JP2013208410A5 - - Google Patents

Description

[Example 6]
[Surface tension of blood containing blood modifying agents]
The surface tension of blood containing a blood modifying agent was measured by a pendant drop method using a contact angle meter Drop Master 500 manufactured by Kyowa Interface Science Co., Ltd. The surface tension was measured after adding a predetermined amount of blood modifying agent to sheep defibrinated blood and shaking sufficiently.
Although the measurement is automatically performed by the instrument, the surface tension γ is obtained by the following equation (see FIG. 14).

Claims (11)

An absorbent article comprising a liquid permeable sheet, a liquid impermeable sheet, and an absorber provided between the liquid permeable sheet and the liquid impermeable sheet,
A stretchable region having an expandable bellows portion and a flexible region surrounding the stretchable region are formed in a liquid supply region that receives a supply of liquid in the liquid permeable sheet ,
The absorbent article, wherein a liquid permeable hole is formed in the extensible region and a liquid permeable hole is not formed in the flexible region .   The absorbent article according to claim 1, wherein a plurality of extensible areas having an expandable bellows portion are formed in the liquid supply area, and the flexible area surrounds each extensible area.   The absorbent article according to claim 2, wherein the flexible region is formed in a mesh shape, and the stretchable region is formed inside each mesh.   The flexible region extends in a direction intersecting with the longitudinal direction of the absorbent article, and is in a direction intersecting with the first region and a substantially linear first region arranged substantially parallel to each other. The absorbent article according to claim 3, wherein the absorbent article has a substantially linear second region that is extended and juxtaposed in parallel.   The bellows portion extends in the longitudinal direction of the absorbent article, is arranged side by side in the width direction of the absorbent article, and has a mountain fold portion and a valley fold portion whose cross section along the width direction is wavy. The absorbent article of any one of Claims 1-4. The absorbent article of any one of Claims 1-5 in which the pressing groove is formed in the peripheral part of the said liquid supply area | region. A blood modifying agent, wherein the liquid permeable sheet has an IOB of 0.00 to 0.60, a melting point of 45 ° C. or less, and a water solubility of 0.00 to 0.05 g with respect to 100 g of water at 25 ° C. The absorbent article of any one of Claims 1-6 containing. The blood modifying agent is the following (i) to (iii):
(I) hydrocarbons;
(Ii) from (ii-1) a hydrocarbon moiety and (ii-2) a carbonyl group (—CO—) and an oxy group (—O—) inserted between the C—C single bonds of the hydrocarbon moiety. A compound having one or more identical or different groups selected from the group consisting of: and (iii) (iii-1) a hydrocarbon moiety and (iii-2) a CC single bond of said hydrocarbon moiety One or more of the same or different groups selected from the group consisting of a carbonyl group (—CO—) and an oxy group (—O—), inserted between them, and (iii-3) of the hydrocarbon moiety A compound having one or a plurality of the same or different groups selected from the group consisting of a carboxyl group (—COOH) and a hydroxyl group (—OH), which replaces a hydrogen atom;
As well as selected from the group consisting of any combination thereof,
Here, in the compound of (ii) or (iii), when two or more oxy groups are inserted, each oxy group is not adjacent,
The absorbent article according to claim 7 . The blood modifying agent is the following (i ′) to (iii ′):
(I ′) a hydrocarbon;
(Ii ′) (ii′-1) a hydrocarbon moiety and (ii′-2) a carbonyl bond (—CO—), an ester bond (—COO) inserted between the C—C single bonds of the hydrocarbon moiety. -), A carbonate bond (-OCOO-), and an ether bond (-O-) selected from the group consisting of one or more compounds having the same or different bonds; and (iii ') (iii'- 1) a hydrocarbon moiety and (iii′-2) a carbonyl bond (—CO—), an ester bond (—COO—), a carbonate bond (—OCOO) inserted between the C—C single bonds of the hydrocarbon moiety. -), And one or a plurality of the same or different bonds selected from the group consisting of an ether bond (-O-), and (iii'-3) a carboxyl group that replaces a hydrogen atom of the hydrocarbon moiety ( -COOH) and hydroxy A compound having one or more of the same or different groups selected from the group consisting of a sil group (—OH);
As well as selected from the group consisting of any combination thereof,
Here, in the compound of (ii ′) or (iii ′), when two or more identical or different bonds are inserted, each bond is not adjacent,
The absorbent article according to claim 7 or 8 . The blood modifying agent includes the following (A) to (F):
(A) (A1) a compound having a chain hydrocarbon moiety and 2 to 4 hydroxyl groups replacing hydrogen atoms in the chain hydrocarbon moiety, (A2) a chain hydrocarbon moiety, and the chain An ester with a compound having one carboxyl group that replaces a hydrogen atom in the hydrocarbon moiety;
(B) (B1) a compound having a chain hydrocarbon moiety and 2 to 4 hydroxyl groups replacing hydrogen atoms in the chain hydrocarbon moiety, (B2) a chain hydrocarbon moiety, and the chain An ether with a compound having one hydroxyl group replacing a hydrogen atom of the hydrocarbon moiety;
(C) (C1) a carboxylic acid, a hydroxy acid, an alkoxy acid or an oxo acid containing a chain hydrocarbon moiety and 2 to 4 carboxyl groups replacing the hydrogen atom of the chain hydrocarbon moiety; C2) an ester of a chain hydrocarbon moiety and a compound having one hydroxyl group replacing a hydrogen atom of the chain hydrocarbon moiety;
(D) an ether bond (—O—), a carbonyl bond (—CO—), an ester bond (—COO—) inserted between the chain hydrocarbon moiety and the C—C single bond of the chain hydrocarbon moiety. And a compound having any one bond selected from the group consisting of a carbonate bond (—OCOO—);
(E) polyoxy C _2-6 alkylene glycol, or an alkyl ester or alkyl ether thereof; and (F) a chain hydrocarbon;
And it is selected from the group consisting of any combination thereof, the absorbent article according to any one of claims 7-9. The blood modifying agent comprises (a ₁ ) an ester of a chain hydrocarbon tetraol and at least one fatty acid, (a ₂ ) an ester of a chain hydrocarbon triol and at least one fatty acid, (a ₃ ) a chain An ester of a hydrocarbon diol and at least one fatty acid, (b ₁ ) an ether of a chain hydrocarbon tetraol and at least one aliphatic monohydric alcohol, (b ₂ ) a chain hydrocarbon triol and at least one aliphatic Ethers with monohydric alcohols, (b ₃ ) ethers of chain hydrocarbon diols with at least one aliphatic monohydric alcohol, (c ₁ ) chain hydrocarbon tetracarboxylic acids having 4 carboxyl groups, hydroxy acids , alkoxy acid or an oxo acid, at least one ester of an aliphatic monohydric alcohol, (c ₂₎ a chain hydrocarbon tricaprate with 3 carboxyl groups Bon acid, hydroxy acids, esters of alkoxy acids or oxoacids, and at least one aliphatic monohydric alcohol, (c ₃₎ a chain hydrocarbon dicarboxylic acids having two carboxyl groups, hydroxy acid, alkoxy acid or an oxo An ester of an acid and at least one aliphatic monohydric alcohol, (d ₁ ) an ether of an aliphatic monohydric alcohol and an aliphatic monohydric alcohol, (d ₂ ) a dialkyl ketone, (d ₃ ) a fatty acid and an aliphatic 1 Esters with dihydric alcohols, (d ₄ ) dialkyl carbonates, (e ₁ ) polyoxy C _2-6 alkylene glycols, (e ₂ ) esters of polyoxy C _2-6 alkylene glycols with at least one fatty acid, (e ₃ ) polyoxy Ethers of C _2-6 alkylene glycol and at least one aliphatic monohydric alcohol, (e ₄ ) polyoxy C _2- Ester of ₆ alkylene glycol and chain hydrocarbon tetracarboxylic acid, chain hydrocarbon tricarboxylic acid, or chain hydrocarbon dicarboxylic acid, (e ₅ ) polyoxy C _2-6 alkylene glycol and chain hydrocarbon tetraol , an ether of a chain hydrocarbon triol or chain hydrocarbon diol, and (f ₁₎ a chain alkane, and is selected from the group consisting of any combination thereof, any one of claims 7-10 Absorbent article as described in 1.