CN103614111A - Urine wetting coloring hot melt adhesive for paper diaper - Google Patents
Urine wetting coloring hot melt adhesive for paper diaper Download PDFInfo
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- CN103614111A CN103614111A CN201310469895.9A CN201310469895A CN103614111A CN 103614111 A CN103614111 A CN 103614111A CN 201310469895 A CN201310469895 A CN 201310469895A CN 103614111 A CN103614111 A CN 103614111A
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Abstract
The present invention provides a urine wetting coloring hot melt adhesive for paper diaper. The urine wetting coloring hot melt adhesive is prepared from the following raw materials, by mass: 10-30 parts of a styrene thermoplastic elastomer, 20-60 parts of an acrylic acid terpolymer, 20-60 parts of a tackifying resin, 5-35 parts of a softener, 0.1-30 parts of a surfactant, 0.1-3 parts of an antioxidant, and 0.1-1 part of a humidity indicator. The urine wetting coloring hot melt adhesive has characteristics of low melt viscosity, contact angle of less than 40 DEG and good hydrophilicity, is suitable for low temperature coating, has characteristics of rapid color change, bright color and high strength after contacting water, and can be adopted as the urine wetting coloring hot melt adhesive of disposable hygiene products.
Description
(1) technical field
The present invention relates to a kind of hydrophilic hot melt adhesive, the hot melt adhesive that particularly urine can develop the color after wetting, belongs to polymer gluing agent field.
(2) background technology
Hot melt adhesive due to its containing solvent, nuisanceless, curing speed is fast, the bonding feature such as in extensive range, be used widely defending material, medical treatment, package packing supplies field.The hot melt adhesive that wherein styrene block copolymer is matrix because its force of cohesion is strong, melting viscosity is moderate, look shallow, the advantage such as low smelly, good stability is widely used in the middle of the disposable sanitary articles such as sanitary towel, protection pad, paper diaper.
Urine wet development hot melt adhesive is a kind of hot melt adhesive of meeting variable color when running into the liquid such as urine, by the variation direct reaction urine situation of color, thereby make user just can know whether by range estimation disposable sanitary articles such as need to changing diaper, paper diaper, and do not need to touch to judge through receiving and distributing.As disclosed a kind of latex with PH developer in US Patent No. 4231370, main component is styrene/acrylic-2-ethylhexyl multipolymer, ethylene/vinyl acetate copolymer or polyvinyl acetate (PVA).In order to obtain suitable pH value, the inside has also added the damping fluids such as phosphoric acid.But adding of phosphoric acid etc. is unfavorable for HUMAN HEALTH having potential safety hazard.
A kind of hot melt adhesive of colour developing is disclosed in patent US5066711, main component is Kollidone 90F or vinyl pyrrolidone/vinyl acetate copolymer or ethylene/acrylic acid copolymer, the dyestuff that has wherein also added the acidic substance such as lipid acid and met wet variable color, but this kind of hot melt adhesive poor heat stability, after heating, meeting Partial digestion, shows as carbonization, skinning, colour-darkening; And the consistency of each component is poor, easily there is situation about being separated; In addition, on market, another shortcoming of existing procucts is exactly that colour intensity is little, the base material that only has coating be transparent could the variation to color in verso view, if base material is translucent or opaque words, be difficult to observe the variation of color.
The defect of comprehensive above product, invents that a kind of preparation technology is simple, consistency good, thermostability and environmental stability is good, meet variable color is fast and colour intensity is large after wet wetting ability urinates wet development hot melt adhesive and have very large practicality.
(3) summary of the invention
The object of the present invention is to provide a kind of preparation technology wetting ability simple and that various aspects of performance is good to urinate wet development hot melt adhesive.
The technical solution used in the present invention is:
For a urine wet development hot melt adhesive for paper diaper, by the raw material that quality proportioning is following, made:
Described styrene analog thermoplastic elastomer is A-B-A triblock copolymer, A-B Synthetic rubber, isoprene-styrene, hydrogenated, block, diblock, star block copolymer or their mixture, above-mentioned thermoplastic elastic body A represents polystyrene, B represents polyhutadiene or polyisoprene, or the styrenic block copolymer of hydrogenation.Specifically comprise SBS, SEBS, SIS, SEPS, SIBS, SEEPS etc.; The melting index of these multipolymers is preferably at 6～15g/10min, wherein, the weight percent preferred amounts of polystyrene block is 15%～25%, melting index is too low, representation polymer molecular weight is excessive, prepared hot melt adhesive melting viscosity is too large, not only needs to improve applying glue temperature but also the mobility on base material and wettability bad; Melting index is too high, represents that molecular weight is too small, can affect hot melt adhesive cohesive strength.Therefore, except selecting suitable triblock copolymer, can also select the polymer combination of triblock copolymer and di-block copolymer or hub-and-spoke configuration to use.
Described acrylic acid terpolymer is the thermoplastic resin that vinylformic acid and other unsaturated compound copolymerization form, other unsaturated compounds comprise ethene, vinylbenzene, divinyl or methacrylic ester or esters of acrylic acid, wherein, esters of acrylic acid comprises methyl acrylate, ethyl propenoate, butyl acrylate etc., in acrylic acid terpolymer, acrylic acid mass percent is 20%～40%, and the melting index of this multipolymer is greater than 5g/10min.
Described tackifying resin is the conventional tackifying resin in this area, is selected from terpenes and hydrogenated derivatives thereof, the rosin of rosin and modification and hydrogenated derivatives thereof, and their mixture; Preferably the ring and ball softening point of tackifying resin is at 90 ℃～110 ℃, and Gardner's colorimetric will wherein be take water white transparency as optimum lower than No. 5, and acid number is greater than 130mg KOH/g.
Described tenderizer is petroleum line softener (as naphthenic oil, white oil, paraffin wet goods) or fatty oil softener (acyclic oligo thing as suitable in some); Tenderizer Main Function is the tack that increases hot melt adhesive, reduces melt viscosity.The aromatic hydrocarbon content of selected tenderizer will be lower than 30%, preferably lower than 10%.
Described tensio-active agent is fatty acid ester or Polyoxyethylene Ether Nonionic Surfactant, and its hydrophile-lipophile balance value (HLB) is less than or equal to 15; Wherein, tensio-active agent also plays certain plastification.
Described oxidation inhibitor is phenols or phosphite ester kind antioxidant, and object is to improve the thermostability of hot melt adhesive.
Described humidity indicator is the pH indicator (as tetrabromophenol sulfonphthalein, tetrabromo-mcresolsulfonphthalein) of color range between 2～8 or the dyestuff of the wet variable color of chance.
It is one of following that described styrene analog thermoplastic elastomer is preferably: polystyrene-poly isoprene-polystyrene (SIS), polystyrene-poly divinyl-polystyrene (SBS), polystyrene-poly ethene-polybutene-polystyrene (SEBS).
Described acrylic acid terpolymer is preferably butadiene-styrene-acrylic terpolymer, or ethylene-methyl acrylate-acrylic terpolymer.
It is one of following that described tackifying resin is preferably: terpine resin, hydrogenated terpene resin, rosin ester, hydrogenated wood rosin glycerol ester.
Described tenderizer is preferably naphthenic oil or mineral oil.
Described tensio-active agent is preferably one of following or two or more mixture wherein: glyceryl monostearate, bi-tristearin, polyethylene glycol mono stearate, poly-two pairs of stearates of second, polyethylene glycol (PEG) oleate, polyethylene glycol laurate, sorbitol anhydride laurate, polyoxyethylene nonylphenol ether, polyoxyethylene octylphenol ether.
It is one of following that described oxidation inhibitor is preferably: 2, and 2 '-methylene-bis (4-methyl-6-tert-butylphenol), four-[β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, 4,4 '-methylene-bis (2,6 di t butyl phenol), β-(3,5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid, three (2,4-di-tert-butyl-phenyl) phosphorous acid ester, two (2,4-di-tert-butyl-phenyl) pentaerythritol diphosphites.
Described humidity indicator is preferably the mixture of tetrabromophenol sulfonphthalein or tetrabromophenol sulfonphthalein and tetrabromo-mcresolsulfonphthalein.
Preferably, described urine wet development hot melt adhesive raw materials quality is composed as follows:
It is as follows that the present invention urinates wet development hot melt adhesive preparation method: in being preheated to the reactor of 120 ℃ of left and right, the tenderizer that adds accurate-metering, tensio-active agent, oxidation inhibitor, after stirring, add tackifying resin, continue stirring until the complete melting of tackifying resin, the thermoplastic elastomer and the acrylic acid terpolymer that add again accurate-metering, finally add humidity indicator, closed reactor, vacuumize while stirring, thermal oil is continued to be warming up to 160 ℃ of left and right simultaneously, high-speed stirring is to after the complete melting of each raw material and mixing, stop stirring, continue to vacuumize, discharging while hot after hot melt adhesive froth breaking, discharge port adds 200 orders and filters mesh screen, pour in the forming box that is lined with separate-type paper cooling.
Beneficial effect of the present invention is mainly reflected in: urine wet development hot melt adhesive provided by the invention, melt viscosity is low, be applicable to low temperature coated, contact angle is all less than 40 °, hydrophilicity is good, after chance water, variable color speed is fast, bright-colored, intensity is large, is suitable as very much the urine wet development hot melt adhesive of disposable sanitary articles.
(4) embodiment
Below in conjunction with specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in this:
Embodiment 1～5:
In being preheated to the reactor of 120 ℃ of left and right, the tenderizer that adds accurate-metering, tensio-active agent, oxidation inhibitor, after stirring, add tackifying resin, continue stirring until the complete melting of tackifying resin, the thermoplastic elastomer and the acrylic acid terpolymer that add again accurate-metering, finally add humidity indicator, closed reactor, vacuumize while stirring, thermal oil is continued to be warming up to 160 ℃ of left and right simultaneously, high-speed stirring is to after the complete melting of each raw material and mixing, stop stirring, continue to vacuumize, discharging while hot after hot melt adhesive froth breaking, discharge port adds 200 orders and filters mesh screen, pour in the forming box that is lined with separate-type paper cooling.
Each embodiment raw material forms as shown in table 1.
Table 1
In above-mentioned raw materials:
SIS rises purchased from U.S. section, and its melting index is 12g/10min, and wherein, the weight percent of polystyrene block is 29%;
Ethylene-methyl acrylate-acrylic terpolymer is purchased from Exxon Mobil, and its melting index is 5g/10min, and wherein, acrylic acid weight percent is 25%;
Pentalyn is purchased from Wuzhou Richenglin Chemical Co., Ltd., Guangxi, and its ring and ball softening point is 100 ℃, and Gardner's colorimetric is No. 2, and acid number is 130mg KOH/g;
Naphthenic oil is purchased from Karamay, Xinjiang; Antioxidant 1010 is purchased from Nanjing Yangzi fine chemistry industry limited liability company; Glyceryl monostearate and polyethylene glycol laurate are purchased from Jiangsu Hai'an Petrochemical Plant.
Testing method:
Outward appearance: visual method detects.
Viscosity: adopt NDJ-5s numeral rotational viscosimeter to test at 130 ℃, unit is centipoise (cps).
Softening temperature: the mensuration regulation by GB/T15332 hot melt adhesive softening temperature is carried out.
180 ° of stripping strengths: mainly test the stripping strength between casting films and non-woven fabrics, adopting grammes per square metre in the present invention is 25g/m
2pE casting films, and grammes per square metre is 18g/m
2the third fine hot pressing non-woven fabrics.First by glue sample blade coating in PE casting films, coating thickness is controlled at 40～60 microns, width is controlled at 3～4cm, is coated with at least 2m of cloth length, fits with separate-type paper outward.The above-mentioned sample of getting ready and non-woven fabrics are positioned between the constant temperature sleeve that 23 ± 2 ℃ of temperature, relative humidity are 50%～60% and are processed 30 minutes.Get the about 25cm of the above-mentioned sample of making and be placed on a glass plate, tear separate-type paper off, immediately sample and non-woven fabrics are carried out bondingly, adhesion width is greater than 3cm, and bonding length is greater than 20cm.Then standard pressure roller (2000g ± 50g) is carried out in standard cotton cloth to rollback once (hand is not exerted pressure).After processing 30 minutes between the constant temperature sleeve that is then 50%～60% in 23 ± 2 ℃ of temperature, relative humidity, with electronic tensile machine, with the speed of 300mm/min, casting films and non-woven fabrics are peeled away with 180 ° of angles.
Contact angle: by glue sample blade coating in PE casting films, coating thickness is controlled at 40～50 microns, width is greater than 3cm, between the constant temperature sleeve that then sample to be positioned over to 23 ± 2 ℃ of temperature, relative humidity be 50%～60%, processes after 30 minutes, tests its surface water contact angle.
Meet water variable color situation: sample making course is with the method for contact angle test, because urine is slightly acidic, pH value is approximately between 6.0～7.0, so adopting pure water tests, with dropper, drip pure water on glue sample, record the time of colour-change and the intensity of color, whether the intensity of color is mainly high-visible from the verso view color of casting films.
The performance of each embodiment is in Table 2.
Table 2
According to the test result of embodiment 1～5, hot melt adhesive of the present invention, melt viscosity is low, and applicable low temperature coated, contact angle is all less than 40 °, and hydrophilicity is good, and after chance water, variable color speed is fast, bright-colored, intensity is large.Be suitable as very much the urine wet development hot melt adhesive of disposable sanitary articles.
Claims (9)
1. for a urine wet development hot melt adhesive for paper diaper, by the raw material that quality proportioning is following, made:
Described tenderizer is petroleum line softener or fatty oil softener;
Described tensio-active agent is fatty acid ester or Polyoxyethylene Ether Nonionic Surfactant;
Described oxidation inhibitor is phenols or phosphite ester kind antioxidant;
Described humidity indicator is the pH indicator of color range between 2～8 or the dyestuff of the wet variable color of chance.
2. urine wet development hot melt adhesive as claimed in claim 1, it is characterized in that described styrene analog thermoplastic elastomer is one of following: polystyrene-poly isoprene-polystyrene, polystyrene-poly divinyl-polystyrene, polystyrene-poly ethene-polybutene-polystyrene.
3. urine wet development hot melt adhesive as claimed in claim 1, is characterized in that described acrylic acid terpolymer is butadiene-styrene-acrylic terpolymer, or ethylene-methyl acrylate-acrylic terpolymer.
4. urine wet development hot melt adhesive as claimed in claim 1, is characterized in that described tackifying resin is one of following: terpine resin, hydrogenated terpene resin, rosin ester, hydrogenated wood rosin glycerol ester.
5. urine wet development hot melt adhesive as claimed in claim 1, is characterized in that described tenderizer is naphthenic oil or mineral oil.
6. urine wet development hot melt adhesive as claimed in claim 1, it is characterized in that described tensio-active agent is one of following or two or more mixture wherein: glyceryl monostearate, bi-tristearin, polyethylene glycol mono stearate, poly-two pairs of stearates of second, polyethylene glycol (PEG) oleate, polyethylene glycol laurate, sorbitol anhydride laurate, polyoxyethylene nonylphenol ether, polyoxyethylene octylphenol ether.
7. urine wet development hot melt adhesive as claimed in claim 1, it is characterized in that described oxidation inhibitor is one of following: 2,2 '-methylene-bis (4-methyl-6-tert-butylphenol), four-[β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, 4,4 '-methylene-bis (2,6-DI-tert-butylphenol compounds), the positive octadecanol ester of β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid, three (2,4-di-tert-butyl-phenyl) phosphorous acid ester, two (2,4-di-tert-butyl-phenyl) pentaerythritol diphosphites.
8. urine wet development hot melt adhesive as claimed in claim 1, is characterized in that described humidity indicator is the mixture of tetrabromophenol sulfonphthalein or tetrabromophenol sulfonphthalein and tetrabromo-mcresolsulfonphthalein.
9. the urine wet development hot melt adhesive as described in one of claim 1～8, is characterized in that its raw materials quality is composed as follows:
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104497467A (en) * | 2014-09-30 | 2015-04-08 | 衢州市柯城富星制胶厂 | Styryl composite material |
| CN105038655A (en) * | 2015-08-28 | 2015-11-11 | 泉州市嘉华卫生用品有限公司 | Hot-melt adhesive composition for paper diapers and preparation method thereof |
| CN106281150A (en) * | 2016-09-07 | 2017-01-04 | 李金平 | A kind of diaper hot melt adhesive |
| CN109432482A (en) * | 2019-01-10 | 2019-03-08 | 袁慧丽 | Honegsukle flower P.E is used to prepare the aobvious purposes of natural plants urine |
| CN109464694A (en) * | 2019-01-10 | 2019-03-15 | 袁慧丽 | A kind of natural plants urinate aobvious nursing materials and preparation method thereof |
| CN109536091A (en) * | 2018-11-20 | 2019-03-29 | 衢州市富星和宝黏胶工业有限公司 | A kind of urine present gum |
| CN112029477A (en) * | 2020-08-17 | 2020-12-04 | 广东聚胶粘合剂有限公司 | Diversion hot melt adhesive for disposable hygienic product and preparation method thereof |
| CN112898785A (en) * | 2021-01-22 | 2021-06-04 | 盛嘉伦橡塑(河源)有限公司 | Thermoplastic elastomer material and preparation method and application thereof |
| CN115820176A (en) * | 2022-10-24 | 2023-03-21 | 嘉好(太仓)新材料股份有限公司 | Diversion hot melt adhesive for disposable hygienic products and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104497467A (en) * | 2014-09-30 | 2015-04-08 | 衢州市柯城富星制胶厂 | Styryl composite material |
| CN105038655A (en) * | 2015-08-28 | 2015-11-11 | 泉州市嘉华卫生用品有限公司 | Hot-melt adhesive composition for paper diapers and preparation method thereof |
| CN106281150A (en) * | 2016-09-07 | 2017-01-04 | 李金平 | A kind of diaper hot melt adhesive |
| CN109536091A (en) * | 2018-11-20 | 2019-03-29 | 衢州市富星和宝黏胶工业有限公司 | A kind of urine present gum |
| CN109432482A (en) * | 2019-01-10 | 2019-03-08 | 袁慧丽 | Honegsukle flower P.E is used to prepare the aobvious purposes of natural plants urine |
| CN109464694A (en) * | 2019-01-10 | 2019-03-15 | 袁慧丽 | A kind of natural plants urinate aobvious nursing materials and preparation method thereof |
| CN112029477A (en) * | 2020-08-17 | 2020-12-04 | 广东聚胶粘合剂有限公司 | Diversion hot melt adhesive for disposable hygienic product and preparation method thereof |
| CN112029477B (en) * | 2020-08-17 | 2021-12-21 | 聚胶新材料股份有限公司 | Diversion hot melt adhesive for disposable hygienic product and preparation method thereof |
| CN112898785A (en) * | 2021-01-22 | 2021-06-04 | 盛嘉伦橡塑(河源)有限公司 | Thermoplastic elastomer material and preparation method and application thereof |
| CN115820176A (en) * | 2022-10-24 | 2023-03-21 | 嘉好(太仓)新材料股份有限公司 | Diversion hot melt adhesive for disposable hygienic products and preparation method thereof |
| CN115820176B (en) * | 2022-10-24 | 2024-04-12 | 嘉好(太仓)新材料股份有限公司 | Flow-guiding hot melt adhesive for disposable sanitary products and preparation method thereof |
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