CN103898736A - Anti-radiation finishing processing method for fabric - Google Patents
Anti-radiation finishing processing method for fabric Download PDFInfo
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- CN103898736A CN103898736A CN201410032272.XA CN201410032272A CN103898736A CN 103898736 A CN103898736 A CN 103898736A CN 201410032272 A CN201410032272 A CN 201410032272A CN 103898736 A CN103898736 A CN 103898736A
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Abstract
The invention provides an anti-radiation finishing processing method for a fabric. The anti-radiation finishing processing method is characterized in that a padding and baking process is used for attaching nano magnetic metal to the fabric, wherein each liter of a padding working solution contains following substances in mass: 30-60g/L of a nano metal wave absorbing agent and 40-60g/L of a macromolecular binding agent. Cloth produced by the anti-radiation finishing processing method avoids the defects of poor washing fastness, great gram weight, poor flexible comfort and the like; meanwhile, the fabric is used for absorbing electromagnetic waves and converting the electromagnetic waves to heat to release heat; the fabric is more superior than a fabric which reflects the electromagnetic waves; furthermore, the special macromolecular binding agent is used and a nano magnetic metal material is finished on the fabric by a special process to produce the fabric with soft hand feeling, good washing fastness and good anti-radiation effect; the method can be used for producing thin and light spring and summer anti-radiation fabrics.
Description
Technical field
The present invention relates to a kind of processing method of fabric, particularly relate to a kind of radiation resistant finish processing method of fabric.
Background technology
Along with the universal and development of electronic and electrical equipment, in people's life, may avoid hardly the radiation of electromagnetism.
Although market has the fabric clothing of some anti-electromagnetism, antistatic selling now, the raw material that these manufacturing enterprises adopt mostly are stainless steel fibre.First, stainless steel fibre is generally suitable for the exterior anti-electromagnetism garment industries such as winter dress, western-style clothes, jacket more.Secondly, because stainless steel fibre is as direct and consumer's skin contact, can damage consumer, after long-time use, can allow consumer's, particularly allergic constitution consumer suffer from certain disease.Therefore, this type of material definitely can not be used for the anti-electromagnetism field of underwear, summer dress ornament.
Especially it is worth mentioning that, pregnant woman is very responsive to electromagenetic wave radiation, is very necessary to pregnant woman's electromagnetic radiation resistant protection.And above-mentioned exposure suit is not obviously suitable for pregnant woman's and so on crowd.
What radiation-proof clothes for gravida was in the market maximum is metal fibre BLENDED FABRIC, although this series products has reasonable shielding property, but because metal fibre exists many limitations in processing and use, need to there is radiation-proof fabric of new generation to replace.
Summary of the invention
The present invention is intended to overcome the problems referred to above, by the radiation resistant finish processing technology of fabric involved in the present invention can obtain that a kind of technique is simple, taking is strong, shielding property and all good radiation protection products of durability.
The radiation resistant finish processing method of a kind of fabric provided by the invention, has such technical characterictic, adopts and pads baking, and nanometer magnetic metal is invested on fabric.
In above-mentioned processing method, the involved concrete technology step of padding baking is:
Step 1, pad process: two soak two rolls working solution;
Step 2, drying course: at the temperature of 85 ℃-95 ℃, baking 1-5 minute;
In the present invention, research discovery, in the time that bake out temperature is 90 ℃, when baking time is 3 minutes, best results.Stoving process under above-mentioned process conditions can also further play and be conducive to the inhomogeneity advantage of fabric processing effect.
Step 3, bake process: at the temperature of 130 ℃-145 ℃, bake 1-5 minute;
In the present invention, research finds, the time of baking is while being 2 minutes, best results.
In the present invention, only select above-mentioned good washing fastness and the feel of process conditions guarantee of padding baking.
In addition, the radiation resistant finish processing method of a kind of fabric provided by the invention, also has such technical characterictic, and every liter pads the material that working solution comprises following mass component:
Nano metal wave absorbing agent 30-60g/L;
Polymer binder 40-60g/L.
In the present invention, in the time that nano metal wave absorbing agent is padding content in working solution lower than 30g/L, cause the radiation-resistant poor effect of product; And in the time that nano metal wave absorbing agent is padding content in working solution higher than 60g/L, not only cause cost significantly to increase, and also cause the feel of fabric not good, have a strong impact on client's comfort.
In addition, in the present invention, in the time that polymer binder is padding content in working solution lower than 40g/L, cause the fastness to washing of fabric and fastness to decline, radio-opaque substance on it is easy to be eliminated or weaken in the process of washing or use, directly causes the radiation-proof effect of fabric not good; And in the time that polymer binder is padding content in working solution lower than 60g/L, cause the feel of fabric not good, have a strong impact on client's comfort.
In addition, the radiation resistant finish processing method of a kind of fabric provided by the invention, also has such technical characterictic, and above-mentioned nano metal wave absorbing agent is made up of nanometer magnetic metal particle.
Its concrete preparation method is:
Step 1, slaine is dissolved in the water;
Step 2, at the uniform velocity drip NaOH solution while stirring, to pH be 6-7, wherein the concentration of NaOH solution can be selected arbitrarily, preferred mass percent concentration is 10%-40%.
Step 3, filtration are removed after solids of sedimentation, bake drying;
Step 4, be made into nano particle with ultrasonic wave crusher;
In the present invention, above-mentioned slaine is selected from containing one or more the mixture in the salt compounds of magnetic metal; The mass ratio of slaine and water is 1-1.5:100.
In addition, in the present invention, slaine is preferably from molysite; More preferably, slaine is preferably from the mixture of divalent iron salt and trivalent iron salt.
In the time that slaine is selected from divalent iron salt and trivalent iron salt, the material that its best of breed is following mass percentage content:
FeCl
2 0.4-0.5%；
FeCl
3 1-1.1%；
Water surplus.
It is worthy of note, be that the electron scattering, impurity and the lattice that are caused by the thermal vibration of lattice electric field are that three kinds of effects of interaction between the defect electron scattering and electronics and the electronics that cause realize with the nano magnetic particle of this method manufacture to the absorption of electromagnetic wave energy.Therefore, having compared to fabrics in general radiation proof processing is very outstanding radiation-proof effect.More due to, it can just make fabric possess radiation-resistant effect by shirtsleeve operation technique, has obviously had and has lifted sufficient progress compared to traditional handicraft means.
In addition, the radiation resistant finish processing method of a kind of fabric provided by the invention, also has such technical characterictic, and above-mentioned polymer binder is polyurethane binding.
Be preferably the polyurethane binding that Hailin graduation work Co., Ltd produces.
In the present invention, the feature of having utilized polyurethane binding to contain carbamate groups (NHCOO-) or isocyanate group (NCO), in mechanism, in isocyanate groups in system and system or system react containing the material of active hydrogen outward, generate polyurethanyl group or polyureas, realize bonding object thereby the system intensity of making improves greatly.Than other adhesives, the more applicable process characteristic of the present invention of the adhesive of this kind.
In addition, polyurethane binder possesses excellent shear strength and impact property, is applicable to various structural bonding fields, and possesses excellent flexible nature.In addition, the gluing stick of polyurethane possesses excellent rubber property, can adapt to the bonding of different heat expansion coefficient base material, and it forms between base material has soft-hard transition zone, and not only bonding force is strong, also has excellent buffering, shock-absorbing function simultaneously.The low temperature of the gluing stick of polyurethane and ultralow temperature performance exceed the adhesive of every other type.Due to the characteristic of above-mentioned excellence, more can effectively nano magnetic particle be attached on fabric in the present invention, form uniform perception, comfortable body sense and good wash resistant effect.
effect of the present invention
The production and processing method of a kind of Novel radiation-proof fabric the present invention relates to, uses Nano-magnetic Metals as Electromagnetic Wave Absorbents, arranges on fabric by polymer binder, gives fabric outstanding radiation resistance.
In the present invention, use Nano-magnetic Metals as Electromagnetic Wave Absorbents compare current metal fibre blended yarn woven fabric and radiation protective layer composite material, there is the advantages such as technique is simple, taking is strong, and this fabric shielding property and durability all good.
In the present invention, in radiation-proof fabric, do not use metal fibre and metallized fibre, avoided the shortcomings such as washability is poor, grammes per square metre is large, soft comfortableness is poor.The fabric of this kind of method manufacture is by electromagnetic wave absorption and is translated into thermal release out simultaneously, has more superiority than the fabric of reflection electromagnetic wave.
In addition the nanometer magnetic metal of using in the present invention, is that the electron scattering, impurity and the lattice that are caused by the thermal vibration of lattice electric field are that three kinds of effects of interaction between the defect electron scattering and electronics and the electronics that cause realize to the absorption of electromagnetic wave energy.
In addition, in the present invention, by using this adhesive of special polymer binder to have good adhesive attraction to fabric and nanometer magnetic metal, and fabrics feel soft after treatment.
The process and the process conditions that filter out through the present invention, to fabric, produce fabric soft, that washing resistance good, radiation-proof effect is outstanding, and the method can be produced frivolous spring and summer anti-radiation face fabric by nanometer magnetic metal material consolidation.
It is worthy of note, in traditional handicraft, often need to add the material such as bleeding agent, sticking agent, and under the process conditions of the working solution of selecting according to the present invention and work, without adding this analog assistant can realize equally its relevant performance.
The specific embodiment
Embodiment mono-, 1# fabric
1, the preparation of material
(1) fabric: 26s TK/1 single jersey
(2) nanometer magnetic metal wave absorbing agent: self-control nanometer magnetic metal particle 1#
The preparation method of nanometer magnetic metal particle 1#: add 2gFeCl in 500mL
2and 5gFeCl
3, after fully dissolving, under stirring rod effect, at the uniform velocity drip NaOH solution, in the time of pH value appreciation 6-7, generate Fe
3o
4, the sedimentation and filtration post-drying generating is dry, be finally made into nano particle with ultrasonic wave crusher.
(3) polymer binder: polyurethane binding LF-85(Shanghai Li Feng Chemical Industry Science Co., Ltd).
2, radiation resistant finish processing technology
Radiation resistant finish processing adopts pads baking, after textile pad dressing liquid, bakes through drying, and nanometer magnetic metal is invested on fabric.
(1) composition of working solution:
Nanometer magnetic metal wave absorbing agent 40g/L
Polymer binder 50g/L
(2) radiation resistant finish process curve:
Fabric two soaks two and rolls → dry (90 ℃, 3min) → bake (130 ℃, 2min) → cooling in working solution
3, shielding property test
According to GB/T23463-2009 " protective clothes microwave radiation protecting clothes " test experiments fabric to shielding electromagnetic waves usefulness (SE).In screened room, place a manikin of wearing exposure suit, manikin front end is provided with can launch the electromagnetic transmitting antenna of different frequency, the electric field probe of manikin inside receives signal, electromagnetic electric field strength E 1 (V/m) when detecting respectively while not wearing sample clothing electromagnetic electric field strength E 2 (V/m) and wearing sample clothing, then calculate according to shield effectiveness SE=20lg (E2/E1).
In this experiment test, test frequency is respectively 30MHz, 300MHZ and 3000MHz.
Table one, 1# fabric are respectively the shield effectiveness of 30MHz, 300MHZ and 3000MHz at test frequency
By table one, this product fabric is to the shielding electromagnetic waves usefulness of three different frequencies all far above 10dB as seen, and this product fabric has good electromagnetic shielding effectiveness.
Embodiment bis-, 2# fabric:
1, the preparation of material
(1) fabric: T/C50/50 polyester-cotton blend single jersey
(2) nanometer magnetic metal wave absorbing agent: self-control nanometer magnetic metal particle 1#
(3) polymer binder: polyurethanes low-temperature adhesive (Shanghai Textile research institute)
2, radiation resistant finish processing technology
Radiation resistant finish processing adopts pads baking, after textile pad dressing liquid, bakes through drying, and nanometer magnetic metal is invested on fabric.
(1) composition of working solution:
Nanometer magnetic metal wave absorbing agent 60g/L
Polymer binder 60g/L
(2) radiation resistant finish process curve
Fabric two soaks two and rolls → dry (90 ℃, 3min) → bake (140 ℃, 2min) → cooling in working solution
3, shielding property test
According to GB/T23463-2009 " protective clothes microwave radiation protecting clothes " test experiments fabric to shielding electromagnetic waves usefulness (SE).In screened room, place a manikin of wearing exposure suit, manikin front end is provided with can launch the electromagnetic transmitting antenna of different frequency, the electric field probe of manikin inside receives signal, electromagnetic electric field strength E 1 (V/m) when detecting respectively while not wearing sample clothing electromagnetic electric field strength E 2 (V/m) and wearing sample clothing, then calculate according to shield effectiveness SE=20lg (E2/E1).
In this experiment test, test frequency is respectively 30MHz, 300MHZ and 3000MHz.
Table two, 2# fabric are respectively the shield effectiveness of 30MHz, 300MHZ and 3000MHz at test frequency
By table two, this product fabric is to the shielding electromagnetic waves usefulness of three different frequencies all far above 10dB as seen, and this product fabric has good electromagnetic shielding effectiveness.
Embodiment tri-, 3# fabric
1, the preparation of material
(1) the pure double-sided cloth of washing of fabric: 150D
(2) nanometer magnetic metal wave absorbing agent: self-control nanometer magnetic metal particle 1#
(3) polymer binder: the white PU NEW(of polyurethane binding specific force BASF).
2, radiation resistant finish processing technology
Radiation resistant finish processing adopts pads baking, after textile pad dressing liquid, bakes through drying, and nanometer magnetic metal is invested on fabric.
(1) composition of working solution:
Nanometer magnetic metal wave absorbing agent 30g/L
Polymer binder 40g/L
(2) radiation resistant finish process curve
Fabric two soaks two and rolls → dry (90 ℃, 3min) → bake (145 ℃, 2min) → cooling in working solution
3, shielding property test
According to GB/T23463-2009 " protective clothes microwave radiation protecting clothes " test experiments fabric to shielding electromagnetic waves usefulness (SE).In screened room, place a manikin of wearing exposure suit, manikin front end is provided with can launch the electromagnetic transmitting antenna of different frequency, the electric field probe of manikin inside receives signal, electromagnetic electric field strength E 1 (V/m) when detecting respectively while not wearing sample clothing electromagnetic electric field strength E 2 (V/m) and wearing sample clothing, then calculate according to shield effectiveness SE=20lg (E2/E1).
In this experiment test, test frequency is respectively 30MHz, 300MHZ and 3000MHz.
Table three, 3# fabric are respectively the shield effectiveness of 30MHz, 300MHZ and 3000MHz at test frequency
By table three, this product fabric is to the shielding electromagnetic waves usefulness of three different frequencies all far above 10dB as seen, and this product fabric has good electromagnetic shielding effectiveness.
Embodiment tetra-, 4# fabric
1, the preparation of material
(1) fabric: fabric 75D/72F (terylene+polypropylene fibre) interlock fabric
(2) nanometer magnetic metal wave absorbing agent: self-control nanometer magnetic metal particle 2#
The preparation method of nanometer magnetic metal particle 1#: add 2.5gFeCl in 500mL
2and 5gFeCl
3, after fully dissolving, under stirring rod effect, at the uniform velocity drip NaOH solution, in the time of pH value appreciation 6-7, generate Fe
3o
4, the sedimentation and filtration post-drying generating is dry, be finally made into nano particle with ultrasonic wave crusher.
(3) polymer binder: polyurethane binding LF-85(Shanghai Li Feng Chemical Industry Science Co., Ltd).
2, radiation resistant finish processing technology
Radiation resistant finish processing adopts pads baking, after textile pad dressing liquid, bakes through drying, and nanometer magnetic metal is invested on fabric.
(1) composition of working solution:
Nanometer magnetic metal wave absorbing agent 35g/L
Polymer binder 55g/L
(2) radiation resistant finish process curve
Fabric two soaks two and rolls → dry (95 ℃, 1min) → bake (145 ℃, 1min) → cooling in working solution
3, shielding property test
According to GB/T23463-2009 " protective clothes microwave radiation protecting clothes " test experiments fabric to shielding electromagnetic waves usefulness (SE).In screened room, place a manikin of wearing exposure suit, manikin front end is provided with can launch the electromagnetic transmitting antenna of different frequency, the electric field probe of manikin inside receives signal, electromagnetic electric field strength E 1 (V/m) when detecting respectively while not wearing sample clothing electromagnetic electric field strength E 2 (V/m) and wearing sample clothing, then calculate according to shield effectiveness SE=20lg (E2/E1).
In this experiment test, test frequency is respectively 30MHz, 300MHZ and 3000MHz.
Table four, 4# fabric are respectively the shield effectiveness of 30MHz, 300MHZ and 3000MHz at test frequency
By table four, this product fabric is to the shielding electromagnetic waves usefulness of three different frequencies all far above 10dB as seen, and this product fabric has good electromagnetic shielding effectiveness.
Embodiment five, 5# fabric
1, the preparation of material
(1) fabric: 75D/144F DTY+150D/100F DTY
(2) nanometer magnetic metal wave absorbing agent: self-control nanometer magnetic metal particle 3#
The preparation method of nanometer magnetic metal particle 1#: add 2.3g Fe (SO in 500mL
4)
2and 5.5gFe (SO
4)
3, after fully dissolving, under stirring rod effect, at the uniform velocity drip NaOH solution, in the time of pH value appreciation 6-7, generate Fe
3o
4, the sedimentation and filtration post-drying generating is dry, be finally made into nano particle with ultrasonic wave crusher.
(3) polymer binder: polyurethane binding LF-85(Shanghai Li Feng Chemical Industry Science Co., Ltd).
2, radiation resistant finish processing technology
Radiation resistant finish processing adopts pads baking, after textile pad dressing liquid, bakes through drying, and nanometer magnetic metal is invested on fabric.
(1) composition of working solution:
Nanometer magnetic metal wave absorbing agent 55g/L
Polymer binder 45g/L
(2) radiation resistant finish process curve
Fabric two soaks two and rolls → dry (90 ℃, 5min) → bake (130 ℃, 5min) → cooling in working solution
3, shielding property test
According to GB/T23463-2009 " protective clothes microwave radiation protecting clothes " test experiments fabric to shielding electromagnetic waves usefulness (SE).In screened room, place a manikin of wearing exposure suit, manikin front end is provided with can launch the electromagnetic transmitting antenna of different frequency, the electric field probe of manikin inside receives signal, electromagnetic electric field strength E 1 (V/m) when detecting respectively while not wearing sample clothing electromagnetic electric field strength E 2 (V/m) and wearing sample clothing, then calculate according to shield effectiveness SE=20lg (E2/E1).
In this experiment test, test frequency is respectively 30MHz, 300MHZ and 3000MHz.
Table five, 5# fabric are respectively the shield effectiveness of 30MHz, 300MHZ and 3000MHz at test frequency
By table five, this product fabric is to the shielding electromagnetic waves usefulness of three different frequencies all far above 10dB as seen, and this product fabric has good electromagnetic shielding effectiveness.
the effect of embodiment
As above-described embodiment, 1-5 is known, and technique involved in the present invention is applied widely, can be applied to the radiation proof processing of various types of cloth product.
As everyone knows, according to different frequency electromagnetic wave, commercially available exposure suit (traditional handicraft manufacture) shield effectiveness is substantially in 10-20dB left and right.
And according to table one in the present embodiment 1-5 to the data shown in the shield effectiveness form in five, can find out, the nanometer magnetic metal using due to the present invention is the electron scattering being caused by the thermal vibration of lattice electric field to the absorption of electromagnetic wave energy, impurity and lattice are that the three kinds of effects of interaction between the defect electron scattering and electronics and the electronics that cause realize, the shield effectiveness of its realization is far above 10-20dB, generally all more than 20-40dB, as can be seen here, by the prepared product of process of the present invention, it is effective, process conditions are simple, product stability is good.
Owing to having used in the present invention polyurethane binding, by the restriction of process conditions, shield effectiveness after repeatedly washing is still between 20-40dB, its washing times is extremely low on the impact of shield effectiveness, as can be seen here, in the present invention, select this type of material, by after being used in conjunction with of the conditions such as itself and technique, formula, greatly improve the durability degree of fabric radiation.
Claims (10)
1. a radiation resistant finish processing method for fabric, is characterized in that, adopts and pads baking, nanometer magnetic metal is invested on fabric,
Wherein, every liter pads the material that working solution comprises following mass component:
Nano metal wave absorbing agent 30-60g;
Polymer binder 40-60g.
2. the radiation resistant finish processing method of a kind of fabric as claimed in claim 1, is characterized in that, described in pad baking concrete technology step be:
Step 1, pad process: two soak two rolls;
Step 2, drying course: at the temperature of 85 ℃-95 ℃, baking 1-5 minute;
Step 3, bake process: at the temperature of 130 ℃-145 ℃, bake 1-5 minute.
3. the radiation resistant finish processing method of a kind of fabric as claimed in claim 2, is characterized in that, described drying course carries out 3 minutes at 90 ℃.
4. the radiation resistant finish processing method of a kind of fabric as claimed in claim 2, is characterized in that, described in bake process and bake 2 minutes.
5. the radiation resistant finish processing method of a kind of fabric as claimed in claim 1, is characterized in that, described nano metal wave absorbing agent is made up of nanometer magnetic metal particle.
6. the radiation resistant finish processing method of a kind of fabric as claimed in claim 5, is characterized in that, the preparation method of described nanometer magnetic metal particle is:
Step 1, slaine is dissolved in the water;
Step 2, at the uniform velocity drip NaOH solution while stirring, to pH be 6-7;
Step 3, filtration are removed after solids of sedimentation, bake drying;
Step 4, be made into nano particle with ultrasonic wave crusher;
Wherein, described slaine is selected from containing one or more the mixture in the salt compounds of magnetic metal;
The mass ratio of described slaine and water is 1-1.5:100.
7. the radiation resistant finish processing method of a kind of fabric as claimed in claim 6, is characterized in that, described slaine is selected from molysite.
8. the radiation resistant finish processing method of a kind of fabric as claimed in claim 7, is characterized in that, described slaine is selected from the mixture of divalent iron salt and trivalent iron salt.
9. the radiation resistant finish processing method of a kind of fabric as described in as arbitrary in claim 6 to 8, is characterized in that, described step 1 is that the material of following mass percentage content is carried out to sufficient mixed dissolution:
FeCl
2 0.4-0.5%；
FeCl
3 1-1.1%；
Water surplus.
10. the radiation resistant finish processing method of a kind of fabric as claimed in claim 1, is characterized in that, described polymer binder is polyurethane binding.
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|---|---|---|---|
| CN201410032272.XA CN103898736B (en) | 2014-01-23 | 2014-01-23 | A kind of radiation resistant finish processing method of fabric |
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| CN103898736B CN103898736B (en) | 2015-11-18 |
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|---|---|---|---|
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106381684A (en) * | 2016-09-21 | 2017-02-08 | 东莞市联洲知识产权运营管理有限公司 | Multilayer radiation-resistant fiber based on ferrites and nanometer materials and preparation method thereof |
| CN106835694A (en) * | 2016-12-23 | 2017-06-13 | 句容市申兔工艺针织厂 | A kind of finishing technique for increasing weft-knitted fabric capability of resistance to radiation |
| CN106930105A (en) * | 2016-12-23 | 2017-07-07 | 句容市申兔工艺针织厂 | Improve finishing agent and its application of weft-knitted fabric capability of resistance to radiation |
| CN107323007A (en) * | 2017-07-07 | 2017-11-07 | 浙江理工大学 | A kind of absorbing material preparation technology of honeycomb sandwich structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106381684A (en) * | 2016-09-21 | 2017-02-08 | 东莞市联洲知识产权运营管理有限公司 | Multilayer radiation-resistant fiber based on ferrites and nanometer materials and preparation method thereof |
| CN106835694A (en) * | 2016-12-23 | 2017-06-13 | 句容市申兔工艺针织厂 | A kind of finishing technique for increasing weft-knitted fabric capability of resistance to radiation |
| CN106930105A (en) * | 2016-12-23 | 2017-07-07 | 句容市申兔工艺针织厂 | Improve finishing agent and its application of weft-knitted fabric capability of resistance to radiation |
| CN106835694B (en) * | 2016-12-23 | 2020-03-06 | 句容市申兔工艺针织厂 | Finishing process for increasing radiation resistance of weft-knitted fabric |
| CN106930105B (en) * | 2016-12-23 | 2020-04-17 | 句容市申兔工艺针织厂 | Finishing agent for improving radiation resistance of weft-knitted fabric and application thereof |
| CN107323007A (en) * | 2017-07-07 | 2017-11-07 | 浙江理工大学 | A kind of absorbing material preparation technology of honeycomb sandwich structure |
| CN107323007B (en) * | 2017-07-07 | 2019-03-01 | 浙江理工大学 | A kind of absorbing material preparation process of honeycomb sandwich structure |
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| Publication number | Publication date |
|---|---|
| CN103898736B (en) | 2015-11-18 |
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Denomination of invention: Radiation proof finishing processing method of fabric Effective date of registration: 20211115 Granted publication date: 20151118 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch Pledgor: SHANGHAI JIALE Co.,Ltd. Registration number: Y2021310000100 |
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Denomination of invention: A radiation proof finishing method for fabrics Effective date of registration: 20220624 Granted publication date: 20151118 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch Pledgor: SHANGHAI JIALE Co.,Ltd. Registration number: Y2022310000085 |