CN204686683U - Scouring pad - Google Patents
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- CN204686683U CN204686683U CN201520173579.1U CN201520173579U CN204686683U CN 204686683 U CN204686683 U CN 204686683U CN 201520173579 U CN201520173579 U CN 201520173579U CN 204686683 U CN204686683 U CN 204686683U
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Abstract
The utility model provides a kind of scouring pad, belongs to field of nonwoven fabric technology, and it can solve the problem of existing scouring pad function singleness.Scouring pad of the present utility model comprises: spongy layer; Be attached at the ore in sand form layer of described spongy layer side; Be positioned at the nonwoven layer of described spongy layer opposite side.Scouring pad of the present utility model can be used for polishing, the rust cleaning of metal device, cleaning of tableware kitchen tools, the polishing, indoor wall sanding etc. on furniture floor.
Description
Technical field
The utility model belongs to field of nonwoven fabric technology, is specifically related to a kind of scouring pad.
Background technology
Scouring pad is all applied widely in industry manufacture, many fields such as daily of living, and as can be used for polishing, the rust cleaning of various metal device, also can be used for the clean of tableware kitchen tools, or can be used for the polishing on furniture floor, the sanding etc. of indoor wall.
Obviously, different applications requires that scouring pad has different performances.Such as, scouring pad for metal device polishing must have very strong wearability and cutting ability, and less demanding to wearability and cutting ability of the scouring pad cleaned for tableware, but need good flexibility, and preferably have the ability of certain storage washing agent.
Existing different scouring pad has different performance, thus can be used for different field, but the function of often kind of scouring pad product self is still very single, and range of application is limited.
Utility model content
The utility model, for the problem of existing scouring pad function singleness, provides a kind of scouring pad of feature richness.
The technical scheme that solution the utility model technical problem adopts is a kind of scouring pad, and it comprises:
Spongy layer;
Be attached at the ore in sand form layer of described spongy layer side;
Be positioned at the nonwoven layer of described spongy layer opposite side.
Preferably, ore in sand form is distributed with between the fiber gap of described nonwoven layer at least away from the side of spongy layer.
Scouring pad side of the present utility model is the ore in sand form layer that wearability is stronger, opposite side is the more weak nonwoven layer of wearability, therefore its both sides performance has obvious difference, thus different effects can be played, for different field (if ore in sand form layer is for metal device of polishing, nonwoven layer is used for clean tableware), function is abundanter, uses flexibly.
Scouring pad of the present utility model can be used for polishing, the rust cleaning of metal device, cleaning of tableware kitchen tools, the polishing on furniture floor, the sanding etc. of indoor wall.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the scouring pad of embodiment of the present utility model;
Wherein, Reference numeral is: 1, ore in sand form layer; 2, spongy layer; 3, nonwoven layer; 31, sandblasting layer; 311, ore in sand form; 4, adhesive layer.
Detailed description of the invention
For making those skilled in the art understand the technical solution of the utility model better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
(1) detailed description of the invention
As shown in Figure 1, the utility model provides a kind of scouring pad, and it comprises:
Spongy layer 2;
Be attached at the ore in sand form layer 1 of spongy layer 2 side;
Be positioned at the nonwoven layer 3 of spongy layer 2 opposite side.
Visible, scouring pad side of the present utility model is the ore in sand form layer 1 that wearability is stronger, opposite side is the more weak nonwoven layer 3 of wearability, therefore its both sides performance has obvious difference, thus different effects can be played, for different field (if ore in sand form layer 1 is for metal device of polishing, nonwoven layer 3 is for clean tableware), function is abundanter, uses flexibly.
Concrete, the spongy layer 2 in scouring pad is made up of sponge.Sponge is used to be because sponge is easy to distortion as the substrate of ore in sand form layer 1, but recovery shape that can be very fast (namely there is good resiliency), therefore carry out polishing or clean time sponge can be out of shape with the surface configuration of device, device surface of better fitting, reaches better effect; Meanwhile, sponge is porous, therefore it can be used as the storage medium of water, cleaning agent etc., thus in use continues to provide water, cleaning agent, improves result of use.
Preferably, the thickness of spongy layer 2 is at 4 ~ 6mm.
Obviously, the spongy layer 2 of suitable thickness can provide suitable resiliency, water storage, thus improves its performance.
Preferably, ore in sand form layer 1 is made up of polyurethane sponge, and the density of polyurethane sponge is at 0.065 ~ 0.075g/cm
3, shore C hardness is 80 ~ 90.
That is, compared with the sponge of routine, hardness, the density of this sponge material selected by spongy layer 2 are comparatively large, thus it is harder on the whole, is not to be very easy to distortion, thus can be the support that ore in sand form layer 1 provides firm, ensure the result of use of ore in sand form layer 1.
Wherein, be to be understood that; above for the restriction of sponge density, hardness etc.; restriction not to new material; also non-limiting new material property, but represent in known sponge material, preferably adopt the sponge material meeting above characteristic for the utility model; namely it limits the ad hoc structure adopting known materials to form product, belongs to and use novel protection domain.
Ore in sand form layer 1 is the layer be made up of the ore in sand form 311 be bonded together, it is bonded in spongy layer 2 side by the effect of binding agent, and there is higher wearability, cutting ability, therefore can be used for polishing, the polishing of metal device etc., or for article clean etc. of heavy contamination.
Wherein, ore in sand form 311 is formed primarily of the inorganic mineral powder of high rigidity, and its material can be alundum (Al2O3) (corundum, Brown Alundum), carborundum (diamond dust), calcium carbonate (lime stone) etc.
Preferably, the thickness of ore in sand form layer 1 is at 0.05 ~ 0.20 millimeter.
Obviously, the thickness of ore in sand form layer 1 is too thin, and can be polished very soon, service life is short, too thick hardness and the cost that can increase again product, therefore above thickness range is proper.
Preferably, the grain number of the ore in sand form 311 in ore in sand form floor 1 is P180 ~ 400 (i.e. particle diameters 30 ~ 80 microns) according to Chinese national standard.
Obviously, the cutting ability of ore in sand form layer 1 has close relationship with the particle diameter of wherein ore in sand form 311, in the utility model, the ore in sand form 311 of different-grain diameter (or domain size distribution) can be selected as required to form ore in sand form layer 1, thus obtain the product with suitable performance.
Concrete, ore in sand form layer 1 of the present utility model can be the technique formation of being planted sand by electrostatic sand-planting or gravity.That is, can first at the binding agent (as phenolic resins, Lauxite, acrylic latex, benzene emulsion, styrene-butadiene latex etc.) of spongy layer 2 side coating (as roller coat) suitable thickness, pass through the effect of gravity or electric field (voltage is generally at 1 ~ 60kV) afterwards, make that there is predetermined particle diameter, the ore in sand form 311 of hardness is uniformly distributed in a binder, make binding agent crosslinking curing afterwards, thus ore in sand form 311 particle bond is generated ore in sand form layer 1 together, and ore in sand form layer 1 is combined closely on spongy layer 2.
At the opposite side (side away from ore in sand form layer 1) of spongy layer 2, be then provided with nonwoven layer 3.
Non-woven fabrics also claims adhesive-bonded fabric, and it is the dimensional fibre web frame be combined together to form by bonding mode by fiber, and its volumetric porosity ratio of cumulative volume (pore volume with) can about 10 ~ 80%.Such as, one or more in available nylon fiber, polyster fibre, polyethylene fibre, polypropylene fibre, low-melting fiber, polyester bi-component fibers, fleece is formed through modes such as thick shredding, smart shredding, combing, cross lapping, random comb and parallel cotton fibers prior to spinnings, binding agent is added wherein afterwards by roller coat, make again adhesive cures to be cross-linked with fortifying fibre between adhesion, can non-woven fabrics be obtained; Above-mentioned process can improve hot strength, environmental stress resistance, the dimensional stability of non-woven fabrics; Wherein, binding agent can be one or more in phenolic resins, Lauxite, amino condensation resin, styrene-butadiene latex, styrene-acrylic latex, acrylic latex, acetate emulsion etc., and carrys out by adding dispersible pigment color paste etc. in binding agent the color that known component changes non-woven fabrics.
Preferably, the thickness of nonwoven layer 3 is at 8 ~ 22mm.
The hardness ratio sponge of nonwoven layer 3 is low, and it does not have independently ore in sand form layer, therefore needs to be directly used in clean or polishing, and therefore it can have larger thickness, to improve service life.
Preferably, form the length of the fiber of nonwoven layer 3 at 15 ~ 100mm, rugosity is 2 ~ 200 points of Tekes (dtex), and crispation number is 7 ~ 13/25mm.
Find after deliberation, the fibroplastic nonwoven layer 3 meeting above characteristic compares and is suitable for use as scouring pad.Wherein, most preferred fiber is nylon fiber.
Concrete, this nonwoven layer 3 is attached on spongy layer 2 by adhesive layer 4.That is, binding agent can be coated at spongy layer 2 away from the side of ore in sand form layer 1, thus nonwoven layer 3 is bondd thereon.Wherein, adhesive layer 4 is preferably made up of moisturecuring binding agent.Moisturecuring binding agent refers to the binding agent that can solidify in the atmosphere (as humid air) that water content is higher, and its condition of cure requires lower, easily realizes; Meanwhile, moisturecuring binding agent generally has good resistance to water, owing to will use in aqueous environment in a lot of situation of scouring pad, therefore preferably with moisturecuring binding agent bonding nonwoven layer 3 and spongy layer 2.Concrete, available moisturecuring binding agent comprises polyurethane glue, acrylic latex, phenolic resins, 3M latex add curing agent etc.
Preferably, ore in sand form 311 is distributed with between the fiber gap of nonwoven layer 3 away from the side of spongy layer 2; Preferred, nonwoven layer 3 is distributed with ore in sand form 311 near between the fiber gap of the side of spongy layer 2.
That is, ore in sand form is made to enter in the gap of the fiber of nonwoven layer 3 by blasting craft, thus at least form sandblasting layer 31 in nonwoven layer 3 near the side of sponge, with the ore in sand form layer 1 on spongy layer 2 unlike, ore in sand form 311 in nonwoven layer 3 does not form independent layer, but is distributed in the gap of the fibre structure of nonwoven layer 3.Concrete, the grain number of the ore in sand form 311 in sandblasting floor 31 is P180 ~ P400 (i.e. particle diameter 30 ~ 80 microns).
Wherein, should be appreciated that above sandblasting layer 31 is not the restriction to material composition or combination of materials, but represent by fibrous cancellated gap, be distributed with the structure of ore in sand form 311 particle, therefore it is the restriction to product space structure.
Obviously, sandblasting layer 31 significantly can improve the performance such as wearability, cutting ability of nonwoven layer 3, because nonwoven layer 3 is expose away from the side of spongy layer 2, therefore preferably carries out sandblasting in this side.
And as previously mentioned, as another kind of mode of the present utility model, nonwoven layer 3 all can contain ore in sand form 311 near spongy layer 2 with away from the both sides of spongy layer 2.This is because although nonwoven layer 3 is not directly used in polishing and cleans near the side of spongy layer 2, but non-woven fabrics quality is softer, in use can wear and tear faster, if its both sides are all containing ore in sand form 311, then when side (side away from the spongy layer 2) wearing and tearing that it exposes exhaust, the ore in sand form 311 of opposite side will come out, and makes nonwoven layer 3 can continue to use, extends its service life.
Concrete, the method making ore in sand form 311 enter nonwoven layer 3 is sand-blast.That is, first the binding agents such as ore in sand form 311 and phenolic resins, Lauxite, styrene-acrylic latex, styrene-butadiene latex are mixed to form water paint, by spray gun, this water paint is sprayed to nonwoven layer 3 afterwards, thus ore in sand form 311 can enter in the gap of nonwoven layer 3 fiber, and be fixed in nonwoven layer 3 after adhesive cures, form sandblasting layer 31.Wherein, change sandblasting amount by adjustment spray gun height, spray gun quantity, spray gun hunting frequency, the pressure that sprays paint (usually at 3 ~ 6bar) etc., the sandblasting amount of general every side controls at 60 ~ 250g/m
2.Concrete, when sandblasting all will be carried out in nonwoven layer 3 both sides, after the sandblasting binding agent of wherein side generally will be waited to solidify completely, then carry out the sandblasting of opposite side, in case there is scab.Meanwhile, the sandblasting of nonwoven layer 3 near spongy layer 2 side obviously will be carried out before nonwoven layer 3 is bonded on spongy layer 2, and just can be bonded on spongy layer 2 by nonwoven layer 3 after also needing to wait the sandblasting binding agent of this side to solidify completely; And nonwoven layer 3 is preferably carried out independent nonwoven layer 3 away from the sandblasting of spongy layer 2 side.
(2) detailed description of the invention
Below the scouring pad of each concrete the present embodiment of the present utility model is introduced.
Embodiment 1:
Evenly coat phenolic resins by the polyurethane sponge layer of 4mm thickness, evenly plant upper ore in sand form by electrostatic sand-planting technique, then crosslinking curing obtains the ore in sand form layer that thickness is about 0.2mm.Wherein ore in sand form main component is alundum (Al2O3), and grade is medium, and grain number is P180.
Fiber is obtained 220g/m through techniques such as thick shredding, smart shredding, combing, cross lapping and random comb and parallel cotton fibers prior to spinnings
2fleece, wherein fiber is nylon fiber, length 51mm, and crispation number is 7/25mm, and rugosity is 15dtex; Then fleece is coated the water paint of phenolic resins by two coating device, wet coating amount 175g/m
2; Fleece after coating is at 150 ~ 180 DEG C of crosslinking curings; Spray into ore in sand form by blasting craft in fleece both sides, then solidification obtains the nonwoven layer of thickness 10mm; Wherein, the sandblasting amount of every side is at 200g/m
2, ore in sand form main component is alundum (Al2O3), and grain number is P240.
Spongy layer is coated polyurethane glue away from the side even roller of ore in sand form layer, then by spongy layer and nonwoven layer laminating under a certain pressure, then put into baking oven in 100 ~ 135 DEG C solidification 20min, be die-cut into the scouring pad product of definite shape finally by die-cutting machine.
Test the cutting ability on the two sides of scouring pad product, its result is as follows:
| Project | Result |
| Cutting ability-grinding weight-loss method (g) of ore in sand form layer | 2.35 |
| Cutting ability-grinding weight-loss method (g) of nonwoven layer | 1.98 |
Wherein, cutting ability with " gram " for unit represents, its method of testing is disk sample being die-cut into diameter 4 inches, then stick to and tester rotates and grinds PMMA (polymethyl methacrylate) plastic plate, plastic plate is worn away under 5000 revolutions weight (unit for gram).
Embodiment 2:
Evenly coat Lauxite by the polyurethane sponge layer of 5mm thickness, evenly plant upper ore in sand form by electrostatic sand-planting technique, then crosslinking curing obtains the ore in sand form layer that thickness is about 0.1mm.Wherein ore in sand form main component is alundum (Al2O3), and grade is meticulous level, and grain number is P320.
Fiber is obtained 420g/m through techniques such as thick shredding, smart shredding, combing, cross lapping and random comb and parallel cotton fibers prior to spinnings
2fleece, wherein fiber is nylon fiber, length 51mm, and crispation number is 10/25mm, and rugosity is 15dtex; Then fleece is coated the water paint of phenolic resins by roller coating device, wet coating amount 200g/m
2; Fleece after coating is at 160 ~ 180 DEG C of crosslinking curings; Spray into ore in sand form by blasting craft fleece is one-sided, then solidification obtains the nonwoven layer of thickness 20mm; Wherein, the sandblasting amount of every side is at 180g/m
2, ore in sand form main component is alundum (Al2O3), and grain number is P280.
Spongy layer is coated polyurethane glue away from the side even roller of ore in sand form layer, then by spongy layer and nonwoven layer laminating under a certain pressure, then put into baking oven in 100 ~ 135 DEG C solidification 20min, be die-cut into the scouring pad product of definite shape finally by die-cutting machine.
Test the cutting ability on the two sides of scouring pad product, its result is as follows:
| Project | Result |
| Cutting ability-grinding weight-loss method (g) of ore in sand form layer | 2.52 |
| Cutting ability-grinding weight-loss method (g) of nonwoven layer | 1.56 |
Visible, in both embodiments, the cutting ability of ore in sand form layer is all obviously greater than the cutting ability of nonwoven layer, that is, scouring pad product both sides of the present utility model have different polishings, cleaning capacity, therefore they have different application, therefore the use of scouring pad product is more flexible, and purposes is more extensive.
Embodiment 3:
Evenly coat phenolic resins by the polyurethane sponge layer of 4mm thickness, evenly plant upper ore in sand form by electrostatic sand-planting technique, then crosslinking curing obtains the ore in sand form layer that thickness is about 0.08mm.Wherein ore in sand form main component is alundum (Al2O3), and ore in sand form grade is meticulous level, and grain number is P400.
Fiber is obtained 220g/m through techniques such as thick shredding, smart shredding, combing, cross lapping and random comb and parallel cotton fibers prior to spinnings
2fleece, wherein fiber is nylon fiber, length 51mm, and crispation number is 7/25mm, and rugosity is 15dtex; Then fleece is coated the water paint of phenolic resins by roller coating device, wet coating amount 160g/m
2; Fleece after coating is at 150 ~ 170 DEG C of crosslinking curings; Add ore in sand form by blasting craft fleece is one-sided, then solidification obtains the nonwoven layer of thickness 11mm; Wherein, the sandblasting amount of every side is at 180g/m
2, ore in sand form main component is alundum (Al2O3), and grain number is P220.
Spongy layer is coated bi-component glue (3M USPolyurethane Resin and curing agent Bayer Hardner RE) away from the side even roller of ore in sand form layer, then by spongy layer and nonwoven layer laminating under a certain pressure, put into baking oven again to solidify, be die-cut into the scouring pad product of definite shape finally by die-cutting machine.
Embodiment 4:
Evenly coat Lauxite by the polyurethane sponge layer of 5mm thickness, evenly plant upper ore in sand form by gravity implantation process of sand, then crosslinking curing obtains the ore in sand form layer that thickness is about 0.12mm.Wherein ore in sand form main component is alundum (Al2O3), and ore in sand form grade is ultra-fine level, and grain number is P240.
Fiber is obtained 600g/m through techniques such as thick shredding, smart shredding, combing, cross lapping and random comb and parallel cotton fibers prior to spinnings
2fleece, wherein fiber is the nylon fiber of 80wt% and the polyster fibre of 20wt%, wherein nylon fiber length 51mm, and crispation number is 13/25mm, and rugosity is 15dtex; Polyster fibre length 51mm, rugosity is 50dtex; Then fleece is coated the water paint of Lauxite by roller coating device, wet coating amount 160g/m
2; Fleece after coating is at 150 ~ 180 DEG C of crosslinking curings; Add ore in sand form by blasting craft at fleece bilateral, then solidification obtains the nonwoven layer of thickness 20mm; Wherein, the sandblasting amount of every side is at 220g/m
2, ore in sand form main component is Brown Alundum, and grain number is P240.
Spongy layer is coated polyurethane glue away from the side even roller of ore in sand form layer, then by spongy layer and nonwoven layer laminating under a certain pressure, then put into baking oven and solidify, be die-cut into the scouring pad product of definite shape finally by die-cutting machine.
Embodiment 5:
The polyurethane sponge layer of thickness 4mm evenly coats polyurethane primer, the face glue that mixes with ore in sand form of polyurethane coating again after primary solidification, obtain through crosslinking curing again and obtain the ore in sand form layer that thickness is about 0.10mm, ore in sand form main component is alundum (Al2O3), ore in sand form grade is ultra-fine level, and grain number is P320.
Fiber is obtained 420g/m through techniques such as thick shredding, smart shredding, combing, cross lapping and random comb and parallel cotton fibers prior to spinnings
2fleece, wherein fiber is the nylon fiber of 80wt% and the polyster fibre of 20wt%, wherein nylon fiber length 51mm, and crispation number is 10/25mm, and rugosity is 15dtex, polyster fibre length 51mm, and rugosity is 50dtex; Then fleece is coated the water paint of Lauxite by roller coating device, wet coating amount 150g/m
2; Fleece after coating is at 150 ~ 180 DEG C of crosslinking curings; Add ore in sand form by blasting craft fleece is one-sided, then solidification obtains the nonwoven layer of thickness 11mm; Wherein, the sandblasting amount of every side is at 250g/m
2, ore in sand form main component is Brown Alundum, and grain number is P280.
Spongy layer is coated polyurethane glue away from the side even roller of ore in sand form layer, then by spongy layer and nonwoven layer laminating under a certain pressure, be die-cut into the scouring pad product of definite shape after 24 hours moisture solidifications through die-cutting machine.
Be understandable that, the illustrative embodiments that above embodiment is only used to principle of the present utility model is described and adopts, but the utility model is not limited thereto.For those skilled in the art, when not departing from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement are also considered as protection domain of the present utility model.
Claims (11)
1. a scouring pad, is characterized in that, comprising:
Spongy layer;
Be attached at the ore in sand form layer of described spongy layer side;
Be positioned at the nonwoven layer of described spongy layer opposite side.
2. scouring pad according to claim 1, is characterized in that,
The thickness of described spongy layer is at 4 ~ 6mm.
3. scouring pad according to claim 1, is characterized in that,
Described spongy layer is made up of polyurethane sponge;
The density of described polyurethane sponge is at 0.065 ~ 0.075g/cm
3, shore C hardness is 80 ~ 90.
4. scouring pad according to claim 1, is characterized in that,
The thickness of described ore in sand form layer is at 0.05 ~ 0.2 millimeter.
5. scouring pad according to claim 1, is characterized in that,
The grain number of the ore in sand form in described ore in sand form floor is P180 ~ P400.
6. scouring pad according to claim 1, is characterized in that,
Described nonwoven layer is bonded on described spongy layer by adhesive layer.
7. scouring pad according to claim 1, is characterized in that,
The thickness of described nonwoven layer is at 8 ~ 22mm.
8. scouring pad according to claim 1, is characterized in that,
Form the length of the fiber of described nonwoven layer at 15 ~ 100mm, rugosity is 2 ~ 200 points of Tekes, and crispation number is 7 ~ 13/25mm.
9. scouring pad according to claim 1, is characterized in that,
Described nonwoven layer is distributed with ore in sand form between the fleece gap away from spongy layer side.
10. scouring pad according to claim 9, is characterized in that,
Described nonwoven layer is distributed with ore in sand form near between the fleece gap of spongy layer side.
11. scouring pads according to claim 9 or 10, is characterized in that,
Ore in sand form grain number between the fiber gap of described nonwoven layer is P180 ~ P400.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520173579.1U CN204686683U (en) | 2015-03-26 | 2015-03-26 | Scouring pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520173579.1U CN204686683U (en) | 2015-03-26 | 2015-03-26 | Scouring pad |
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| Publication Number | Publication Date |
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| CN204686683U true CN204686683U (en) | 2015-10-07 |
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| CN201520173579.1U Expired - Fee Related CN204686683U (en) | 2015-03-26 | 2015-03-26 | Scouring pad |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856084A (en) * | 2016-04-12 | 2016-08-17 | 阳江市伟艺抛磨材料有限公司 | Environmentally friendly fiber polishing wheel and production technology thereof |
| CN106137089A (en) * | 2016-08-31 | 2016-11-23 | 南通爱华清洁用品有限公司 | A kind of self-drying type scouring pad |
| CN108251854A (en) * | 2018-02-23 | 2018-07-06 | 南京巨鲨显示科技有限公司 | A kind of surgical instrument derusting blast scouring pad and preparation method thereof |
-
2015
- 2015-03-26 CN CN201520173579.1U patent/CN204686683U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856084A (en) * | 2016-04-12 | 2016-08-17 | 阳江市伟艺抛磨材料有限公司 | Environmentally friendly fiber polishing wheel and production technology thereof |
| CN106137089A (en) * | 2016-08-31 | 2016-11-23 | 南通爱华清洁用品有限公司 | A kind of self-drying type scouring pad |
| CN108251854A (en) * | 2018-02-23 | 2018-07-06 | 南京巨鲨显示科技有限公司 | A kind of surgical instrument derusting blast scouring pad and preparation method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 |
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| CF01 | Termination of patent right due to non-payment of annual fee |