CN101347371A - Fibrilia hygroscopic layer - Google Patents
Fibrilia hygroscopic layer Download PDFInfo
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- CN101347371A CN101347371A CNA2008101472470A CN200810147247A CN101347371A CN 101347371 A CN101347371 A CN 101347371A CN A2008101472470 A CNA2008101472470 A CN A2008101472470A CN 200810147247 A CN200810147247 A CN 200810147247A CN 101347371 A CN101347371 A CN 101347371A
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- moisture absorption
- absorption sheet
- fibrilia
- flaxen fiber
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Abstract
The invention relates to a moisture adsorption fibrilia layer comprising at least two layers of moisture adsorption pieces that are overlapped. The moisture adsorption piece comprises a mixed moisture adsorption piece containing smashed fibrilia and smashed raw stock paper and a moisture adsorption piece of raw stock paper only containing the smashed raw stock paper, wherein, the weight percentage content of the fibrilia in the mixed moisture adsorption piece is 10 to 90wt percent. The moisture adsorption layer of the invention has the advantages of stable moisture adsorption effect, strong moisture adsorption ability, lower cost, good comfortability and easy sheet-forming.
Description
Technical field
The present invention relates to external use sanitary absorbent article field, relate to the moisture absorption layer in the external use sanitary absorbent article specifically.
Background technology
Because sanitary absorbent articles such as sanitary towel, protective pad, breast pad need to contact with human body for a long time, therefore its permeability are had higher requirements.Sanitary absorbent article is in order to reach the requirement with certain absorption liquid ability and pliability in the prior art, wherein moisture absorption layer is made by cotton material or chemical synthetic material usually, and the breathability of these materials is all undesirable, when long-time the use, when especially Yan Re weather uses down, sultry damp can be produced, skin pruritus, redness may be occurred, even disease such as herpes.
In order to improve sanitary absorbent article integral body especially wherein permeability, the antibacterial ability of moisture absorption layer, a kind of sanitary absorbent article is disclosed among the Chinese patent CN101011308A, the liquid-tight lower floor that it comprises the upper strata of the saturating liquid that contacts with human body, contact with underwear, be arranged at water conservancy diversion layer under the upper strata, be in the absorbent article core of water conservancy diversion layer and following interlayer, and these structures in this absorbent product all adopt breathability preferably Caulis et Folium Lini make.Also disclose this each layer of sanitary absorbent article structure in the prior art and directly adopted sodolin to form, again each layer structure placed in order the back and promptly obtain final finished together by the disposable compacting of molding pressing process as the top layer or by flax fiber and the compression of superabsorbent material bonding.But still have following defective in the prior art: (1) owing in the prior art, the flaxen fiber average length is long, on the one hand, winding degree inequality between fiber, fiber is difficult to reach uniform distribution, causes the moisture sorption effect instability; On the other hand, because fiber is longer, liquid is difficult to really be absorbed in the fibre structure in the moisture absorption process, and only be in fibre gap, this just means that this structure does not make full use of the flaxen fiber high hygroscopic property, make that the wettability power of moisture absorption layer is very restricted in the prior art, cause the wettability power of moisture absorption layer in the sanitary absorbent article not high.(2) material in the sanitary absorbent article all adopts Caulis et Folium Lini in the prior art, has pliability preferably in order to reach flaxen fiber, flaxen fiber after the step process such as employing process is usually come unstuck, shredding, and Caulis et Folium Lini price after treatment is higher, thereby makes that the product cost in the prior art is higher.Compare with other hygroscopic materials in the prior art in addition, the intensity of flaxen fiber is higher, soft inadequately, so the comfort level of the sanitary absorbent article of preparation is relatively poor, the sense of discomfort of user is stronger.
In addition, when the flaxen fiber average length was too short, obvolvent poor ability between fiber was difficult for compacting in flakes.
Summary of the invention
Technical problem to be solved by this invention is: poor in order to overcome in the prior art in the sanitary absorbent article moisture absorption layer the long moisture sorption effect instability, wettability power of causing of average fiber length, adopt the general anesthesia material to cause cost height, comfort level poor, and fiber when too short between fiber the obvolvent ability cause being difficult for the shortcoming of compression molding, provide a kind of and have that moisture sorption effect is stable, high wettability power, cost is lower, comfort level good, the moisture absorption layer in the sanitary absorbent article of easy compression molding.
For achieving the above object, the invention provides a kind of fibrilia hygroscopic layer, comprise that two superimposed is placed the moisture absorption sheet at least, comprise the mixing moisture absorption sheet that contains flaxen fiber of smashing and the oleo stock paper of smashing in the described moisture absorption sheet, and the oleo stock paper moisture absorption sheet that only contains the oleo stock paper of smashing, the weight percentage of flaxen fiber is 10-90wt% described in the wherein said mixing moisture absorption sheet.
The content of described flaxen fiber in described mixing moisture absorption sheet is 30-50wt%.The flaxen fiber average length is 0.5-20mm in the described mixing moisture absorption sheet, preferred 1-5mm.
Described moisture absorption sheet surface is provided with the drain lines.With described drain lines corresponding section, the fixing applying between described multilamellar moisture absorption sheet.
At least the upside of the described moisture absorption sheet of one deck and downside are provided with one of at least the super absorbent resin layer.
Described mixing moisture absorption sheet and described oleo stock paper moisture absorption sheet are alternately placed.
Described flaxen fiber is one or more in hemp, flax fiber, tossa, the ramee.Described oleo stock paper is rag paper and/or wood pulp paper.
The present invention has following advantage:
1) at first flaxen fiber is mixed with oleo stock paper before the moisture absorption layer in compacting among the present invention and smash, smashing process can reduce the flaxen fiber average length on the one hand, make its easier being evenly distributed, make that flaxen fiber all has uniform distribution in the moisture absorption sheet that at every turn suppresses, guarantee that final products have stable moisture sorption effect, in addition, because average fiber length is shorter, liquid is more prone to enter into fibrous inside, and not only stays between fiber, thereby the wettability power of moisture absorption layer is improved greatly; On the other hand, the oleo stock paper strong by flaxen fiber that the obvolvent ability is relatively poor and obvolvent ability mixes, and has solved the moisture absorption sheet and has been difficult for being pressed into flaky problem.
2) flaxen fiber is mixed back preparation moisture absorption layer with cheap oleo stock paper among the present invention in addition, in the premium properties that keeps flaxen fiber, also reduced the cost of moisture absorption layer.In addition, to contain higher, the softish composite material lamella and the alternately placement of softish oleo stock scraps of paper layer inadequately of intensity of the flaxen fiber of smashing, when keeping the premium properties that wettability power is strong, breathability is high, bacteriostasis is strong that flaxen fiber had, can improve the pliability of moisture absorption layer greatly, increase the comfort level that adopts the sanitary absorbent article of moisture absorption layer among the present invention.
Description of drawings
Fig. 1 is the longitudinal profile sketch map of the moisture absorption layer of the embodiment of the invention 1 correspondence;
Fig. 2 is the longitudinal profile sketch map of the moisture absorption layer of the embodiment of the invention 5 correspondences;
Fig. 3 is the longitudinal profile sketch map of the moisture absorption layer of the embodiment of the invention 6 correspondences.
The specific embodiment
By following each embodiment the present invention is further set forth.
Embodiment 1
As shown in Figure 1, the longitudinal sectional drawing of moisture absorption layer among the present invention, moisture absorption layer comprises that the two layers of thickness up and down of overlapping placement is about the wood pulp paper moisture absorption sheet 12 that only contains the wood pulp paper of smashing that 1-5mm contains the mixing moisture absorption sheet 11 of tossa of smashing and the wood pulp paper of smashing and is located in the about 1-5mm of thickness that mixes 11 of moisture absorption sheets, and respectively in mixing two intervals that moisture absorption sheet 11 and wood pulp paper moisture absorption sheet 12 form folder establish super absorbent resin (SAP) layers 2.Cause damage in order to prevent that super absorbent resin from leaking outside, the bilevel mixing moisture absorption sheet 11 and the edge compacting of wood pulp paper moisture absorption sheet 12 can be fitted, thereby super absorbent resin layer 2 is fixed in the interval.The tossa average length is 5mm in the mixing moisture absorption sheet 11, and tossa content is 50wt%.
By smashing the average length that process reduces tossa, make the easier mix homogeneously of tossa and make the easier fibrous inside that enters of liquid among the present invention, thereby give full play to the moisture pick-up properties of tossa, improve the wettability power of moisture absorption layer greatly.But simultaneously soft inadequately between the short fiber of length, the obvolvent ability is relatively poor, be difficult for being pressed into lamellar, therefore the wood pulp paper that tossa and softish obvolvent ability is strong mixes, make moisture absorption layer after suppressing be difficult for loose distortion, structure more closely, easier compression moulding; On the other hand, the wood pulp paper relative low price can reduce the production cost of sanitary absorbent article.In addition, owing among the present invention softish wood pulp paper moisture absorption sheet 12 and the composite fibre moisture absorption sheet that contains the higher tossa of intensity are stacked alternately, be subjected in the curling process of external force at moisture absorption layer, softish wood pulp paper moisture absorption sheet 12 can absorb a part of stress, reduce the mixing moisture absorption lamella 11 contain flaxen fiber because intensity is higher, the soft sense of discomfort of being brought inadequately, make that the sanitary absorbent article that adopts moisture absorption lamella of the present invention is in use more next to the shin, comfort level is higher.In the present embodiment wood pulp paper is smashed, can be guaranteed wood pulp paper moisture absorption sheet 12 soft texture more.
Adopt tossa as the raw material main cause of preparation moisture absorption layer to be in the present embodiment: antibiotic property is good, breathability, hygroscopicity and wet dissipation are strong, can reach more than 95% to the oidiomycetic sterilizing rate of white, can reach about 90% to colibacillary sterilizing rate, sterilizing rate to golden yellow staphylococcus also can reach about 65%, has good bactericidal effect; And tossa is the second-biggest-in-the-world cellulose fibre that is only second to Cotton Gossypii, and it is cheap.In addition, with before wood pulp paper mixes, earlier tossa is carried out shredding, can make tossa softer at tossa, the easier mix homogeneously of each material, and finally can improve the pliability of moisture absorption layer, make user more comfortable.Can certainly adopt have good breathability, the raw materials such as Caulis et Folium Lini, Fructus Cannabis and Boehmeria of bacteriostasis and sterilization ability.
The purpose that adds super absorbent resin is further to improve the wettability power of moisture absorption layer, wherein super absorbent resin is a kind of macromolecular material that contains the strong hydrophilicity group and have certain degree of cross linking usually, its water insoluble and organic solvent, water absorbing capacity can reach 500-2000 times of own wt, reach as high as more than 5000 times, after the suction immediately swelling be hydrogel, good water-retaining property is arranged.
The liquid leakage phenomenon appears when preventing that fluid flow is excessive among the present invention, on moisture absorption sheet surface pressure system drain stricture of vagina road; Simultaneously, in pressing process, moisture absorption sheet and super absorbent resin layer are being fitted with the corresponding fixed-site of drain lines, thereby the relative position that guarantees each layer in the moisture absorption layer under the user mode is fixed, can not movement and deformation.
Embodiment 2
Flaxen fiber average length in the moisture absorption sheet 1 among the embodiment 1 and flaxen fiber content are carried out conversion.In the present embodiment, the flaxen fiber average length is 1mm in the moisture absorption sheet 1, and flaxen fiber content is 30%.Because the flaxen fiber average length is shorter for 5mm, makes and improve sucting wet stability by the easier mix homogeneously of fiber; Because average length is relatively poor than short fiber obvolvent ability, so flaxen fiber content in the wet sheet of corresponding minimizing, but the antibacterial ability and the breathability of weakening moisture absorption layer that can be to a certain degree, but flaxen fiber content still has good sucting wet stability, breathability and antibacterial bacteriostatic ability when 30wt%.
Embodiment 3
Flaxen fiber average length in the moisture absorption sheet 1 among the embodiment 1 and flaxen fiber content are carried out conversion.In the present embodiment, the flaxen fiber average length is 0.5mm in the moisture absorption sheet 1, and flaxen fiber content is 10wt%.At this moment, because the flaxen fiber average length is shorter, be more prone to mix homogeneously, sucting wet stability is higher, but need to improve the content of oleo stock paper in the moisture absorption sheet simultaneously, make that moisture absorption layer breathability, antibacterial ability than flaxen fiber content be 30wt%, 50wt% decrease because flaxen fiber content is less this moment.
Embodiment 4
Flaxen fiber average length in the moisture absorption sheet 1 among the embodiment 1 and flaxen fiber content are carried out conversion.In the present embodiment, the flaxen fiber average length is 20mm in the moisture absorption sheet 1, and flaxen fiber content is 90wt%.Because average fiber length is longer relatively, so its obvolvent ability is better, can corresponding raising moisture absorption sheet in flaxen fiber content, the breathability of raising moisture absorption layer; But long flaxen fiber can be to a certain degree the sucting wet stability of reduction moisture absorption layer.
Embodiment 5
Moisture absorption layer structure to embodiment 1-4 is carried out conversion.As shown in Figure 2, only adopt four layers of moisture absorption sheet 1 in the present embodiment, and do not add the super absorbent resin layer, moisture absorption layer comprises that the two layers of thickness up and down of overlapping placement is about the wood pulp paper moisture absorption sheet 12 of 1-5mm, and the two layers of thickness that is located in 12 of the wood pulp paper moisture absorption sheets mixing moisture absorption sheet 11 that contains tossa of smashing and the wood pulp paper of smashing of about 1-5mm respectively.The mixing moisture absorption sheet 11 that intensity is higher is located in the softish wood pulp paper moisture absorption sheet 12 in the present embodiment, improves moisture absorption sheet comfort level in use, and the wettability power and the bacteriostasis antibiosis ability of moisture absorption layer have been guaranteed in the design of two-layer mixing moisture absorption sheet simultaneously.
Embodiment 6
Moisture absorption layer structure to embodiment 1-4 is carried out conversion.As shown in Figure 3, moisture absorption layer comprises that the two layers of thickness up and down of overlapping placement is about the mixing moisture absorption sheet 11 of the tossa of smashing containing of 1-5mm and the wood pulp paper of smashing, and is located in the layer thickness wood pulp paper moisture absorption sheet 12 of about 1-5mm respectively that mixes 11 of moisture absorption sheets.Only adopt three moisture absorption sheets 1 in the present embodiment, make that moisture absorption layer is more frivolous, breathability is better, be fit to fluid flow and use more after a little while; In addition, the wood pulp ply of paper that the absorbed layer therebetween is established can play dispersion, absorb the effect of stress, makes moisture absorption layer soft more, uses more comfortable.
Certainly flaxen fiber also can adopt flaxen fibers such as flax fiber, ramee, hemp among the present invention except that tossa; Wood pulp paper in the foregoing description also can adopt oleo stock paper such as rag paper, all can realize the purpose of moisture absorption layer of the present invention.Moisture absorption layer among the present invention can cut into arbitrary shape according to actual needs, can be used as the moisture absorption layer in the sanitary absorbent article, as be used for diaper that breast pad, baby or patient that sanitary towel, sanitary pad, anemia of pregnant woman need use during age of sucking use etc., and, the layer structure and the number of plies in the moisture absorption layer are adjusted according to concrete needs.
Though the present invention elaborates it by the specific embodiment; but; the any form that does not exceed the claim protection domain that those skilled in the art should be understood that on this basis to be made and the variation of details all belong to the protection domain of claim of the present invention.
Claims (10)
1. fibrilia hygroscopic layer, comprise that two superimposed is placed moisture absorption sheet (1) at least, it is characterized in that: comprise the mixing moisture absorption sheet (11) that contains flaxen fiber of smashing and the oleo stock paper of smashing in the described moisture absorption sheet (1), and the oleo stock paper moisture absorption sheet (12) that only contains the oleo stock paper of smashing, the weight percentage of flaxen fiber is 10-90wt% described in the wherein said mixing moisture absorption sheet (11).
2. according to the described fibrilia hygroscopic layer of claim 1, it is characterized in that: the content of described flaxen fiber in described mixing moisture absorption sheet (11) is 30-50wt%.
3. according to the described fibrilia hygroscopic layer of claim 1, it is characterized in that: the flaxen fiber average length is 0.5-20mm in the described mixing moisture absorption sheet (11).
4. according to the described fibrilia hygroscopic layer of claim 3, it is characterized in that: the flaxen fiber average length is 1-5mm in the described mixing moisture absorption sheet (11).
5. according to any described fibrilia hygroscopic layer in the claim 1 to 4, it is characterized in that: described moisture absorption sheet (1) surface forming has the drain lines.
6. according to the described fibrilia hygroscopic layer of claim 5, it is characterized in that: with described drain lines corresponding section, the fixing applying between described multilamellar moisture absorption sheet (1).
7. according to any described fibrilia hygroscopic layer in the claim 1 to 4, it is characterized in that: the upside of the described moisture absorption sheet of one deck (1) and downside are provided with one of at least super absorbent resin layer (2) at least.
8. according to any described fibrilia hygroscopic layer in the claim 1 to 4, it is characterized in that: described mixing moisture absorption sheet (11) is alternately placed with described oleo stock paper moisture absorption sheet (12).
9. according to any described fibrilia hygroscopic layer in the claim 1 to 4, it is characterized in that: described flaxen fiber is one or more in hemp, flax fiber, tossa, the ramee.
10. according to any described fibrilia hygroscopic layer in the claim 1 to 4, it is characterized in that: described oleo stock paper is rag paper and/or wood pulp paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101472470A CN101347371A (en) | 2008-08-25 | 2008-08-25 | Fibrilia hygroscopic layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101472470A CN101347371A (en) | 2008-08-25 | 2008-08-25 | Fibrilia hygroscopic layer |
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| Publication Number | Publication Date |
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| CN101347371A true CN101347371A (en) | 2009-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008101472470A Pending CN101347371A (en) | 2008-08-25 | 2008-08-25 | Fibrilia hygroscopic layer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102961774A (en) * | 2012-11-21 | 2013-03-13 | 河南舒莱卫生用品有限公司 | Hemp stem viscose fiber sanitary towel and preparation method thereof |
-
2008
- 2008-08-25 CN CNA2008101472470A patent/CN101347371A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102961774A (en) * | 2012-11-21 | 2013-03-13 | 河南舒莱卫生用品有限公司 | Hemp stem viscose fiber sanitary towel and preparation method thereof |
| CN102961774B (en) * | 2012-11-21 | 2016-01-20 | 河南舒莱卫生用品有限公司 | Hemp stem viscose fiber sanitary towel and preparation method thereof |
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Open date: 20090121 |