CN103160228A - Structural adhesive composition for sanitary towels and preparation method thereof - Google Patents
Structural adhesive composition for sanitary towels and preparation method thereof Download PDFInfo
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- CN103160228A CN103160228A CN2013101140781A CN201310114078A CN103160228A CN 103160228 A CN103160228 A CN 103160228A CN 2013101140781 A CN2013101140781 A CN 2013101140781A CN 201310114078 A CN201310114078 A CN 201310114078A CN 103160228 A CN103160228 A CN 103160228A
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Abstract
The invention relates to a structural adhesive composition for sanitary towels, and belongs to the field of macromolecular adhesion agents. The composition is prepared by metallocene polyolefin with excellent adhesion strength, small odor and excellent thermal stability and ageing resistance to replace a conventional hot-melt pressure-sensitive structural adhesive, and is suitable for adhering polyethylene (PE) films, absorbent paper, fluff pulp and non-woven fabrics. The prepared composition is low in production equipment investment and simple in production technology; no harmful substances are emitted in a production process, and no other solvents are added into the composition, so that the composition belongs to an environment-friendly adhesive; in the aspect of customer use, the composition is simple in coating technology and low in equipment investment and can be generally produced by equipment of the hot-melt pressure-sensitive structural adhesive; and the composition has excellent adhesion and ageing performance and excellent stability and is not easily carbonized in a use process.
Description
Technical field
The present invention relates to a kind of sanitary towel structure glue composition, belong to the polymer binder field.
Background technology
In recent years, the needs due to high speed operation, rationally coating, eliminating solvent pollution problem have developed hot melt adhesive.The hot melt adhesive principal constituent adopts the polymkeric substance such as ethylene-vinyl acetate copolymer, polyolefine, styrene analog thermoplastic elastomer more, does not contain solvent, and is pollution-free.Construct under molten state, play bonding effect after cooling curing.Being of wide application of it can be used for defending material articles for use, bookbinding, packing, health care, timber and plastic working, the aspects such as shoemaking.
SANITARY NAPKIN CONSTRUCTION glue is mainly used in the bonding between PE film, thieving paper, Time of Fluff Slurry and non-woven fabrics, plays the effect of sanitary towel internal structure typing.The basic demand of structure glue is that bonding force is strong, preferably reaches wood destruction, and cohesive strength is stable, does not descend for a long time too much because depositing, open hour are long, can spiral spraying, many formulas coatings and blade coating, of light color, smell is little, Heat stability is good is difficult for charing, clean inclusion-free.In the market, mainly use styrene analog thermoplastic elastomer to be the hot-fusible pressure-sensitive adhesive of main body, as the structure glue of sanitary towel.Hot-fusible pressure-sensitive adhesive is compared with novel texture glue as structure glue, because smell is large, and poor heat stability, along with extending heating time viscosity changes greatly, easily charing produces impurity and stops up shower nozzle, affects operating efficiency, and ageing resistance is poor, and along with the prolongation of time, cohesive strength descends larger.Product of the present invention is a kind of new type hot-melt adhesive that is applied to sanitary towel, adopts metallocene-polyolefin, and bonding strength is excellent, smell is little, thermally-stabilised excellent with ageing resistance, replace traditional hot-melt pressure-sensitive adhesive type structure glue, be adapted to the bonding between PE film, thieving paper, Time of Fluff Slurry and non-woven fabrics.
Summary of the invention
The purpose of this invention is to provide a kind of sanitary towel novel texture glue, be used for solving the thermally-stabilised poor of current Hot-melt Pressure-sensitive Adhesive for Sanitary Napkins type structure glue, easily charing, the problem of ageing-resistant performance deficiency.
According to technical scheme provided by the invention, sanitary towel structure glue composition, formula rate is as follows by weight: main polymer 20-40 part, base oil 20-40 part, tackifying resin 30-45 part and oxidation inhibitor 0.3-1 part;
Described main polymer is the mixture of one or more materials in metallocene ethylene-octene copolymer, metallocene PE, metallocene polypropylene or metallocene polybutene;
Described base oil is the mixture of one or more materials in naphthenic oil, paraffin oil, white oil, vacuum pump oil;
Described tackifying resin is the mixture of one or more materials in petroleum resin, terpine resin, esterified rosin;
Described oxidation inhibitor is that 50% antioxidant 1010 and 50% irgasfos 168 mix by mass ratio.
Described sanitary towel structure glue composition, concrete steps are as follows by weight:
(1) reinforced: as to get base oil 20-40 part, oxidation inhibitor 0.3-1 part joins in the thermal oil reactor, begin heating, when material temperature rises to 120-140 ℃, add tackifying resin 30-45 part, control material temperature at 150-180 ℃, heating 10-30min, until tackifying resin melts fully, then investment subject polymkeric substance 20-40 part;
(2) melt compounding: closed reactor, vacuumize, reactor pressure is-0.08～-0.09MPa, keeping temperature is 150-180 ℃, reaction 40-60min, until main polymer melts fully, material is extracted out without obvious bubble, closes heating;
(3) discharging: adopt 200 purpose double-level-metal net filtrations after the discharging of step (2) gained feed liquid, through high temperature resistant silicone oil separate-type paper packaging final prod, can pack after cooling, obtain product sanitary towel structure glue composition.
Main polymer of the present invention adopts the metallocene ethylene-octene copolymer.The advantages such as the metallocene ethylene-octene copolymer has excellent thermostability, thermal viscosity and ageing resistance, and when also having hot melt, smell is little, and density is low.
For improving the clinging power of hot melt adhesive when the high temperature, improve tackiness agent to the wettability of PE film, thieving paper, Time of Fluff Slurry and non-woven fabrics, add tackifying resin, reduce hot melt viscosity, increase the perviousness of hot melt adhesive, improve adhesion strength; For improving the coating workability, further reduce colloid viscosity, increase wettability, adopt low-molecular-weight hydrogenation naphthenic oil as softening agent.The hydrogenation naphthenic oil is colourless transparent liquid, and is ageing-resistant, scale resistance is excellent.
For reducing the aging tendency of product in production, coating and follow-up use procedure, adopt compound antioxidant and thermo-stabilizer.Body series is through experimental verification, and when the compound antioxidant ratio was 1:1, thermostability and ageing resistance were best.
The present invention first adds base oil and oxidation inhibitor in making the hot melt adhesive process, be warming up to 120 ℃-180 ℃, then adds tackifying resin, after tackifying resin melts fully, then adds main polymer.Purpose is: viscosity first melts with tackifying resin than circlet alkane is oily, and then the investment subject polymkeric substance, can effectively reduce shear loading, reduces mixing time, reduces material aging, saves production cost.
Sanitary towel of the present invention novel texture glue has excellent cohesive strength and ageing resistance, and excellent heat stability is not easy charing, effectively reduces machine cleaning frequency, enhances productivity.
The existing hot-fusible pressure-sensitive adhesive structure glue in the present invention and market is more as shown in table 1;
Table 1 product of the present invention and existing hot-fusible pressure-sensitive adhesive structure glue Performance Ratio are
| Type | The hot-fusible pressure-sensitive adhesive structure glue | Hot melt adhesive of the present invention |
| Material of main part | The styrenic elastomerics | Metallocene-polyolefin |
| Cohesive strength | Generally | Excellent |
| Ageing resistance | Poor | Excellent |
| Thermostability | Poor | Well |
| Production efficiency | Generally | Improve more than 30% |
| The feature of environmental protection | Environmental protection | Environmental protection |
The present invention has following advantage: the products production equipment investment of the present invention's preparation is few, and production technique is simple; In production process, the unharmful substance discharging, do not use any solvent, belongs to environmentally friendly tackiness agent; Client's use, coating process is simple, and equipment investment is few, and hot-melt pressure-sensitive adhesive type structure glue Device-General; This product cementability and ageing-resistant performance are excellent, and thermally-stabilised excellence is not easy charing in use procedure.
Embodiment
In following embodiment: naphthenic oil can be buied by the Kelamayi oil, and tackifying resin can be buied by Taiwan and benefit chemistry, Nanjing Yangzi eastman chemical, and main polymer can be buied by DOW Chemical, and antioxidant 1010 and 168 can be buied by BASF.
Embodiment 1
(1) reinforced: as to get naphthenic oil 25kg, oxidation inhibitor 1kg joins in the thermal oil reactor, begins heating, when material temperature rises to 120 ℃, add petroleum resin 45kg, control material temperature at 150 ℃, heating 30min, until petroleum resin melt fully, then drop into metallocene ethylene-octene copolymer 30kg;
(2) melt compounding: closed reactor, vacuumize, reactor pressure is-0.09MPa, keeping temperature is 150 ℃, reaction 60min, until main polymer melts fully, material is extracted out without obvious bubble, closes heating;
(3) discharging: adopt 200 purpose double-level-metal net filtrations after the discharging of step (2) gained feed liquid, through high temperature resistant silicone oil separate-type paper packaging final prod, can pack after cooling, obtain product sanitary towel structure glue composition.
The product performance of preparation are as shown in table 2.
Embodiment 2
(1) reinforced: as to get paraffin oil 30kg, oxidation inhibitor 0.5kg and join in the thermal oil reactor, begin heating, when material temperature rises to 130 ℃, add tackifying resin terpine resin 40kg, control material temperature at 180 ℃, heating 10min, until tackifying resin melts fully, then investment subject polymkeric substance metallocene PE 35kg;
(2) melt compounding: closed reactor, vacuumize, reactor pressure is-0.09MPa, keeping temperature is 180 ℃, reaction 40min, until main polymer melts fully, material is extracted out without obvious bubble, closes heating;
(3) discharging: adopt 200 purpose double-level-metal net filtrations after the discharging of step (2) gained feed liquid, through high temperature resistant silicone oil separate-type paper packaging final prod, can pack after cooling, obtain product sanitary towel structure glue composition.
The product performance of preparation are as shown in table 2.
Embodiment 3
(1) reinforced: as to get base oil vacuum pump oil 40kg, oxidation inhibitor 0.3kg and join in the thermal oil reactor, begin heating, when material temperature rises to 130 ℃, add tackifying resin esterified rosin 20kg and petroleum resin 15kg, control material temperature at 160 ℃, heating 20min, until tackifying resin melts fully, then investment subject polymkeric substance metallocene polypropylene 40kg;
(2) melt compounding: closed reactor, vacuumize, reactor pressure is-0.085MPa, keeping temperature is 160 ℃, reaction 50min, until main polymer melts fully, material is extracted out without obvious bubble, closes heating;
(3) discharging: adopt 200 purpose double-level-metal net filtrations after the discharging of step (2) gained feed liquid, through high temperature resistant silicone oil separate-type paper packaging final prod, can pack after cooling, obtain product sanitary towel structure glue composition.
The product performance of preparation are as shown in table 2, and embodiment 3 properties are optimum.
The product performance of table 2 embodiment preparation
| Type | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Cohesive strength | Well | Well | Excellent |
| Ageing resistance | Excellent | Excellent | Excellent |
| Thermostability | Well | Well | Well |
| The coating workability | Well | Generally | Excellent |
Claims (2)
1. sanitary towel structure glue composition, is characterized in that formula rate is as follows by weight: main polymer 20-40 part, base oil 20-40 part, tackifying resin 30-45 part and oxidation inhibitor 0.3-1 part;
Described main polymer is the mixture of one or more materials in metallocene ethylene-octene copolymer, metallocene PE, metallocene polypropylene or metallocene polybutene;
Described base oil is the mixture of one or more materials in naphthenic oil, paraffin oil, white oil, vacuum pump oil;
Described tackifying resin is the mixture of one or more materials in petroleum resin, terpine resin, esterified rosin;
Described oxidation inhibitor is that 50% antioxidant 1010 and 50% irgasfos 168 mix by mass ratio.
2. sanitary towel structure glue composition as claimed in claim 1 is characterized in that concrete steps are as follows by weight:
(1) reinforced: as to get base oil 20-40 part, oxidation inhibitor 0.3-1 part joins in the thermal oil reactor, begin heating, when material temperature rises to 120-140 ℃, add tackifying resin 30-45 part, control material temperature at 150-180 ℃, heating 10-30min, until tackifying resin melts fully, then investment subject polymkeric substance 20-40 part;
(2) melt compounding: closed reactor, vacuumize, reactor pressure is-0.08 ~-0.09MPa, keeping temperature is 150-180 ℃, reaction 40-60min, until main polymer melts fully, material is extracted out without obvious bubble, closes heating;
(3) discharging: adopt 200 purpose double-level-metal net filtrations after the discharging of step (2) gained feed liquid, through high temperature resistant silicone oil separate-type paper packaging final prod, can pack after cooling, obtain product sanitary towel structure glue composition.
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| CN2013101140781A CN103160228A (en) | 2013-04-02 | 2013-04-02 | Structural adhesive composition for sanitary towels and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449465A (en) * | 2013-09-22 | 2015-03-25 | 杭州邦林热熔胶有限公司 | Hot melt adhesive for mattresses and sofas and preparation method thereof |
| CN106047240A (en) * | 2016-06-07 | 2016-10-26 | 东莞市成铭胶粘剂有限公司 | High-temperature-resistant hot melt adhesive based on application of air filter |
| CN106244049A (en) * | 2016-08-30 | 2016-12-21 | 华威粘结材料（上海）股份有限公司 | A kind of polyolefin joint sealing glue and preparation method thereof |
| CN106497454A (en) * | 2016-10-20 | 2017-03-15 | 广东能辉新材料科技有限公司 | Air cleaner polyolefin hot-melt |
| CN106832539A (en) * | 2016-12-08 | 2017-06-13 | 福建恒安集团有限公司 | A kind of disposable absorbent article |
| CN109735265A (en) * | 2019-01-17 | 2019-05-10 | 福建省昌德胶业科技有限公司 | A kind of high-temperature-resistance polyolefin hot fusible adhesive for package and preparation method thereof |
| CN110791231A (en) * | 2019-11-26 | 2020-02-14 | 正邦(广州)新材料有限公司 | Self-adhesive cold-seal hot melt adhesive and preparation method and application thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104449465A (en) * | 2013-09-22 | 2015-03-25 | 杭州邦林热熔胶有限公司 | Hot melt adhesive for mattresses and sofas and preparation method thereof |
| CN106047240A (en) * | 2016-06-07 | 2016-10-26 | 东莞市成铭胶粘剂有限公司 | High-temperature-resistant hot melt adhesive based on application of air filter |
| CN106244049A (en) * | 2016-08-30 | 2016-12-21 | 华威粘结材料（上海）股份有限公司 | A kind of polyolefin joint sealing glue and preparation method thereof |
| CN106497454A (en) * | 2016-10-20 | 2017-03-15 | 广东能辉新材料科技有限公司 | Air cleaner polyolefin hot-melt |
| CN106497454B (en) * | 2016-10-20 | 2019-02-15 | 广东能辉新材料科技有限公司 | Air filter polyolefin hot-melt |
| CN106832539A (en) * | 2016-12-08 | 2017-06-13 | 福建恒安集团有限公司 | A kind of disposable absorbent article |
| CN109735265A (en) * | 2019-01-17 | 2019-05-10 | 福建省昌德胶业科技有限公司 | A kind of high-temperature-resistance polyolefin hot fusible adhesive for package and preparation method thereof |
| CN110791231A (en) * | 2019-11-26 | 2020-02-14 | 正邦(广州)新材料有限公司 | Self-adhesive cold-seal hot melt adhesive and preparation method and application thereof |
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Application publication date: 20130619 |