CN1354301A - Synthetic internal sole leather and its production method - Google Patents
Synthetic internal sole leather and its production method Download PDFInfo
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- CN1354301A CN1354301A CN 01139164 CN01139164A CN1354301A CN 1354301 A CN1354301 A CN 1354301A CN 01139164 CN01139164 CN 01139164 CN 01139164 A CN01139164 A CN 01139164A CN 1354301 A CN1354301 A CN 1354301A
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Abstract
The present invention relates to the field of artificial leather technology, and is aimed at providing an artificial synthetic leather which possesses good flexural strength, hardness, abrasion-resistance, moisture-proofing property and a certain air perviousness and can be used for making internal sole or insole of various shoes and its production method. Said invention synthetic leather is formed from synthetic fibre base material and resin glue impregnated and solidified in the base material, in which the synthetic base material is a nonwoven punched fabric made of polyester short fibre. The resin glue is made up by mixing benzenepropanoic emulsion, natural emulsion and calcium carbonate.
Description
Technical field
The present invention relates to the technical field of artificial leather, be specially a kind of synthetic internal sole leather that is mainly used in the interior end (middle lining) that makes all kinds of footwear, and the manufacture method of this synthetic internal sole leather.
Background technology
Aspect the making of leather shoes, sneakers and sport footwear etc., comfortable for the wearer, also in order to reduce the production cost of whole footwear, sole generally is made of multilayer, the end or middle lining in the intermediate layer often is referred to as, its material is usually required that certain intensity and hardness are arranged, have certain gas permeability and meet the water distortion that keeps the shape.The used material of leather shoe industry mainly is at present: one for nonwoven fabric soaks the substitute material that the polyvinyl acetate latex mixing is made, its moderate cost, but poor rigidity chance water is yielding, airtight, and the phenomenon that is clamminess can appear in the use in summer; Two for using more general elasticity paper board material, and its permeability is better, but flexural strength is low, the frangibility fragmentation, and protection against the tide and poor water resistance, and also it produces and needs a large amount of timber that use, and is unfavorable for protecting valuable forest resources.
Summary of the invention
The object of the present invention is to provide a kind of both had good flexural strength, hardness, ABRASION RESISTANCE and humidity resistance, have the synthetic internal sole leather of certain air permeability energy again.
Another object of the present invention is to provide a kind of method of making described synthetic internal sole leather.
First purpose of the present invention is achieved in that this kind synthetic internal sole leather, is made up of synthetic fiber base material and dipping and the resin adhesive liquid that is solidificated in the base material, it is characterized in that,
(1) the nonwoven eedle-punched non-wovens of described synthetic fiber base material for making by polyester staple fiber;
(2) described resin adhesive liquid is formed by weight to be mixed for 20～50 parts by 100 parts of benzene emulsions, 4～8 parts of natural emulsions and calcium carbonate and is formed.
Also contain an amount of polyvinyl alcohol and/or anti-blushing agent in the described resin adhesive liquid.
The weight of all the other each components consists of outside dewatering in the described benzene emulsion:
(A) styrene 75.5～89.5%
(B) acrylate 6～20%
(C) acrylic acid 2%
(D) lauryl sodium sulfate 1.5%
(E)OP-10???????????????????????0.5％
(F) ammonium persulfate 0.5%
Described acrylate is the mixture of butyl acrylate, ethyl acrylate or butyl acrylate and ethyl acrylate, and described (F) can also be potassium peroxydisulfate.
The weight ratio of described synthetic fiber base material and described resin adhesive liquid is 1: 5～1: 6.5.
The specification of described polyester staple fiber is 2.5D～5.0D.。
Another object of the present invention is achieved in that this makes the method for described synthetic internal sole leather, it is characterized in that may further comprise the steps:
(a) polyester staple fiber is made the nonwoven eedle-punched non-wovens;
(b) by formulated benzene emulsion in the claim 3 or 4;
(c) with above-mentioned benzene emulsion, polyvinyl alcohol, natural emulsion, anti-blushing agent and calcium carbonate in the resin glue that is mixed of ratio in claim 1 or 2;
(d) by padder with the even dipping of resin adhesive liquid for preparing to the nonwoven eedle-punched non-wovens that makes;
(e) will flood good nonwoven eedle-punched non-wovens dries under 100 ℃～300 ℃ conditions;
(f) it is smooth and tailor the slabbing product by the pressing under 100 ℃～120 ℃ conditions of roller hot-rolling mill to dry good nonwoven eedle-punched non-wovens through the resin adhesive liquid dipping.
The preparation steps of benzene emulsion is as follows in the described step (b):
(I) under the normal temperature, in accounting for prescription, add acrylate and acrylic acid, the styrene of 90% consumption and the lauryl sodium sulfate of 2/3rds consumptions of whole consumptions in half the water of total water amount, stir that to make pre-emulsion after 2 hours standby;
(II) under the normal temperature, in the water of surplus, add remaining lauryl sodium sulfate and styrene, stirring and emulsifying is warming up to 45 ℃ after half an hour, the initator (OP-10 and ammonium persulfate/potassium peroxydisulfate) that adds 1/4th consumptions then, be warming up to 76 ℃～80 ℃ when stirring, reacted 0.5～1 hour;
(III) wait to reflux after basic the disappearance, in 3 hours, the initator of above-mentioned pre-emulsion and water-soluble remainder is dropwised, be incubated 2 hours again after dropwising, be cooled to 40 ℃ then;
(IV) regulate pH value to 7～8 of emulsion with alkali lye.
The preparation steps of benzene emulsion can also be as follows in the described step (b):
(I) under the normal temperature, all add the styrene of 10% consumption, the initator (OP-10 and ammonium persulfate/potassium peroxydisulfate) of 1/4th consumptions and the lauryl sodium sulfate of whole consumptions in the water of consumption, stir half an hour;
(II) be warming up to 76 ℃～80 ℃, in 3～4 hours, slowly be added dropwise to the styrene and the initator of the acrylate of whole consumptions and acrylic acid, surplus, be incubated 2 hours then, be cooled to 40 ℃ again;
(III) regulate pH value to 7～8 of emulsion with alkali lye.
The purpose that adds polyvinyl alcohol in the resin adhesive liquid of the present invention is tackify, to keep the stability of glue system, under the situation that does not add polyvinyl alcohol, adopts glue to impose mechanical agitation before use and forces the method for dispersion also can reach same effect; The adding of anti-blushing agent is in order to make product can be applicable to the area that has a humid climate better.
In the polystyrene because the existence of a large amount of rigidity benzene ring structure unit, sterically hindered big, the motion of segment is restricted, and matter is hard and flexural strength is undesirable, and the segment of acrylate polymer is submissiveer, and the copolymer of the two proper proportion can good advantage in conjunction with both.Butyl acrylate and ethyl acrylate are comparatively speaking, flexible aliphatic chain is longer among the former, thereby can more effectively improve the warp resistance performance of copolymerization system, and performance in actual applications, its difference just is that the former wants high the latter's amount ratio in order to make system reach identical flexural strength.
Compared with prior art, the invention has the advantages that this synthetic internal sole leather had both had good flexural strength, hardness, ABRASION RESISTANCE and humidity resistance, have the certain air permeability energy again and do not waste the limited forest reserves; Manufacturing approach craft is simple and be easy to control.
The specific embodiment
Below in conjunction with specific embodiment the present invention is described in further detail.
Embodiment one
The making of synthetic internal sole leather base material: adopting the polyester staple fiber of 2.5～5.0D is raw material, special equipment with nonwoven production reticulates staple card through carding process, be paved into the web of certain thickness, weight, re-use special-purpose acupuncture apparatus and make the web fiber because acupuncture moves up and down and drives fiber and interweave up and down through about 3～5 continuous needle, thereby make nonwoven eedle-punched non-wovens, offset whole and make the non-woven fabrics base material of synthetic internal sole leather to scald through 80 ℃～120 ℃ hot rolling pair rollers again with certain needling density, TENSILE STRENGTH and thickness.
The making of benzene emulsion: proportioning raw materials (weight of all the other each components is formed outside dewatering) is as follows,
| Material name | Content |
| Styrene | ????83.5％ |
| Butyl acrylate | ????12.0％ |
| Acrylic acid | ????2.0％ |
| Lauryl sodium sulfate | ????1.5％ |
| ????OP-10 | ????0.5％ |
| Ammonium persulfate | ????0.5％ |
The content of water is 40% of benzene emulsion gross weight.
Under the normal temperature, in accounting for prescription, add acrylate and acrylic acid, the styrene of 90% consumption and the lauryl sodium sulfate of 2/3rds consumptions of whole consumptions in half the water of total water amount, stir that to make pre-emulsion after 2 hours standby;
Under the normal temperature, in the water of surplus, add remaining lauryl sodium sulfate and styrene, stirring and emulsifying is warming up to 45 ℃ after half an hour, add the OP-10 of 1/4th consumptions and the ammonium persulfate/potassium peroxydisulfate of 1/4th consumptions then, be warming up to 76 ℃～80 ℃ when stirring, reacted 0.5～1 hour;
Wait to reflux after basic the disappearance, in 3 hours, the initator (OP-10 and ammonium persulfate/potassium peroxydisulfate) of above-mentioned pre-emulsion and water-soluble remainder dropwised, dropwised follow-up continuation of insurance warm 2 hours, be cooled to 40 ℃ then:
Regulate pH value to 7～8 of emulsion with alkali lye.
Resin adhesive liquid is made: get 40 parts in 100 parts of benzene emulsions, the calcium carbonate, the mass concentration that have made and be 10% 3 parts of 15 parts of polyvinyl alcohol, anti-blushing agents and natural emulsion 6 parts (all by weight) stirring and evenly mixing according to a conventional method.
Evenly dipping is to Manufactured nonwoven eedle-punched non-wovens by padder with Manufactured resin adhesive liquid, and the immersion amount is 6 times (weight ratios) of nonwoven eedle-punched non-wovens.By the tunnel type drying tunnel it is dried then, make resin solidification simultaneously, the temperature of drying tunnel is controlled to be 150 ℃～200 ℃, and oven dry also can be adopted cylinder drying cylinder (100 ℃～300 ℃), but adopts the tunnel type drying tunnel in the present embodiment.
The product of baking and curing is smooth by roller hot-rolling mill (100 ℃～120 ℃ of temperature) hot pressure at last, tailors the slabbing product again.It is the various different sizes of 1.0mm～3.0mm that product can be made into thickness according to different demands.
The The performance test results of product is as follows:
Test specimens: 500mm * 500mm * 2.3mm
Probe temperature: 23 ℃
| Sequence number | The mensuration project | Unit | Standard | Measured data | |
| ? ??1 | Tensile load | ? ????N | With reference to GB 8948-94 | Warp-wise | ????719 |
| Broadwise | ????652 | ||||
| ??2 | Hardness | Shao Er A | With reference to GB/T531-92 | ??????????????93 | |
| ??3 | Density | ??g/cm 3 | With reference to GB 4496-84 | ??????????????0.63 | |
| ??4 | Water imbibition | With reference to GB 1034-86 | ??????????????69 | ||
| ? ??5 | Footwear are subdued index with fiberboard | ? ????- | With reference to GB/T1472-92 | Warp-wise | ??＞3.0 |
| Broadwise | ??＞3.0 | ||||
Claims (9)
1, a kind of synthetic internal sole leather is made up of synthetic fiber base material and dipping and the resin adhesive liquid that is solidificated in the base material, it is characterized in that,
(1) the nonwoven eedle-punched non-wovens of described synthetic fiber base material for making by polyester staple fiber;
(2) described resin adhesive liquid is formed by weight to be mixed for 20～50 parts by 100 parts of benzene emulsions, 4～8 parts of natural emulsions and calcium carbonate and is formed.
2, synthetic internal sole leather as claimed in claim 1 is characterized in that, also contains an amount of polyvinyl alcohol and/or anti-blushing agent in the described resin adhesive liquid.
3, synthetic internal sole leather as claimed in claim 1 is characterized in that, the weight of all the other each components consists of outside dewatering in the described benzene emulsion:
(A) styrene 75.5～89.5%
(B) acrylate 6～20%
(C) acrylic acid 2%
(D) lauryl sodium sulfate 1.5%
(E)OP-10??????????????????????0.5％
(F) ammonium persulfate 0.5%
4, synthetic internal sole leather as claimed in claim 3 is characterized in that, described acrylate is the mixture of butyl acrylate, ethyl acrylate or butyl acrylate and ethyl acrylate, and described (F) can also be potassium peroxydisulfate.
5, synthetic internal sole leather as claimed in claim 1 or 2 is characterized in that, the weight ratio of described synthetic fiber base material and described resin adhesive liquid is 1: 5～1: 6.5.
6, synthetic internal sole leather as claimed in claim 1 or 2 is characterized in that, the specification of described polyester staple fiber is 2.5D～5.0D.
7, a kind of method of making described synthetic internal sole leather is characterized in that may further comprise the steps:
(a) polyester staple fiber is made the nonwoven eedle-punched non-wovens;
(b) by formulated benzene emulsion in the claim 3 or 4;
(c) with above-mentioned benzene emulsion, polyvinyl alcohol, natural emulsion, anti-blushing agent and calcium carbonate in the resin glue that is mixed of ratio in claim 1 or 2;
(d) by padder with the even dipping of resin adhesive liquid for preparing to the nonwoven eedle-punched non-wovens that makes;
(e) will flood good nonwoven eedle-punched non-wovens dries under 100 ℃～300 ℃ conditions;
(f) it is smooth and tailor the slabbing product by the pressing under 100 ℃～120 ℃ conditions of roller letter hot-rolling mill to dry good nonwoven eedle-punched non-wovens through the resin adhesive liquid dipping.
8, method as claimed in claim 7 is characterized in that, the preparation steps of benzene emulsion is as follows in the described step (b):
(I) under the normal temperature, in accounting for prescription, add acrylate and acrylic acid, the styrene of 90% consumption and the lauryl sodium sulfate of 2/3rds consumptions of the whole consumptions of prescription in half the water of total water amount, stir that to make pre-emulsion after 2 hours standby;
(II) under the normal temperature, the lauryl sodium sulfate and the styrene that in the water of surplus, add the residue consumption, stirring and emulsifying is warming up to 45 ℃ after half an hour, add the OP-10 of 1/4th consumptions and the ammonium persulfate/potassium peroxydisulfate of 1/4th consumptions then, be warming up to 76 ℃～80 ℃ when stirring, reacted 0.5～1 hour;
(III) wait to reflux after basic the disappearance, in 3 hours, the OP-10 and the ammonium persulfate/potassium peroxydisulfate of above-mentioned pre-emulsion and water-soluble surplus are dropwised, be incubated 2 hours again after dropwising, be cooled to 40 ℃ then;
(IV) regulate pH value to 7～8 of emulsion with alkali lye.
9, method as claimed in claim 7 is characterized in that, the preparation steps of benzene emulsion is as follows in the described step (b):
(I) under the normal temperature, in the water of whole consumptions, add the styrene of 10% consumption, the OP-10 of 1/4th consumptions, the ammonium persulfate/potassium peroxydisulfate of 1/4th consumptions and the lauryl sodium sulfate of whole consumptions, stir half an hour;
(II) be warming up to 76 ℃～80 ℃, slowly be added dropwise to the acrylate and the acrylic acid of whole consumptions in 3～4 hours, the ammonium persulfate/potassium peroxydisulfate of the styrene of surplus, the OP-10 of surplus and surplus is incubated 2 hours then, is cooled to 40 ℃ again;
(III) regulate pH value to 7～8 of emulsion with alkali lye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011391642A CN1147642C (en) | 2001-12-21 | 2001-12-21 | Synthetic internal sole leather and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011391642A CN1147642C (en) | 2001-12-21 | 2001-12-21 | Synthetic internal sole leather and its production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1354301A true CN1354301A (en) | 2002-06-19 |
| CN1147642C CN1147642C (en) | 2004-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011391642A Expired - Fee Related CN1147642C (en) | 2001-12-21 | 2001-12-21 | Synthetic internal sole leather and its production method |
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| Country | Link |
|---|---|
| CN (1) | CN1147642C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041687A (en) * | 2010-11-01 | 2011-05-04 | 张瑜 | Waterproof ventilated synthetic leather and preparation method thereof |
| CN105401449A (en) * | 2015-12-09 | 2016-03-16 | 杭州锴越新材料有限公司 | Air permeable and ion rich medium temperature hot melt leather |
| CN105506988A (en) * | 2015-12-09 | 2016-04-20 | 杭州锴越新材料有限公司 | Preparation method of high-breathable fiber chemical fiber board rich in negative ions |
-
2001
- 2001-12-21 CN CNB011391642A patent/CN1147642C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041687A (en) * | 2010-11-01 | 2011-05-04 | 张瑜 | Waterproof ventilated synthetic leather and preparation method thereof |
| CN105401449A (en) * | 2015-12-09 | 2016-03-16 | 杭州锴越新材料有限公司 | Air permeable and ion rich medium temperature hot melt leather |
| CN105506988A (en) * | 2015-12-09 | 2016-04-20 | 杭州锴越新材料有限公司 | Preparation method of high-breathable fiber chemical fiber board rich in negative ions |
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| Publication number | Publication date |
|---|---|
| CN1147642C (en) | 2004-04-28 |
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