CN110616504A - Preparation method of environment-friendly regenerated sponge product - Google Patents
Preparation method of environment-friendly regenerated sponge product Download PDFInfo
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- CN110616504A CN110616504A CN201910823093.0A CN201910823093A CN110616504A CN 110616504 A CN110616504 A CN 110616504A CN 201910823093 A CN201910823093 A CN 201910823093A CN 110616504 A CN110616504 A CN 110616504A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
- D04H1/544—Olefin series
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/542—Adhesive fibres
- D04H1/55—Polyesters
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/558—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in combination with mechanical or physical treatments other than embossing
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/061—Load-responsive characteristics elastic
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention discloses a preparation method of an environment-friendly regenerated sponge product, which relates to the field of sponge regeneration and comprises the steps of sponge granulation, ingredient weighing, opening and mixing, air-laying, heat bonding and shaping, subsequent processing and the like to obtain the sponge product. Can replace the traditional glue to realize the regeneration of the sponge, and the finished regenerated sponge does not have the problem that formaldehyde is released and the like to threaten the health of people.
Description
Technical Field
The invention relates to the field of sponge regeneration, in particular to a preparation method of an environment-friendly regenerated sponge product.
Background
The sponge is a soft foaming material product with the largest global dosage, comprises common sponge, high resilience, slow resilience, reticular sponge and the like, and is widely applied to the fields of furniture, cushion materials, filtration, sound insulation, shock resistance, decoration, packaging and the like. In the process of preparing sponges of various shapes, waste foam is inevitably generated, mainly leftovers of shape cutting, leftover materials, occasionally generated irregular products and the like. At first, the waste foam is treated as waste products or thrown into a garbage site for landfill and incineration, and the treatment mode is not environment-friendly and is extremely waste. Other treatment methods comprise a chemical degradation method (an alcoholysis method, an amine decomposition method, a pyrolysis method, an alkaline decomposition method, an alcohol amine method, a phosphate ester method, a hydrocracking method and the like) and a biological degradation method and the like, but have the defects of high cost, long period and the like. The physical recycling method is to bond leftover materials and leftovers and produce new sponge, and overcomes the defects of the recycling method to become a new form for recycling the waste sponge.
But the adhesive binder, the curing agent, the toughening agent, the diluent and other auxiliary agents are added into the new sponge produced by adhesion, the urea-formaldehyde resin contained in the adhesive is obtained by formaldehyde and urea through a certain chemical reaction, and the reaction is reversible, so that the sponge product added with the adhesive can release formaldehyde in the future use, and can also release formaldehyde or have formaldehyde residues in the production process, and when the regenerated sponge is used for household and bedding, the released formaldehyde can threaten the health of people.
The regenerated sponge is originally intended to recycle waste sponge leftover materials so as to achieve the purpose of environmental protection regeneration, and the regenerated sponge process is formed by crushing sponge leftover materials and stirring glue steam high-temperature sterilization and compression. The glue adhesive is added in the process, so that formaldehyde residues exist on the sponge product, formaldehyde can be released in subsequent use, the environment is not protected, and the harm to the health of a human body can be further caused.
Disclosure of Invention
The invention aims to provide a preparation method of an environment-friendly regenerated sponge, which can replace the traditional glue to realize the regeneration of the sponge, and the finished regenerated sponge does not have the problems of formaldehyde release and the like which threaten the health of a user.
In order to achieve the above effects, the application discloses a preparation method of an environment-friendly regenerated sponge product, which comprises the following steps:
(1) cutting sponge into granules, namely cutting the leftover materials and the recovered materials of the sponge into uniform particle blocks to form sponge particles;
(2) weighing the materials, namely weighing the sponge particles and the low-melting-point fibers obtained in the previous step according to the proportion of the materials;
(3) opening and mixing, namely opening the low-melting-point fibers into a loose single-fiber state by using an opener, throwing the low-melting-point fibers into a bin of a multi-bin cotton mixer through an air pipe, throwing the sponge particles weighed by the ingredients in the previous step into the multi-bin cotton mixer for mixing, and further opening and mixing the mixed materials uniformly through fine opening equipment;
(4) air-laying, namely preparing a sponge fiber web with a certain gram weight by uniformly mixing the sponge particles and the low-melting-point fibers in an air-laying mode;
(5) hot bonding and shaping, namely passing the sponge fiber net through an oven, penetrating the sponge fiber net through hot air, melting fibers, bonding and wrapping sponge particles, and then cold pressing the sponge particle net through a steel roller for controlling the thickness to obtain a sponge felt with a certain density;
(6) and (4) carrying out subsequent processing, namely carrying out technological finishing such as cutting, film covering and the like on the obtained sponge felt to obtain a sponge product which can be directly applied.
Further wherein the low melting point fibers are selected from one or more of 4080 fibers, ES fibers, LDPE fibers, and PP fibers.
Further, in the step of weighing the ingredients, the sponge particles account for 70-95% of the total mass, and the low-melting-point fibers account for 5-15% of the total mass.
Further, the oven temperature in the thermal bonding and shaping step is controlled at 165-180 ℃ for thermal drying.
The invention has the beneficial effects that:
in the preparation process, the adhesive fiber is added, no glue is added, no harmful substance is generated in the production process and subsequent use, and the sponge leftover material and the recycled sponge material can be made into the sponge product in an environment-friendly regeneration mode. The obtained regenerated sponge product is pollution-free and odor-free, and is suitable for application in various life scenes. Adopt the production line of air laid net, production efficiency is higher, with abandonment sponge recycle, raw materials wide sources, with low costs to compare with the density product, this product has better elasticity, has advantages such as the indentation hardness is big.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the production process flow of the air-laid cellucotton is as follows:
(1) cutting sponge into granules: sponge scrap and recycled materials are cut into uniform particle blocks to form sponge particles, and in the embodiment, the sponge is cut into sponge particles of 1 x 1cm by a three-group-cutter sponge granulator.
(2) Weighing the ingredients: and (3) weighing the sponge particles and the low-melting-point fibers obtained in the previous step according to the mixing proportion, wherein pink sponge particles and 4080 fibers are adopted, and the weight proportion is 80% and 20% respectively.
(3) Opening and mixing: firstly, pre-unpacking 4080 fibers, opening tightly packaged fiber blocks or fiber bundles into an sparse single fiber state, then feeding the fiber blocks or fiber bundles into a No. 1 feeding bin through an air pipe, simultaneously feeding sponge particles into a No. 2 (No. 3) feeding bin to fully mix the raw materials in a multi-bin cotton mixer, and then feeding the mixed raw materials into fine opening equipment to further open and mix the mixed raw materials to ensure the uniformity of mixed materials.
(4) Air laying: after being processed by the air-laid machine, the fibers are in a supporting framework which is vertically crossed and three-dimensionally distributed, the integral structure of the conventional fiber forming is completely changed, and the 360-degree resilience of the fiber structure is greatly increased. Thereby improving the density of the sponge fiber net, enhancing the tensile strength of the sponge fiber net and increasing the elasticity by multiple.
(5) And (3) thermal bonding and shaping: take 3 hot oven and 1 cooling device, the box adopts the thermal-insulated cotton of environmental protection outward to guarantee fully to practice thrift heat energy and reduce the influence to the environment. The sponge fiber net enters an oven through a conveying device, low-melting-point fibers are melted through high-temperature baking at 170 ℃, the melted fibers are mutually adhered and bonded with sponge particles, and loose sponge particles are tightly wrapped. And then, immediately cooling and shaping after passing through a cold pressing roller with certain pressure and clearance to obtain the sponge fibrofelt with certain thickness specification.
(6) And (3) post processing:
a. film coating process: the method comprises the steps of firstly trimming the sponge fibrofelt by using a splitting machine, cutting off products with unstable irregular performance on two sides, and then laminating the products according to requirements. The semi-transparent frosted PU film is adopted in the embodiment, the concrete process flow is that the PU film is arranged on a roller, then the adhesive coating is carried out on the film, the drying temperature is 55 ℃, the hot pressing temperature and the pressure of a press roller are adjusted to carry out film covering on the sponge fibrofelt, the hot pressing temperature of the embodiment is 65 ℃, and the pressure of the press roller is 20 MPa.
b. Cutting: and adjusting other cutter heads of the splitting machine (the splitting machine is provided with five groups of longitudinal cutters and one group of transverse cutters), adjusting the distance between the longitudinal cutting and the transverse cutting, finishing the cutting according to the length and the width of the design requirement, and finishing the manufacture of the regenerated sponge product with the surface coated with the film. The finished film-coated sponge product can be directly applied.
Example two:
the production process flow of the air-laid cellucotton is as follows:
(1) cutting sponge into granules: sponge scrap and recycled materials are cut into uniform particle blocks to form sponge particles, and in the embodiment, the sponge is cut into sponge particles of 1 x 1cm by a three-group-cutter sponge granulator.
(2) Weighing the ingredients: the sponge particles obtained in the previous step and the low-melting-point fibers are proportioned and weighed according to the proportioning ratio, and pink sponge particles and white low-melting-point fibers LMF (4080 fibers) are adopted, and the proportioning by weight is respectively 80% and 20%.
(3) Opening and mixing: firstly, pre-unpacking 4080 fibers, opening tightly packaged fiber blocks or fiber bundles into an sparse single fiber state, then feeding the fiber blocks or fiber bundles into a No. 1 feeding bin through an air pipe, and simultaneously feeding sponge particles into a No. 2 (No. 3) feeding bin to fully mix the raw materials in a multi-bin cotton mixer.
(4) Air laying: after being processed by the air-laid machine, the fibers are in a supporting framework which is vertically crossed and three-dimensionally distributed, the integral structure of the conventional fiber forming is completely changed, and the 360-degree resilience of the fiber structure is greatly increased. Thus, the fiber density of the cotton net is improved, the tensile strength of the cotton net is enhanced, and the elasticity is increased by times.
(5) And (3) thermal bonding and shaping: take 3 hot oven and 1 cooling device, the box adopts the thermal-insulated cotton of environmental protection outward to guarantee fully to practice thrift heat energy and reduce the influence to the environment. The sponge fiber net enters an oven through a conveying device, low-melting-point fibers are melted through high-temperature baking at 170 ℃, the melted fibers are mutually adhered and bonded with sponge particles, and loose sponge particles are tightly wrapped. And then, immediately cooling and shaping after passing through a cold pressing roller with certain pressure and clearance to obtain the sponge fibrofelt with certain thickness specification.
(6) And (3) post processing:
cutting: and adjusting other cutter heads of the splitting machine (the splitting machine is provided with five groups of longitudinal cutters and one group of transverse cutters), adjusting the distance between the longitudinal cutters and the transverse cutters, and finishing the cutting according to the length and width of the design requirement to finish the manufacturing of the regenerated sponge product.
The density of the regenerated sponge product prepared by the second test example is about 30kg/m3And selecting the existing common sponge with the same density as a comparative example, and carrying out indentation hardness test on the finished product prepared in the second embodiment and the comparative example product by using a foam indentation hardness tester according to a method of national standard GB/T10807-2006, wherein the test result shows that the indentation hardness of the product in the second embodiment is 75N, and the indentation hardness of the comparative example product is 60N, so that the process product has the advantages of better elasticity and higher indentation hardness for the sponge product with the same density.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments without departing from the spirit and scope of the present invention, and that all such modifications, alterations and changes in combination are deemed to be within the scope of the present invention.
Claims (7)
1. The preparation method of the environment-friendly regenerated sponge product is characterized by comprising the following steps:
(1) cutting sponge into granules, namely cutting the leftover materials and the recovered materials of the sponge into uniform particle blocks to form sponge particles;
(2) weighing the materials, namely weighing the sponge particles and the low-melting-point fibers obtained in the previous step according to the proportion of the materials;
(3) opening and mixing, namely opening the low-melting-point fibers into a loose single-fiber state by using an opener, throwing the low-melting-point fibers into a bin of a multi-bin cotton mixer through an air pipe, throwing the sponge particles weighed by the ingredients in the previous step into the multi-bin cotton mixer for mixing, and further opening and mixing the mixed materials uniformly through fine opening equipment;
(4) air-laying, namely preparing a sponge fiber web with a certain gram weight by uniformly mixing the sponge particles and the low-melting-point fibers in an air-laying mode;
(5) hot bonding and shaping, namely passing the sponge fiber net through an oven, penetrating the sponge fiber net through hot air, melting fibers, bonding and wrapping sponge particles, and then cold pressing the sponge particle net through a steel roller for controlling the thickness to obtain a sponge felt with a certain density;
(6) and (3) performing subsequent processing, namely cutting and/or finishing the obtained sponge felt by a film covering process to obtain a sponge product which can be directly applied.
2. The method for preparing an environment-friendly regenerated sponge product as claimed in claim 1, wherein the method comprises the following steps: the low-melting-point fibers are selected from one or more of 4080 fibers, ES fibers, LDPE fibers and PP fibers.
3. The method for preparing an environment-friendly regenerated sponge product as claimed in claim 1, wherein the method comprises the following steps: in the step of proportioning and weighing, the sponge particles account for 70-95% of the total mass, and the low-melting-point fibers account for 5-15% of the total mass.
4. The method for preparing an environment-friendly regenerated sponge product as claimed in claim 1, wherein the method comprises the following steps: the oven temperature in the thermal bonding and shaping step is controlled at 165-180 ℃ for heat drying.
5. The method for preparing an environment-friendly regenerated sponge product as claimed in claim 1, wherein the method comprises the following steps: and in the opening and mixing step, the low-melting-point fibers and the sponge particles respectively enter a multi-bin cotton mixer from different feeding bins for mixing.
6. The method for preparing an environment-friendly regenerated sponge product as claimed in claim 1, wherein the method comprises the following steps: the film laminating procedure in the subsequent processing step is to mount the film on a roller, then carry out adhesive coating on the film and dry the film, and adjust the hot-pressing temperature and the pressure of a press roller to carry out the film laminating procedure on the sponge fibrofelt.
7. The method for preparing an environment-friendly regenerated sponge product as claimed in claim 6, wherein the method comprises the following steps: the film used in the film covering process is a PU film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910823093.0A CN110616504A (en) | 2019-09-02 | 2019-09-02 | Preparation method of environment-friendly regenerated sponge product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910823093.0A CN110616504A (en) | 2019-09-02 | 2019-09-02 | Preparation method of environment-friendly regenerated sponge product |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0160560A2 (en) * | 1984-04-30 | 1985-11-06 | Johnson & Johnson Products Inc. | Nonwoven surgical sponge with x-ray detectable element |
| JPH05339860A (en) * | 1992-06-10 | 1993-12-21 | Hosokawa Micron Corp | Production of molded article of luffa fiber |
| CN2518879Y (en) * | 2001-10-08 | 2002-10-30 | 吴先祥 | Resin fibre |
| CN101238249A (en) * | 2005-08-10 | 2008-08-06 | 东丽株式会社 | Sponge-like structure and powder and process for production thereof |
| CN101307529A (en) * | 2008-04-15 | 2008-11-19 | 黄显飚 | Airflow air laid fiber cotton preparing process and manufactured fibre cotton |
| CN103061036A (en) * | 2012-12-30 | 2013-04-24 | 刘卫波 | Cellucotton pad and preparation process thereof |
| CN103088548A (en) * | 2013-02-05 | 2013-05-08 | 黄巧玲 | Fiber cotton cushion and preparation process thereof |
| CN109440298A (en) * | 2018-09-20 | 2019-03-08 | 浙江理工大学 | A kind of automobile-used bamboo fibre composite felt and its preparation process |
-
2019
- 2019-09-02 CN CN201910823093.0A patent/CN110616504A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0160560A2 (en) * | 1984-04-30 | 1985-11-06 | Johnson & Johnson Products Inc. | Nonwoven surgical sponge with x-ray detectable element |
| JPH05339860A (en) * | 1992-06-10 | 1993-12-21 | Hosokawa Micron Corp | Production of molded article of luffa fiber |
| CN2518879Y (en) * | 2001-10-08 | 2002-10-30 | 吴先祥 | Resin fibre |
| CN101238249A (en) * | 2005-08-10 | 2008-08-06 | 东丽株式会社 | Sponge-like structure and powder and process for production thereof |
| CN101307529A (en) * | 2008-04-15 | 2008-11-19 | 黄显飚 | Airflow air laid fiber cotton preparing process and manufactured fibre cotton |
| CN103061036A (en) * | 2012-12-30 | 2013-04-24 | 刘卫波 | Cellucotton pad and preparation process thereof |
| CN103088548A (en) * | 2013-02-05 | 2013-05-08 | 黄巧玲 | Fiber cotton cushion and preparation process thereof |
| CN109440298A (en) * | 2018-09-20 | 2019-03-08 | 浙江理工大学 | A kind of automobile-used bamboo fibre composite felt and its preparation process |
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Application publication date: 20191227 |
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