Invention (1) Technical Field The present invention relates to an absorbent structure for absorbent articles such as diapers, sanitary pads, incontinence pads, wound dressings, bed protection pads, etc. The structure contains a superabsorbent material that may be combined with other absorbent materials or carrier materials, and here the superabsorbent material has a renewable and / or biodegradable raw material content based on the dry weight of the superabsorbent material of at least 20% by weight. Superabsorbent materials can be in the form of granules such as granules, pellets, or fibers; or in the form of films, foams, or coatings on fibers, and have the ability to highly absorb liquids such as water and body fluids such as urine and blood, while Swells and forms a water-insoluble gel. BACKGROUND OF THE INVENTION A so-called superabsorbent material is a crosslinked polymer that can absorb a liquid several times, ten times or more its own weight. It further retains liquid even when an external force is applied. It is widely used in sanitary articles such as diapers, incontinence pads, sanitary napkins, etc. It is usually present in granular form such as granules, pellets, tablets or fiber granules and mixed or layered Combined with other absorbent materials, usually cellulose fibers. Superabsorbents are usually crosslinked polymers with different chemical compositions. Common superabsorbents are crosslinked polyacrylates. Acrylic acid and polyacrylates are synthetic products based on oil feeds, that is, non-renewable feeds. However, environmental awareness is increasing, and it is hoped that it will be converted to materials based on renewable and / or biodegradable materials. Particularly suitable for disposable products, which are discarded after use. Polysaccharides such as cellulose and starch are examples of materials that are biodegradable and renewable and can be used as raw materials for superabsorbents. Examples of other useful polysaccharides are xanthan gum, alginate, keratan's pectin 'guar gum (gUar gUin). Proteins and peptides are also w 4 _ The standard of this paper is applicable to Chinese National Standard (CNS) A4 specification (2Ϊ0 × 297 public director). (Please read the precautions on the back first and then anger this page)

*1T 4 6 773 8 A7 B7 五、發明説明(2 ) 屬可再生來源聚合物之例。 某種超吸收材於吸收物件之性能依據多種因素決定,例 如超吸收材於何處且如何混合入吸收結構,顆粒形狀,顆 粒大小及物理及化學性質如吸收能力、凝膠強度及液體保 有能力。 一種稱作凝膠封阻現象對例如含超吸收材之纖維狀結構 的吸收能力造成負面影響。凝膠封阻表示超吸收粒子濕潤 時形成凝膠而封阻纖維狀結構或粒子間之孔隙,因而妨礙 液體由濕潤區轉運至吸收物件其餘各區以及妨礙液體轉運 至全部粒子。如此涉及吸收本體之總吸收能力利用率不良 及涉及滲漏風險。 奇凝膠強度亦即超吸收材交聯牵涉凝膠封阻風險下降。 但凝膠強度過高導致吸收能力過低。凝膠強度一詞表示凝 膠變形的傾向,可定義爲凝膠之切變模量。係於流變計測 量且計算爲(a)施加於樣本之剪應力/變形與(b)樣本顯示 之相對變形/剪應力間之關係。切變模量(T係以單位P a測 量。例如述於EP-B-254 476。 經濟部中央標準局員工消費合作社印製 另一種常見的特徵化超吸收材及其用於吸收物件如尿 布、失禁塾、衛生棉等之能力之方法係測量其於加壓下吸 收液體的能力所謂之AUL (負載下之吸收能力)。此揭示 於EP-B-0,339,461。可於特殊裝置根據所謂之需求濕潤原 理於某種負载通常爲2kPa (爲本技術領域已經建立的標準 負载)測量超吸收材吸收鹽水溶液的能力。 其他常用測量參數爲自由溶脹(FSC )能力,其係以允許 -5- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) 467738 at B7 五、發明説明(3 ) 自由溶脹時之克吸收液體/克超吸收材測量;以及離心後 保留液體的能力,離心保留能力(CRC )。根據後述方法, 允許超吸收材自由吸收液體至飽和,隨後離心樣本,測量 離心後保有之吸收液體量。 此等方法皆未曾特徵化超吸收材性質,但確實告知全面 眞相,且非經常與超吸收材之產品構想有交互關聯。此點 特別適用於全體或部分基於可再生及/或可生物分解原料 之超吸收材,其通常具有低AUL値及低凝膠強度,而AUL 或前述其他測量方法皆非超吸收材於吸收物件性能之良好 測量指標。 發明目的及最主要特點 本發明目的係提供一種於前述種類之吸收物件之吸收結 構,此處吸收結構含有全體或部分基於可再生及/或可生 物分解原料之超吸收材,及其就吸收能力及獲取速率測量 顯示於吸收結構具有極佳性能。根據本發明可由超吸收材 具有相角度達成,相角定義爲於流變學測量時介於 變形與應變間之相移。 經濟部中央標準局員工消費合作社印製 超吸收材較佳具有相角(JS6度,較佳<4度及最佳;^3 度。 超吸收材較佳具有基於超吸收材之乾重計算,可再生及 /或可生物分解原料含量至少40,較佳至少60及最佳至少 8 0 %重量比。 根據替代例,超吸收材料包含交聯聚合物,此處聚合物 係基於可再生及/或可生物分解原料,及交聯劑可爲可再 -6 - 本紙張尺度適用中國國家標隼(CNS ) A4規格(210X 297公釐) A7 B7 4 :7738 五、發明説明( 生及/或可生物分解或爲非可再生/非可生物分解。 根據-具體例吸收結構可含有親水纖維與超吸收材料之 組合’此處親水纖維較佳爲纖維素絨絮紙漿、織或親水 合成纖維,及吸收結構含有基於結構總重爲5至8〇%重量 比超吸收材料。 根據另一具體例,吸收結構含有吸收性發泡體材料與超 吸收材料之组合。 根據又一具體例,超吸收材料係呈發泡體形式,及根據 另一具體例係呈塗層於含纖維材料形式。 超吸收材料具有相對低於負載下之吸收能力(AUL ),通 常於2kPa負载下對每克超吸收材料較佳爲不多於25,較 佳不多於20,及最佳不大於18毫升含〇9%重量比氯化鈉 水溶液。 發明説明 根據本發明之吸收結構意圖用於包含一片可透液蓋片; 一片不透液底片及一種吸收結構施用於其間之吸收物件。 吸收物件可爲尿片、衛生棉、失禁墊、創傷敷料、床保護 經濟部中夬標準局員工消費合作社印製· 塾等。當然吸收物件之形狀及構造可爲任意,本發明可用 於全部各種此等物件。 但環保意識漸增希望使用完全或部分基於可再生及/或 可生物分解原料的材料替代基於非可再生/非可生物分解 原料之吸收物件例如尿片中之材料。該等材料係指塑膠膜 形式之不透液底片,非織物形式之可透液蓋片及超吸收 材。 Μ崎尺度適财關家辟(CNS )从規 似撕公瘦 A7 4 6 7738 B7 五、發明説明(5 ) 基於可再生及/或可生物分解原料例如澱粉、纖維素、 褐藻酸鹽等之超吸收材料常具有低凝膠強度及低AUL値。 試驗中已經證實具有.大致相等的FSC (自由溶脹能力), CRC (離心保有能力)及AUL之超吸收材若與親水纖維,特 別纖維素絨絮紙漿用於吸收結構時具有極爲不同的吸收能 力。因此發明人致力於研究其他參數,當超吸收材合併入 意圖用爲吸收物件例如展片之吸收結構時該參數與超吸收 材之吸收能力間顯示明確交互關聯。 流變學爲材料變形及流動性科學。流變學一詞包括當被 施力,包括尋常重力或更高力時材料發生的全部的變形。 流變學係有關力、變形與時間間之關係。 於全部變形能呈熱量展開於材料時標示爲黏網,表示材 料之流動性。於全部變形能儲存於材料時,稱作彈性體而 未出現流動。其中部分變形能被儲存而部分變形能展開爲 熱量之材料稱作黏彈性。 測量黏彈性材料時,材料被施加成正弦形狀應變(或稱 變形,取決於使用的儀器類型),測量材料之正弦形狀變 形(或應變)。變形與應變間之相移稱作相角β。對理想彈 性材料相角爲0度,及對理想黏性材料相角爲9 0度。 經由對應變/變形關係作向量分析,獲得一種成份G'係 位於變形相位及一種成份G"係與變形相位偏位9 0度。 模量G 1及G"之値較高,則該材料分別具有較大彈性及 黏性。根據前述ΕΡ-Β-254 476,係測量模量G1,根據本發 明已經證:實不足以預測超吸收材料用於吸收結構的功能。 -8- 本紙張尺度適用中國國家標準(CNS ) Λ4規格(210 X 297公釐) (請先閱讀背面之注意事項再4,r本頁) 訂 經濟部中央標準局員工消費合作杜印製 467738 A7 經濟部中央標準局貝工消費合作社印製 B7 五、發明説明(6 ) 今曰根據本發明顯示相角定義爲tajl d 乃可顯示超 吸收材用於吸收結構構想性質顯示明顯交互關聯之參數。 具有ci 28度之該等超吸收材就吸收能力及獲取速率而言 特別顯示良好產品功能。尤其出乎意外的發現也適用於具 有於2 kPa之AUL値低抵1 〇克/克之超吸收材,由下表1顯 然易知。 流變學測量係於τ A儀器公司之Carri Med CSL2 100進 行。泥變計爲”經過控制的應力"儀器。測量係根據已經 確^•的流變學方法進行’故業界人士容易重複測量。 全部測量中’材料係遵照1克吸收材料對2 〇克合成尿液 原則製作爲樣本。爲了試驗材料於溶脹過程之平衡位置, 樣本+合成尿液混合物於試驗前任其放置2小時,但距離 混合物製備時間6小時以内。 測夏劃分爲二步驟,此處第一步驟包括所謂之s,應力掃 拂”藉此定義材料之線性面積。當變形時出現的線性黏彈 性面積過小,故材料僅由其平衡位置產生可忽略的變化。 由此線性位置選擇剪應力,此時材料係於頻率掃拂下測 試。由頻率掃拂獲得0.U0 Hz之G,、G"及d量。下表所 示之G *、G"及β値全部保於1.13 Hz頻率獲得。 接受試驗之基於可再生原料之超吸收材料爲基於交聯 CMC (羧甲基纖維素)之多種試驗物質:Ai、a2、A3、 A4、A5、A6、A7、A8 ' A9、A10、All、A12、A13 或A14。基於交聯CMC之超吸收材料之製備例如述於EP_ B-201 895。也試驗若干基於交聯羧甲基澱粉b 1、b 2或 -9- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X 公釐) (請先閲请背面之注.意事項再填f;本頁) 灯 經濟部中央標準局員工消費合作社印製 467738 A7 --- B7 五、發明説明(7 ) B 3之試驗物質,其可以類似羧曱基纖維素CMC之方式生 產。也試驗基於交聯聚天冬酸酯_ Cl、C2或C3之若干試 驗物質,及例如係根據WO96/08523生產。 至於參考材料也測試得自赫司特公司稱作山衛(Sanwet) ΪΜ 71 〇〇之超吸收材料,其爲交聯聚丙烯酸鋼及純纖維素 絨絮紙衆而未混合超吸收材。 試驗之吸收構想爲20%重量比超吸收材混合化學型纖維. 素絨絮紙漿。紙漿結構基重爲500克/平方米。 除d _値外,也測量超吸收材於2 kPa之FSC (克/克), CRC (克/克)及AUL (克/克)。試驗液體皆爲合成尿液配方 如後:60毫莫耳KCL (4‘5克),130毫莫耳NaCl (7_6克), 3.5 毫莫耳MgS04 (0.42 克),2.0 毫莫耳 CaS04*2H20 (0.34 克),300毫莫耳尿素(18克)及1克0.1%萃頓(triton)溶解 於1升蒸館水a 用於試驗超吸收材於吸收結構之功能之測量方法如下: 於傾斜面之吸收能力: 樣本本體放置爲傾斜3 0度而模擬尿片於使用中的位 置,底部接觸液體浴(合成尿液)並藉抽吸吸收液體。樣本 本體於吸收液體前後稱重,吸收性係以克吸收液體/克吸 收材本體表示。 獲取時間: 以1 0分鐘間隔作三次添加每次6 0毫升液體(合成尿 液)。測量全部液體被吸收時所耗時間(目測觀察)。 測量結果示於下表1 ° -10- 本紙張尺度適用中國國家標隼(CNS ) Μ規格(21〇Χ297公澄) t請先聞讀背面之注意事項再填於,本頁)* 1T 4 6 773 8 A7 B7 V. Description of the invention (2) Examples of polymers from renewable sources. The performance of a certain superabsorbent material in an absorbent article is determined based on various factors, such as where and how the superabsorbent material is mixed into the absorbent structure, particle shape, particle size, and physical and chemical properties such as absorption capacity, gel strength, and liquid retention capacity . A phenomenon called gel blocking has a negative effect on the absorption capacity of fibrous structures such as those containing superabsorbents. Gel blocking means that the superabsorbent particles form a gel when they are wet to block the fibrous structure or the pores between the particles, thus preventing the liquid from being transferred from the wet area to the remaining areas of the absorbent article and the liquid from being transferred to all particles. This involves poor utilization of the total absorptive capacity of the absorbent body and the risk of leakage. Odd gel strength, that is, superabsorbent cross-linking, involves a reduced risk of gel blocking. But too high gel strength results in too low absorption capacity. The term gel strength indicates the tendency of the gel to deform and can be defined as the shear modulus of the gel. It is measured by rheometer and calculated as (a) the relationship between the shear stress / deformation applied to the sample and (b) the relative deformation / shear stress displayed by the sample. Shear modulus (T is measured in units of Pa. For example, described in EP-B-254 476. The Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs printed another common characteristic superabsorbent material and its use for absorbing articles such as diapers. The method of the ability of incontinence, incontinence, sanitary cotton, etc. is to measure its ability to absorb liquid under pressure, so-called AUL (absorption capacity under load). This is disclosed in EP-B-0,339,461. It can be used in special devices according to the so-called demand The wetting principle measures the ability of a superabsorbent material to absorb saline solution at a load of usually 2kPa (a standard load that has been established in the technical field). Other commonly used measurement parameters are the free swelling (FSC) ability, which allows Paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) 467738 at B7 V. Description of the invention (3) Measurement of grams of absorbing liquid / gram of super absorbing material during free swelling; and ability to retain liquid after centrifugation, centrifugation retention Capability (CRC). According to the method described below, the super absorbent material is allowed to freely absorb liquid to saturation, and then the sample is centrifuged to measure the amount of absorbed liquid retained after centrifugation. Neither method has ever characterized the properties of superabsorbent materials, but it does inform the general public and does not often have an interactive relationship with the product idea of superabsorbent materials. This is particularly applicable to all or partly based on renewable and / or biodegradable materials Superabsorbent materials usually have low AUL 値 and low gel strength, and AUL or other measurement methods mentioned above are not good indicators of superabsorbent material performance in absorbent objects. Objects of the invention and the main features The purpose of the present invention is to provide a The absorbent structure of the aforementioned type of absorbent article, where the absorbent structure contains a superabsorbent material wholly or partly based on renewable and / or biodegradable raw materials, and its absorption capacity and acquisition rate measurements show excellent performance in the absorbent structure. According to the present invention, the superabsorbent material can be achieved with a phase angle, which is defined as the phase shift between deformation and strain during rheological measurement. The superabsorbent material printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs preferably has a phase angle. (JS6 degrees, preferably < 4 degrees and best; ^ 3 degrees. The super absorbent material preferably has a dry weight calculation based on the super absorbent material. And / or a biodegradable raw material content of at least 40, preferably at least 60 and most preferably at least 80% by weight. According to an alternative, the superabsorbent material comprises a crosslinked polymer, where the polymer is based on renewable and / or biodegradable materials. Biodegradable raw materials and cross-linking agents can be re--6-This paper size is applicable to China National Standard (CNS) A4 specifications (210X 297 mm) A7 B7 4: 7738 5. Description of the invention (Health and / or biodegradable Decompose or be non-renewable / non-biodegradable. According to specific examples, the absorbent structure may contain a combination of hydrophilic fibers and superabsorbent materials' here the hydrophilic fibers are preferably cellulose fluff pulp, woven or hydrophilic synthetic fibers, and absorbent The structure contains 5 to 80% by weight superabsorbent material based on the total weight of the structure. According to another specific example, the absorbent structure contains a combination of an absorbent foam material and a superabsorbent material. According to yet another specific example, the superabsorbent material is in the form of a foam, and according to another specific example, it is in the form of a coating on a fiber-containing material. The superabsorbent material has a relatively lower absorption capacity (AUL) under load, usually under 2kPa load, it is preferably no more than 25, preferably no more than 20, and most preferably no more than 18 ml containing 〇9% by weight aqueous sodium chloride solution. DESCRIPTION OF THE INVENTION The absorbent structure according to the present invention is intended to include a liquid-permeable cover sheet; a liquid-impermeable backsheet and an absorbent structure to which an absorbent article is applied. The absorbent articles can be printed by diapers, sanitary napkins, incontinence pads, wound dressings, bed protection, etc. by the Consumers' Cooperative of the China Standards Bureau of the Ministry of Economic Affairs. Of course, the shape and configuration of the absorbent article can be arbitrary, and the present invention can be applied to all kinds of these articles. However, environmental awareness is increasing, and it is desired to use materials based wholly or partly on renewable and / or biodegradable materials instead of absorbent articles based on non-renewable / non-biodegradable materials such as diapers. These materials refer to liquid-impermeable backsheets in the form of plastic films, liquid-permeable coversheets in the form of fabrics, and superabsorbent materials. The Mizaki scale is suitable for wealth management (CNS), and it is similar to A7 4 6 7738 B7. 5. Description of the invention (5) Based on renewable and / or biodegradable raw materials such as starch, cellulose, alginate, etc. Superabsorbent materials often have low gel strength and low AUL 値. It has been confirmed in the test that it has approximately equal FSC (free swelling capacity), CRC (centrifugal holding capacity) and AUL superabsorbent materials with very different absorption capacity when used with hydrophilic fibers, especially cellulose fluff pulp for absorbent structures. . Therefore, the inventors have devoted themselves to studying other parameters, and when the superabsorbent material is incorporated into an absorbent structure intended for an absorbent article such as a display sheet, there is a clear and interactive relationship between this parameter and the absorptive capacity of the superabsorbent material. Rheology is the science of material deformation and fluidity. The term rheology includes the complete deformation of a material when a force is applied, including ordinary gravity or higher. The relationship between rheology and force, deformation and time. When all the deformation energy is spread on the material with heat, it is marked as sticky net, which indicates the fluidity of the material. When the full deformation can be stored in the material, it is called an elastomer without flowing. A material in which part of the deformation can be stored and part of which can be expanded into heat is called viscoelasticity. When measuring viscoelastic materials, the material is applied with a sinusoidal strain (or deformation, depending on the type of instrument used), and the sinusoidal shape deformation (or strain) of the material is measured. The phase shift between deformation and strain is called the phase angle β. The phase angle is 0 degrees for an ideal elastic material and 90 degrees for an ideal viscous material. Through a vector analysis of the strain / deformation relationship, a component G 'system is located at the deformation phase and a component G " system is offset from the deformation phase by 90 degrees. The higher the modulus G1 and G ", the material has greater elasticity and viscosity, respectively. According to the aforementioned EP-B-254 476, the modulus G1 is measured, and it has been proved according to the present invention that it is not enough to predict the function of the superabsorbent material for an absorbent structure. -8- This paper size applies to the Chinese National Standard (CNS) Λ4 specification (210 X 297 mm) (Please read the precautions on the back first, and then this page, page 4) Order the consumer cooperation of the Central Standards Bureau of the Ministry of Economic Affairs Du printed 467738 A7 Printed by the Central Bureau of Standards, Ministry of Economic Affairs, Baker ’s Consumer Cooperative, B7 V. Description of the invention (6) According to the present invention, the display phase angle is defined as tajl d, which is a parameter that can show the superabsorbent material used to absorb the conceptual properties of the structure and show obvious interaction . These superabsorbents with ci 28 degrees particularly show good product functions in terms of absorption capacity and acquisition rate. Especially unexpected findings are also applicable to superabsorbents with AUL at 2 kPa as low as 10 g / g. It is obvious from Table 1 below. Rheological measurements were performed on Carri Med CSL2 100 from τA Instruments. The mud variometer is a "controlled stress" instrument. The measurement is performed according to the established rheological method, so it is easy for the industry to repeat the measurement. In the whole measurement, the material is based on 1 gram of absorbent material and 20 grams of synthetic material. The urine principle is made as a sample. In order to test the material in the equilibrium position of the swelling process, the sample + synthetic urine mixture is left for 2 hours before the test, but within 6 hours from the preparation time of the mixture. The measurement of summer is divided into two steps. One step includes the so-called s, stress sweep "to define the linear area of the material. The linear viscoelastic area that appears when deformed is too small, so the material produces negligible changes only from its equilibrium position. Select the shear stress from this linear position. At this time, the material is tested under a frequency sweep. From the frequency sweep, the G, G, and d quantities of 0. U0 Hz are obtained. G *, G " and β 値 shown in the table below are all obtained at a frequency of 1.13 Hz. The superabsorbent materials based on renewable raw materials that have been tested are various test substances based on crosslinked CMC (carboxymethyl cellulose): Ai, a2, A3, A4, A5, A6, A7, A8 'A9, A10, All, A12, A13, or A14. The production of cross-linked CMC-based superabsorbent materials is described, for example, in EP_B-201 895. Also tested several based on cross-linked carboxymethyl starch b 1, b 2 or -9- This paper size applies to Chinese National Standard (CNS) A4 specification (210X mm) (Please read the note on the back first, then fill in f (This page) Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Light Economy 467738 A7 --- B7 V. Description of the invention (7) The test substance of B 3 can be produced in a manner similar to carboxymethyl cellulose CMC. Several test substances based on cross-linked polyaspartate-Cl, C2 or C3 were also tested, and were produced, for example, according to WO96 / 08523. As for the reference material, a superabsorbent material called Sanwet TM 7100, which was obtained by Hersted, was also tested, which was a cross-linked polyacrylic steel and pure cellulose fluff paper without mixing superabsorbent materials. The absorption concept of the test is 20% by weight of superabsorbent material mixed with chemical fiber. Plain fluff pulp. The basis weight of the pulp structure is 500 g / m2. In addition to d_ 値, super absorbent materials are also measured at 2 kPa FSC (g / g), CRC (g / g) and AUL (g / g). The test liquids are all synthetic urine formulas as follows: 60 mM KCL (4'5 g), 130 mM NaCl (7_6 g), 3.5 mM MgS04 (0.42 g), 2.0 mM CaS04 * 2H20 (0.34 grams), 300 millimolar urea (18 grams) and 1 gram of 0.1% triton dissolved in 1 liter of steaming watera. The measurement method for testing the function of superabsorbent materials in the absorbent structure is as follows: Surface absorption capacity: The sample body is placed at an angle of 30 degrees to simulate the position of the diaper in use. The bottom of the sample contacts the liquid bath (synthetic urine) and absorbs the liquid by suction. The sample body was weighed before and after the liquid was absorbed, and the absorbency was expressed in grams of absorbed liquid per gram of absorbed material body. Acquisition time: Add 60 ml of liquid (synthetic urine) three times at 10 minute intervals. Measure the time it takes for the entire liquid to be absorbed (visual observation). The measurement results are shown in the following table 1 ° -10- This paper size is applicable to the Chinese National Standard (CNS) M specifications (21〇 × 297 公 明) t Please read the precautions on the back before filling in this page)

4 6 773 8 五、發明説明(8 ) 經濟部中央標準局員工消費合作社印製 表1 材料 FSC (克/克) CRC (克/克) AUL (克/克) 罐) 於傾斜面 之吸收能力 (克/克) 獲取時間(秒) 1,2,3 紙漿 - - - - 6.5 31, 87, 127 IM7100 46 28 28 1.9 13.5 20, 15, 22 A1 27 13 13 13.0 9.2 19, 34, 58 A2 29 22 11 16.0 8.8 21, 73,134 A3 39 23 9 13.0 9.5 21,45, 98 A4 40 20 13 15.0 9.0 19, 38, 81 A5 45 27 7 16.0 8.9 24, 75, 145 A6 43 25 13 15.0 9.1 22, 53, 123 A7 27 13.6 14 14.0 9.0 20, 44, 83 A8 25 13 14 15.0 9.2 20, 41,97 A9 30 18 14 15.0 9.8 18, 50, 77 A10 54 32 11 20 9.6 21, 67, 210 All 32 13 16 8.8 10.0 12,23, 36 A12 58 18 12 21 9.0 18, 90, 960 A13 37 21 14 14 10.7 16, 60, 131 A14 29 16 12 8.8 9.6 24, 24, 40 B1 26 14 15 6.0 10.7 22, 28, 42 B2 27 17 6 9.9 9.4 25, 60, 79 B3 20 12 9 10.2 23, 40, 63 Cl 31 17 8 2.9 12.1 22, 30, 49 C2 28 13 14 2.4 11.3 21,30, 49 C3 23 10 18 2.0 9.8 21,33, 54 -11 - 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) 467738 A7 B7 五、發明説明(9 進行交互關係研究顯示d値與獲取時間2及3有正面交 互關聯,亦即低d値時獲取時間低;及與吸收能力有負面 交互關聯,亦即於低d値時吸收能力高。 多重叉互關聯研究顯示CRC結合d値可説明吸收能力與 獲取時間3之結果〇 前述試驗中,呈顆粒形式之超吸收材混合纖維素絨絮紙 衆形成吸收本體。但本發明絕非限於此種吸收本體而可應 用於層狀形式超吸收粒子介於多層纖維素絨絮紙漿或其他 選擇性親水纖維,包括天然或合成纖維間。超吸收材也可 施用於多層軟紙(組織)、非織物或其他材料間。超吸收材 也可呈纖維、呈薄膜或呈於另一種材料上之塗層或發泡體 形式存在下。替代或除了纖維素絨絮紙漿外,吸收本體可 含有其他類担之親水纖維、吸收性發泡體材料等。 八請先閲讀背面之注意事項再填k本頁) 訂4 6 773 8 V. Description of the invention (8) Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs. Table 1 Material FSC (g / g) CRC (g / g) AUL (g / g) tank) Absorptive capacity on inclined surface (G / g) Acquisition time (seconds) 1,2,3 Pulp----6.5 31, 87, 127 IM7100 46 28 28 1.9 13.5 20, 15, 22 A1 27 13 13 13.0 9.2 19, 34, 58 A2 29 22 11 16.0 8.8 21, 73,134 A3 39 23 9 13.0 9.5 21, 45, 98 A4 40 20 13 15.0 9.0 19, 38, 81 A5 45 27 7 16.0 8.9 24, 75, 145 A6 43 25 13 15.0 9.1 22, 53, 123 A7 27 13.6 14 14.0 9.0 20, 44, 83 A8 25 13 14 15.0 9.2 20, 41, 97 A9 30 18 14 15.0 9.8 18, 50, 77 A10 54 32 11 20 9.6 21, 67, 210 All 32 13 16 8.8 10.0 12,23, 36 A12 58 18 12 21 9.0 18, 90, 960 A13 37 21 14 14 10.7 16, 60, 131 A14 29 16 12 8.8 9.6 24, 24, 40 B1 26 14 15 6.0 10.7 22, 28, 42 B2 27 17 6 9.9 9.4 25, 60, 79 B3 20 12 9 10.2 23, 40, 63 Cl 31 17 8 2.9 12.1 22, 30, 49 C2 28 13 14 2.4 11.3 21, 30, 49 C3 23 10 18 2.0 9.8 21 , 33, 54 -11-This paper size applies to Chinese National Standard (CNS) A4 Grid (210X297 mm) 467738 A7 B7 V. Description of the invention (9 The interaction study shows that d 値 has a positive interaction with acquisition time 2 and 3, that is, the acquisition time is low at low d 値; and there is a negative interaction with the absorption capacity Correlation, that is, the absorption capacity is high at low d 値. Multiple cross-correlation studies show that CRC combined with d 说明 can explain the results of absorption capacity and acquisition time 3. In the previous test, the superabsorbent material in the form of particles was mixed with cellulose wool. The paper mass forms an absorbing body. However, the present invention is by no means limited to such an absorbent body and can be applied to a layered form of superabsorbent particles interposed between multilayer cellulose fluff pulp or other selective hydrophilic fibers, including natural or synthetic fibers. Superabsorbent materials can also be applied between multiple layers of soft paper (tissue), non-woven or other materials. The superabsorbent material may also be in the form of a fiber, a film, or a coating or foam on another material. Instead of or in addition to cellulose fluff pulp, the absorbent body may contain other types of hydrophilic fibers, absorbent foam materials, and the like. (8 Please read the notes on the back before filling this page)

經濟部t央標準局員工消費合作社印製 -12- 本紙乐尺度#用中國國家楼準(CNS〉A4規格(210X297公釐)Printed by the Consumers' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs -12- 本 纸 乐 码 # Uses China National Building Standard (CNS> A4 (210X297 mm)

Claims (1)

4 6 了了势β〇3585號專利申請案 t文申請專利範圍修正本(9〇年9月) AS B8 C8 Bg4 6 Obtained the patent application No. β 03585, the revised version of the patent application (September 90) AS B8 C8 Bg W1^ 耳 Ά 補充丨 I_ :種二及:物件中之吸收結構,該吸收物件例如尿 片、衛生棉、失禁塾、創傷敷料、床保護塾等,該吸 收結構含有一種超吸收材料可 f能組合其他吸收材料或 載Μ材料’及此處該吸收材料具有可再生及/或可生物 分解原枓含量基於超吸收材料乾重計算至少為20 量比, 其特徵為 該吸收材料具有相角5S8度,舍荔、云傲也, ^ 疋義為於流變學測量 時測得之變形與應變間之相移β 2. 如申請專利範圍第丨項之吸收 队%構,其中,菘超吸收材 料具有相角度。 3. 如申請專利範圍第i項之吸收結構,其中,該超吸收材 料具有相角度。 4. 如申請專利範圍第i項之吸收結構,其中,該超吸收材 料具有相角<5<3度。 5. 如申請專利ϋ圍第Μ之吸收結構,其中該^及收材料 具有可再生及/或可生物分解原料含量基於超吸收材料 乾重計算至少4 0 %重量比。 6. 如申請專利範圍第1項之吸收結構,其中該超吸收材料 具有可再生及/或可生物分解原料含量基於超吸收材料 乾重計算至少6 0 %重量比。 7. 如申請專利範圍第i項之吸收結構,其中該超吸收材料 具有可再生及/或可生物分解原科含量基於超吸收材料 乾重計算至少8 0 %重量比。 本紙張尺度適用中國國家標準(CNS) A4规格(210X297公釐) 4 67 73 8 A8 BS C8 D8 六、申請專利範圍 8·如申請專利範圍第1.項之吸收結構,其中,該超吸收材 料包含交聯聚合物,此處該聚合物係基於可再生及/或 可生物分解原料,及該交聯劑為可再生及/或可生物分 解或非可再生/非可生物分解。W1 ^ Ear Ά Supplement 丨 I_: Species 2 and: Absorptive structures in articles such as diapers, sanitary napkins, incontinence pads, wound dressings, bed protection pads, etc. The absorbent structure contains a superabsorbent material that can Combining other absorbent materials or M-loading materials' and here the absorbent material has a renewable and / or biodegradable original ammonium content based on the dry weight of the superabsorbent material calculated to be at least 20, which is characterized by the absorbent material having a phase angle of 5S8 Degree, She Li, Yun Aoye, ^ 疋 Yi is the phase shift β between deformation and strain measured during rheology measurement 2. As the absorption structure of the patent application No. 丨% structure, of which 菘 super absorption The material has a phase angle. 3. The absorbent structure according to item i of the patent application, wherein the superabsorbent material has a phase angle. 4. The absorption structure according to item i of the patent application scope, wherein the superabsorbent material has a phase angle < 5 < 3 degrees. 5. For example, the absorption structure No. M of the patent application, wherein the material has a renewable and / or biodegradable content of at least 40% by weight based on the dry weight of the superabsorbent material. 6. The absorbent structure according to item 1 of the patent application scope, wherein the superabsorbent material has a renewable and / or biodegradable raw material content based on the dry weight of the superabsorbent material of at least 60% by weight. 7. The absorbent structure according to item i of the patent application scope, wherein the superabsorbent material has a renewable and / or biodegradable original content of at least 80% by weight based on the dry weight of the superabsorbent material. This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) 4 67 73 8 A8 BS C8 D8 VI. Application for patent scope 8 · Absorptive structure according to item 1. of the patent scope, where the superabsorbent material It comprises a crosslinked polymer, here the polymer is based on renewable and / or biodegradable raw materials, and the crosslinker is renewable and / or biodegradable or non-renewable / non-biodegradable. 裝 9. 如申請專利範圍第1項之吸收結構,其中,其含有親水 纖維與超吸收材料的組合。 10. 如申請專利範圍第9項之吸收結構,其中,該親水纖維 包含纖維素絨絮紙漿,組織或親水合成纖維。 U_如申請專利範圍第9或1 0項之吸收結構,其中,其含有 基於結構總重5至8〇%重量比之超吸收材料β 12. 如前述申請專利範圍第丨_ 8項中任一項之吸收結構,其 中,其含有吸收性發泡體材料與超吸收材料之組合。 13. 如前述申請專利範圍第丨_ 8項中任一項之吸收結構,其 中,該超吸收材料係呈發泡體形式。 14. 如前述申請專利範圍第1 _ 8項中任一項之吸收結構,其 中’該超吸收材料係呈於纖維狀材料上之塗層形式。 15. 如申請專利範園第1項之吸收結構’其中,該超吸收材 料具有於2 kPa負載下之吸收能力(ATjl )相對於每克超 吸收材料不多於2 5亳升含0.9%重量比氣化鈉水溶液。 16. 如申請專利範圍第1項之吸收結構,其中,該超吸收材 料具有於2 kPa負載下之吸收能力(AUL)相對於每克超 吸收材料不多於2 0毫升含0.9%重量比氯化鈉水溶液。 17. 如申請專利範圍第1項之吸收結構’其中,該超吸收材 料具有於2 kPa負載下之吸收能力(AUL)相對於每克超 -2- 本紙張尺度適用中囷國家標準(CNS) A4規格(21〇χ297公爱) 467738Device 9. The absorbent structure according to item 1 of the patent application scope, which contains a combination of hydrophilic fibers and a superabsorbent material. 10. The absorbent structure according to item 9 of the patent application scope, wherein the hydrophilic fiber comprises cellulose fluff pulp, tissue or hydrophilic synthetic fiber. U_ Absorptive structure such as item 9 or 10 of the scope of patent application, wherein it contains super absorbent material β based on the total weight of the structure 5 to 80% by weight β 12. As described in any of the aforementioned patent scope 丨 _ 8 An absorbent structure according to one item, which contains a combination of an absorbent foam material and a superabsorbent material. 13. The absorptive structure according to any one of the aforementioned claims No. 丨 _8, wherein the superabsorbent material is in the form of a foam. 14. The absorptive structure according to any one of items 1 to 8 of the aforementioned patent application scope, wherein 'the superabsorbent material is in the form of a coating on a fibrous material. 15. For example, in the absorption structure of the patent application No.1, wherein the superabsorbent material has an absorption capacity (ATjl) under a load of 2 kPa, not more than 25 liters per gram of superabsorbent material, containing 0.9% by weight. Than vaporized sodium aqueous solution. 16. The absorbent structure according to item 1 of the patent application range, wherein the superabsorbent material has an absorption capacity (AUL) under a load of 2 kPa relative to not more than 20 ml per gram of superabsorbent material containing 0.9% by weight of chlorine Aqueous sodium solution. 17. As for the absorption structure in item 1 of the scope of patent application, where the superabsorbent material has an absorption capacity (AUL) under a load of 2 kPa, relative to each gram of super-2- This paper applies the China National Standard (CNS) A4 specification (21〇297 public love) 467738 C8 ________D8 六、申請專利範圍 啄收材料不多於18毫升含0·9%重量比氣化鈉水溶液。 18· —種吸收物件,其包含一可透液體蓋層,一不透液體 底層及一吸收結構包封於其間,其特徵為,該吸收結 構屬於如申請專利範圍第1項之該種吸收結構。 19.如申請專利範園第1 8項之吸收物件,其係為尿片、衛 生棉' 失禁墊、創傷敷料、或床保護墊。 -3- 本紙張尺度適用中國國家標準(CNS) Α4規格(210X 297公釐) 4 6 了了势β〇3585號專利申請案 t文申請專利範圍修正本(9〇年9月) AS B8 C8 BgC8 ________D8 VI. Scope of patent application No more than 18 milliliters of pecking materials containing 0.9% by weight of gasified sodium aqueous solution. 18. An absorbent article comprising a liquid-permeable cover layer, a liquid-impermeable bottom layer and an absorbent structure enclosed therebetween, characterized in that the absorbent structure belongs to the absorbent structure as described in item 1 of the scope of patent application . 19. The absorbent article according to item 18 of the patent application park, which is a diaper, sanitary cotton 'incontinence pad, wound dressing, or bed protection pad. -3- This paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) 4 6 The patent application No. β3585 has been revised and the patent application scope amendment (September 90) AS B8 C8 Bg W1^ 耳 Ά 補充丨 I_ :種二及:物件中之吸收結構,該吸收物件例如尿 片、衛生棉、失禁塾、創傷敷料、床保護塾等,該吸 收結構含有一種超吸收材料可 f能組合其他吸收材料或 載Μ材料’及此處該吸收材料具有可再生及/或可生物 分解原枓含量基於超吸收材料乾重計算至少為20 量比, 其特徵為 該吸收材料具有相角5S8度,舍荔、云傲也, ^ 疋義為於流變學測量 時測得之變形與應變間之相移β 2. 如申請專利範圍第丨項之吸收 队%構,其中,菘超吸收材 料具有相角度。 3. 如申請專利範圍第i項之吸收結構,其中,該超吸收材 料具有相角度。 4. 如申請專利範圍第i項之吸收結構,其中,該超吸收材 料具有相角<5<3度。 5. 如申請專利ϋ圍第Μ之吸收結構,其中該^及收材料 具有可再生及/或可生物分解原料含量基於超吸收材料 乾重計算至少4 0 %重量比。 6. 如申請專利範圍第1項之吸收結構,其中該超吸收材料 具有可再生及/或可生物分解原料含量基於超吸收材料 乾重計算至少6 0 %重量比。 7. 如申請專利範圍第i項之吸收結構,其中該超吸收材料 具有可再生及/或可生物分解原科含量基於超吸收材料 乾重計算至少8 0 %重量比。 本紙張尺度適用中國國家標準(CNS) A4规格(210X297公釐)W1 ^ Ear Ά Supplement 丨 I_: Species 2 and: Absorptive structures in articles such as diapers, sanitary napkins, incontinence pads, wound dressings, bed protection pads, etc. The absorbent structure contains a superabsorbent material that can Combining other absorbent materials or M-loading materials' and here the absorbent material has a renewable and / or biodegradable original ammonium content based on the dry weight of the superabsorbent material calculated to be at least 20, which is characterized by the absorbent material having a phase angle of 5S8 Degree, She Li, Yun Aoye, ^ 疋 Yi is the phase shift β between deformation and strain measured during rheology measurement 2. As the absorption structure of the patent application No. 丨% structure, of which 菘 super absorption The material has a phase angle. 3. The absorbent structure according to item i of the patent application, wherein the superabsorbent material has a phase angle. 4. The absorption structure according to item i of the patent application scope, wherein the superabsorbent material has a phase angle < 5 < 3 degrees. 5. For example, the absorption structure No. M of the patent application, wherein the material has a renewable and / or biodegradable content of at least 40% by weight based on the dry weight of the superabsorbent material. 6. The absorbent structure according to item 1 of the patent application scope, wherein the superabsorbent material has a renewable and / or biodegradable raw material content based on the dry weight of the superabsorbent material of at least 60% by weight. 7. The absorbent structure according to item i of the patent application scope, wherein the superabsorbent material has a renewable and / or biodegradable original content of at least 80% by weight based on the dry weight of the superabsorbent material. This paper size applies to China National Standard (CNS) A4 (210X297 mm)
TW088103585A 1997-12-29 1999-03-09 Absorbent article containing superabsorbent material TW467738B (en)

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DE202004017052U1 (en) 2004-11-02 2005-06-09 Riesinger, Birgit Device for wound treatment using negative pressure
US20070219521A1 (en) 2006-03-17 2007-09-20 The Procter & Gamble Company Absorbent article comprising a synthetic polymer derived from a renewable resource and methods of producing said article
GB0606661D0 (en) 2006-04-03 2006-05-10 Brightwake Ltd Improvements relating to dressings
MX2008006155A (en) 2008-05-09 2009-11-09 Grupo P I Mabe Sa De C V Environmentally-friendly disposable absorbent article.
DE202010014178U1 (en) 2010-10-11 2012-01-17 Cellcomb Aktiebolag Bag-like food underlay and storage for foods
GB2493960B (en) 2011-08-25 2013-09-18 Brightwake Ltd Non-adherent wound dressing
NL2018754B1 (en) * 2017-04-20 2018-11-05 Univ Delft Tech Biobased Super-absorbing polymers
WO2019039916A1 (en) 2017-08-25 2019-02-28 주식회사 엘지화학 Sap evaluation device

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US4834735A (en) * 1986-07-18 1989-05-30 The Proctor & Gamble Company High density absorbent members having lower density and lower basis weight acquisition zones
CA2049861C (en) * 1990-08-30 1996-09-17 Nobuyuki Harada Absorbent body and absorbent article
ZA92308B (en) * 1991-09-11 1992-10-28 Kimberly Clark Co Thin absorbent article having rapid uptake of liquid
DE69219705T2 (en) * 1991-09-11 1997-11-27 Kimberly Clark Co Composite absorbent materials and absorbent articles containing them
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