CN110937228A - Cylindrical multi-needle packaging box for sterilization and disinfection - Google Patents
Cylindrical multi-needle packaging box for sterilization and disinfection Download PDFInfo
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- CN110937228A CN110937228A CN201911350392.3A CN201911350392A CN110937228A CN 110937228 A CN110937228 A CN 110937228A CN 201911350392 A CN201911350392 A CN 201911350392A CN 110937228 A CN110937228 A CN 110937228A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/23—Solid substances, e.g. granules, powders, blocks, tablets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
- B65D25/10—Devices to locate articles in containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D51/00—Closures not otherwise provided for
- B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
- B65D53/02—Collars or rings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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Abstract
The invention discloses a cylindrical multi-needle packaging box with sterilization and disinfection functions, which comprises a needle bag box body, wherein a cover plate is arranged at the position of the front end face of the needle bag box body, a fixed needle box is arranged at the position of the inner side of the needle bag box body, a needle box cover plate is arranged at the position of the top face of the fixed needle box, the fixed needle box and the needle box cover plate are both made of hard materials, a fixed groove is arranged at the position of the front end face of the fixed needle box, a reinforcing plate is arranged at the position of the right side face of the needle box cover plate, a scraping plate is arranged at the position of the bottom face of the reinforcing plate, more than two through holes are arranged at the position of the left side face of the needle bag box body, and; this device has set up fixed needle box and needle box apron in the inboard, can guarantee not to harm in the transportation, and secondly more convenient when the needle takes out, after the needle finishes using, abandons the shell, and inside fixed needle box can also fully disinfect, continues to use.
Description
Technical Field
The invention relates to a cylindrical multi-needle packaging box for sterilization and disinfection.
Background
The injection needle is usually put into the packing carton and is preserved, and traditional injection packing carton is the carton, separates through the paper baffle between the injection, but this kind of packing carton compressive capacity is extremely poor, must gently take in the transportation put and take strict safeguard measure, and the injection needle of inboard will be damaged carelessly a little, based on above-mentioned problem, need provide the packing carton of a solution problem.
Disclosure of Invention
The invention aims to solve the technical problem of providing a cylindrical multi-needle packaging box for sterilization and disinfection.
The invention is realized by the following technical scheme:
the utility model provides a cylindrical many needles packing carton of sterilization, includes needle package box body, the position department of terminal surface is provided with the apron before the needle package box body, the inboard position department of needle package box body is provided with fixed needle box, the position department of fixed needle box top surface is provided with needle box apron, fixed needle box with needle box apron is harder material, the position department of terminal surface is provided with the fixed slot before the fixed needle box, position department between the fixed slot all is provided with the partition limit, the position of needle box apron right flank is provided with the reinforcing plate, the position department of reinforcing plate bottom surface is provided with the scraper blade, the scraper blade cooperation sets up in the fixed slot, the position department of needle package box body left surface is provided with more than two through holes, the through hole with the fixed slot is corresponding.
Preferably, a buckle groove is formed in the position, close to the left side, of the front end face of the cover plate, and a seal is arranged at the position outside the buckle groove.
Preferably, the length of the needle box cover plate is smaller than that of the fixed needle box, and a sterilized cotton ball is arranged at the position, located on the right side face of the needle box cover plate, of the fixed groove.
Preferably, a protective film is arranged in each through hole.
Preferably, two first catching grooves are formed in the front end face of the needle box cover plate.
The needle box fixing cover plate and the needle box cover plate are both made of polylactic acid/polypropylene composite materials, and the polylactic acid/polypropylene composite materials are prepared from the following raw materials in parts by weight: 40-60 parts of polylactic acid, 15-25 parts of polypropylene, 10-20 parts of modified starch, 8-12 parts of shell powder, 5-10 parts of plant fiber and 1-3 parts of epoxidized soybean oil.
The plant fiber is prepared by the following method, wherein the parts are all by weight:
(1) drying wheat straw at 40-60 deg.C to constant weight, pulverizing, and sieving with 20-80 mesh sieve to obtain coarse powder;
(2) mixing 10-20 parts of coarse powder, 1-5 parts of sulfanilic acid and 30-50 parts of 4-8 wt% sodium hydroxide aqueous solution, stirring at 45-55 ℃ for 50-60 minutes at 300 revolutions per minute of 100-;
(3) adding 8-12 parts of alkali-treated straw fiber into 80-100 parts of 20-30 wt% urea aqueous solution to prepare suspension, stirring at 40-50 ℃ for 8-12 minutes at 300 revolutions per minute, standing at 20-30 ℃ for 40-60 minutes, filtering by using 500-mesh filter cloth, and drying a filter cake at 40-60 ℃ to constant weight to obtain the plant fiber.
The modified starch is prepared by the following method, wherein the parts are all by weight:
(1) mixing 20-30 parts of corn starch and 60-100 parts of water, adding α -amylase accounting for 0.02-0.2% of the mass of the corn starch, stirring at the temperature of 65-75 ℃ for 10-15 minutes at 300 revolutions/minute, and stirring at the temperature of 95-105 ℃ for 2-5 minutes at 300 revolutions/minute to obtain degradation liquid;
(2) adding 0.1-0.2g of emulsifier into the degradation liquid, stirring for 1-3 minutes at 100-80 ℃ and 300 revolutions/minute, adding 3-6 parts of butyl acrylate and 1-3 parts of methyl methacrylate, stirring for 10-20 minutes at 70-80 ℃ and 100-300 revolutions/minute, dropwise adding 1-3 parts of 5-10 wt% potassium persulfate aqueous solution at 1 drop/second speed, stirring for 1-3 hours at 70-80 ℃ and 100-300 revolutions/minute after dropwise adding, introducing nitrogen for protection in the reaction process, performing suction filtration by using a 0.45 mu m nylon membrane after the reaction is finished, washing a filter cake for 1-3 times by using 40-60 parts of water, drying to constant weight at 65-85 ℃, grinding, and sieving by using a 100-300-mesh sieve to obtain grafted starch;
(3) mixing 20-30 parts of grafted starch and 60-100 parts of water, stirring for 5-10 minutes at 300 revolutions per minute of 100 plus materials, adding 4-8g of modifier, adjusting the pH to 5-6 by using a 5% citric acid aqueous solution, stirring for 2-4 hours at 300 revolutions per minute of 100 plus materials at 40-60 ℃, performing suction filtration by using a 0.45 mu m nylon membrane after the reaction is finished, drying a filter cake to constant weight at 65-85 ℃, grinding, and sieving by using a 100 plus materials 300 meshes sieve to obtain the modified starch.
The emulsifier is one of alkylphenol polyoxyethylene and tween 20.
The modifier is rosmarinic acid and/or caffeic acid.
Preferably, the modifier is a mixture of the rosmarinic acid and the caffeic acid, and the mass ratio of the rosmarinic acid to the caffeic acid is (1-5): 1.
the polylactic acid/polypropylene composite material is prepared by the following method: weighing polylactic acid, polypropylene, modified starch, plant fiber and shell powder according to the weight parts, stirring the modified starch, the plant fiber and the shell powder at the temperature of between 20 and 30 ℃ at the speed of 500-1000 r/min for 20 to 30 minutes, adding the polylactic acid and the polypropylene, stirring at 180 ℃ at 500 ℃ for 20-30 minutes at 1000 rpm for 170 ℃ to obtain a mixture, introducing the mixture into a double-screw extruder, adding epoxidized soybean oil, melting and granulating to obtain granules, wherein the temperature of the first zone is 140-.
The working principle of the invention is as follows:
the cover plate is firstly opened, then the needle box cover plate is opened, then the needle head to be conveyed is placed into the fixing groove, then the needle box cover plate is covered, and the disinfection cotton ball is placed at the position where the fixing groove is vacant, finally the cover plate is covered, the package is completed, and because the inner side of the needle box cover plate is made of hard materials, the package can reduce the damage in the transportation process, when the needle box is required to be used, the seal strip is taken down, then the cover plate is opened by utilizing the buckling groove, then the needle box cover plate slides leftwards, so that the protective film is broken by the inner needle head, the protective film is exposed, then the surface is disinfected by the disinfection cotton ball, then the needle tube is directly connected, the needle head is slowly pulled out to be used, after the use is finished, the needle box cover plate and the fixing needle box on the inner side are disinfected, and the needle box can.
The invention has the beneficial effects that: this device has set up fixed needle box and needle box apron in the inboard, can guarantee not to harm in the transportation, and secondly more convenient when the needle takes out, after the needle finishes using, abandons the shell, and inside fixed needle box can also fully disinfect, continues to use, and the structure of this device is comparatively simple, and the cost is comparatively cheap, is fit for using widely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic view of a keyway;
FIG. 3 is an internal schematic view of the present invention;
FIG. 4 is a schematic view of a through hole;
fig. 5 is a bottom view of the needle magazine cover.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Alkylphenol ethoxylates, CAS number: 14409-72-4, an alkylphenol ethoxylate of model OP-8 from Dow, USA.
Butyl acrylate, CAS No.: 141-32-2.
Methyl methacrylate, CAS No.: 80-62-6.
Potassium persulfate, CAS number: 7727-21-1.
Polylactic acid with 4032D trade name from NatureWorks is adopted.
As the polypropylene, a polypropylene having a trade name of HJ730Y was used.
Sulfanilic acid, CAS number: 121-57-3.
The corn starch is edible corn starch in Chinese food trade.
The shell powder is calcined shell powder produced by a manufacturer of a Cibotian Huawei mineral product in Lingshou county, and is 800 meshes.
Epoxidized soybean oil, CAS No.: 8013-07-8, and is prepared from vinpocetine epoxy soybean oil, model B-22.
Rosmarinic acid, CAS No.: 20283-92-5, available from Shanghai-derived leaf Biotech, Inc.
Caffeic acid, CAS No.: 331-39-5, purchased from Shanghai-derived leaf Biotech, Inc.
Example 1
A sterilized and sterilized cylindrical multi-needle packing box as shown in fig. 1 to 5, comprises a needle packing box body 1, a cover plate 101 is arranged at the position of the front end surface of the needle packet box body 1, a fixed needle box 2 is arranged at the position of the inner side of the needle packet box body 1, a needle box cover plate 201 is arranged at the position of the top surface of the fixed needle box 2, the fixed needle box 2 and the needle box cover plate 201 are both made of hard materials, fixing grooves 202 are arranged at the positions of the front end surface of the fixed needle box 2, separating edges 203 are arranged at the positions among the fixing grooves 202, a reinforcing plate 204 is arranged at the right side of the needle box cover plate 201, a scraping plate 205 is arranged at the bottom of the reinforcing plate 204, the scraping plate 205 is disposed in the fixing groove 202 in a matching manner, two or more through holes 102 are disposed at the left side of the needle pack case 1, and the through holes 102 correspond to the fixing groove 202.
In a preferred embodiment of the present invention, a fastening groove 103 is disposed at a position close to the left side of the front end surface of the cover plate 101, and a seal 104 is disposed at a position outside the fastening groove 103.
In a preferred embodiment of the present invention, the length of the needle box cover 201 is less than the length of the fixed needle box 2, and the fixed groove 202 is provided with a sterilized cotton ball 206 at the position of the right side of the needle box cover 201.
In a preferred embodiment of the present invention, the through holes 102 are all provided with a protective film 105.
In a preferred embodiment of the present invention, two first catching grooves 207 are disposed at the front end of the needle box cover 201.
Example 2
A sterilized and sterilized cylindrical multi-needle packing box as shown in fig. 1 to 5, comprises a needle packing box body 1, a cover plate 101 is arranged at the position of the front end surface of the needle packet box body 1, a fixed needle box 2 is arranged at the position of the inner side of the needle packet box body 1, a needle box cover plate 201 is arranged at the position of the top surface of the fixed needle box 2, the fixed needle box 2 and the needle box cover plate 201 are both made of hard materials, fixing grooves 202 are arranged at the positions of the front end surface of the fixed needle box 2, separating edges 203 are arranged at the positions among the fixing grooves 202, a reinforcing plate 204 is arranged at the right side of the needle box cover plate 201, a scraping plate 205 is arranged at the bottom of the reinforcing plate 204, the scraping plate 205 is disposed in the fixing groove 202 in a matching manner, two or more through holes 102 are disposed at the left side of the needle pack case 1, and the through holes 102 correspond to the fixing groove 202.
A buckling groove 103 is formed in the position, close to the left side, of the front end face of the cover plate 101, and a seal 104 is arranged at the position outside the buckling groove 103.
The length of the needle box cover plate 201 is less than that of the fixed needle box 2, and the fixed groove 202 is provided with a sterilized cotton ball 206 at the position of the right side surface of the needle box cover plate 201.
A protective film 105 is disposed in each through hole 102.
Two first catching grooves 207 are arranged at the front end face of the needle box cover plate 201.
The needle box fixing cover plate and the needle box cover plate are both made of polylactic acid/polypropylene composite materials, and the polylactic acid/polypropylene composite materials are prepared from the following raw materials in parts by weight: 50 parts of polylactic acid, 20 parts of polypropylene, 15 parts of modified starch, 10 parts of shell powder, 8 parts of vegetable fiber and 2 parts of epoxidized soybean oil.
The modified starch is prepared by the following method, wherein the parts are all by weight:
(1) mixing 25 parts of corn starch and 75 parts of water, adding α -amylase accounting for 0.08 percent of the mass of the corn starch, stirring for 12 minutes at 70 ℃ at 200 revolutions per minute, and stirring for 3 minutes at 100 ℃ at 200 revolutions per minute to obtain degradation liquid;
(2) adding 0.15g of emulsifier into the degradation liquid, stirring for 2 minutes at 200 revolutions per minute, adding 4 parts of butyl acrylate and 2 parts of methyl methylpropionate, stirring for 15 minutes at 75 ℃ at 200 revolutions per minute, dropwise adding 2 parts of 8 wt% potassium persulfate aqueous solution at the speed of 1 drop per second, stirring for 2 hours at 75 ℃ at 200 revolutions per minute after dropwise adding, introducing nitrogen for protection in the reaction process, performing suction filtration by using a 0.45 mu m nylon membrane after the reaction is finished, washing a filter cake for 2 times by using 50 parts of water, drying at 80 ℃ to constant weight, grinding, and sieving by using a 200-mesh sieve to obtain the modified starch.
The emulsifier is alkylphenol polyoxyethylene.
The plant fiber is prepared by the following method, wherein the parts are all by weight:
(1) drying wheat straw at 50 ℃ to constant weight, crushing, and sieving with a 40-mesh sieve to obtain coarse powder;
(2) mixing the coarse powder 15 parts and 6 wt% sodium hydroxide aqueous solution 40 parts, stirring at 50 deg.C at 200 rpm for 60 minutes, filtering with 500 mesh filter cloth, washing the filter cake with water until the washing liquid is neutral, and drying at 50 deg.C to constant weight to obtain plant fiber.
The polylactic acid/polypropylene composite material is prepared by the following method: weighing polylactic acid, polypropylene, modified starch, plant fiber and shell powder according to parts by weight, stirring the modified starch, the plant fiber and the shell powder at 25 ℃ for 25 minutes at 800 revolutions per minute, adding the polylactic acid and the polypropylene, stirring at 175 ℃ for 25 minutes at 800 revolutions per minute to obtain a mixture, introducing the mixture into a double-screw extruder, adding epoxidized soybean oil, melting and granulating to obtain granules, wherein the temperature of a first zone is 145 ℃, the temperature of a second zone is 170 ℃, the temperature of a third zone is 175 ℃, the temperature of a fourth zone is 165 ℃, the rotation speed of a screw is 250 revolutions per minute, then carrying out injection molding on the granules at 175 ℃ according to the required specification, and the temperature of a mold during injection molding is 125 ℃ to obtain the polylactic acid/polypropylene composite material.
Example 3
Essentially the same as example 2, except that:
the needle box fixing cover plate and the needle box cover plate are both made of polylactic acid/polypropylene composite materials, and the polylactic acid/polypropylene composite materials are prepared from the following raw materials in parts by weight: 50 parts of polylactic acid, 20 parts of polypropylene, 15 parts of modified starch, 10 parts of shell powder, 8 parts of vegetable fiber and 2 parts of epoxidized soybean oil.
The modified starch is prepared by the following method, wherein the parts are all by weight:
(1) mixing 25 parts of corn starch and 75 parts of water, adding α -amylase accounting for 0.08 percent of the mass of the corn starch, stirring for 12 minutes at 70 ℃ at 200 revolutions per minute, and stirring for 3 minutes at 100 ℃ at 200 revolutions per minute to obtain degradation liquid;
(2) adding 0.15g of emulsifier into the degradation liquid, stirring for 2 minutes at 200 revolutions per minute, adding 4 parts of butyl acrylate and 2 parts of methyl methylpropionate, stirring for 15 minutes at 75 ℃ at 200 revolutions per minute, dropwise adding 2 parts of 8 wt% potassium persulfate aqueous solution at the speed of 1 drop per second, stirring for 2 hours at 75 ℃ at 200 revolutions per minute after dropwise adding, introducing nitrogen for protection in the reaction process, performing suction filtration by using a 0.45 mu m nylon membrane after the reaction is finished, washing a filter cake for 2 times by using 50 parts of water, drying at 80 ℃ to constant weight, grinding, and sieving by using a 200-mesh sieve to obtain the modified starch.
The emulsifier is alkylphenol polyoxyethylene.
The plant fiber is prepared by the following method, wherein the parts are all by weight:
(1) drying wheat straw at 50 ℃ to constant weight, crushing, and sieving with a 40-mesh sieve to obtain coarse powder;
(2) mixing the coarse powder 15 parts, sulfanilic acid 2 parts and 6 wt% sodium hydroxide aqueous solution 40 parts, stirring at 50 ℃ for 60 minutes at 200 rpm, filtering with 500-mesh filter cloth, washing a filter cake with water until the washing liquid is neutral, and drying at 50 ℃ to constant weight to obtain the plant fiber.
The polylactic acid/polypropylene composite material is prepared by the following method: weighing polylactic acid, polypropylene, modified starch, plant fiber and shell powder according to parts by weight, stirring the modified starch, the plant fiber and the shell powder at 25 ℃ for 25 minutes at 800 revolutions per minute, adding the polylactic acid and the polypropylene, stirring at 175 ℃ for 25 minutes at 800 revolutions per minute to obtain a mixture, introducing the mixture into a double-screw extruder, adding epoxidized soybean oil, melting and granulating to obtain granules, wherein the temperature of a first zone is 145 ℃, the temperature of a second zone is 170 ℃, the temperature of a third zone is 175 ℃, the temperature of a fourth zone is 165 ℃, the rotation speed of a screw is 250 revolutions per minute, then carrying out injection molding on the granules at 175 ℃ according to the required specification, and the temperature of a mold during injection molding is 125 ℃ to obtain the polylactic acid/polypropylene composite material.
Example 4
Essentially the same as example 2, except that:
the needle box fixing cover plate and the needle box cover plate are both made of polylactic acid/polypropylene composite materials, and the polylactic acid/polypropylene composite materials are prepared from the following raw materials in parts by weight: 50 parts of polylactic acid, 20 parts of polypropylene, 15 parts of modified starch, 10 parts of shell powder, 8 parts of vegetable fiber and 2 parts of epoxidized soybean oil.
The modified starch is prepared by the following method, wherein the parts are all by weight:
(1) mixing 25 parts of corn starch and 75 parts of water, adding α -amylase accounting for 0.08 percent of the mass of the corn starch, stirring for 12 minutes at 70 ℃ at 200 revolutions per minute, and stirring for 3 minutes at 100 ℃ at 200 revolutions per minute to obtain degradation liquid;
(2) adding 0.15g of emulsifier into the degradation liquid, stirring for 2 minutes at 200 revolutions per minute, adding 4 parts of butyl acrylate and 2 parts of methyl methylpropionate, stirring for 15 minutes at 75 ℃ at 200 revolutions per minute, dropwise adding 2 parts of 8 wt% potassium persulfate aqueous solution at the speed of 1 drop per second, stirring for 2 hours at 75 ℃ at 200 revolutions per minute after dropwise adding, introducing nitrogen for protection in the reaction process, performing suction filtration by using a 0.45 mu m nylon membrane after the reaction is finished, washing a filter cake for 2 times by using 50 parts of water, drying at 80 ℃ to constant weight, grinding, and sieving by using a 200-mesh sieve to obtain the modified starch.
The emulsifier is alkylphenol polyoxyethylene.
The plant fiber is prepared by the following method, wherein the parts are all by weight:
(1) drying wheat straw at 50 ℃ to constant weight, crushing, and sieving with a 40-mesh sieve to obtain coarse powder;
(2) mixing 15 parts of coarse powder, 2 parts of sulfanilic acid and 40 parts of 6 wt% sodium hydroxide aqueous solution, stirring at 50 ℃ for 60 minutes at 200 revolutions per minute, filtering by adopting 500-mesh filter cloth, washing a filter cake by using water until washing liquor is neutral, and drying at 50 ℃ to constant weight to obtain alkali-treated straw fiber;
(3) adding 10 parts of alkali-treated straw fiber into 90 parts of 25 wt% urea aqueous solution to prepare suspension, stirring at 45 ℃ for 10 minutes at 200 rpm, standing at 25 ℃ for 60 minutes, filtering by using 500-mesh filter cloth, and drying a filter cake at 50 ℃ to constant weight to obtain the plant fiber.
The polylactic acid/polypropylene composite material is prepared by the following method: weighing polylactic acid, polypropylene, modified starch, plant fiber and shell powder according to parts by weight, stirring the modified starch, the plant fiber and the shell powder at 25 ℃ for 25 minutes at 800 revolutions per minute, adding the polylactic acid and the polypropylene, stirring at 175 ℃ for 25 minutes at 800 revolutions per minute to obtain a mixture, introducing the mixture into a double-screw extruder, adding epoxidized soybean oil, melting and granulating to obtain granules, wherein the temperature of a first zone is 145 ℃, the temperature of a second zone is 170 ℃, the temperature of a third zone is 175 ℃, the temperature of a fourth zone is 165 ℃, the rotation speed of a screw is 250 revolutions per minute, then carrying out injection molding on the granules at 175 ℃ according to the required specification, and the temperature of a mold during injection molding is 125 ℃ to obtain the polylactic acid/polypropylene composite material.
Comparative example 1
Essentially the same as example 2, except that:
the needle box fixing cover plate and the needle box cover plate are both made of polylactic acid/polypropylene composite materials, and the polylactic acid/polypropylene composite materials are prepared from the following raw materials in parts by weight: 50 parts of polylactic acid, 20 parts of polypropylene, 15 parts of modified starch, 10 parts of shell powder, 8 parts of vegetable fiber and 2 parts of epoxidized soybean oil.
The modified starch is prepared by the following method, wherein the parts are all by weight:
(1) mixing 25 parts of corn starch and 75 parts of water, and stirring at 85 ℃ at 200 rpm for 30 minutes to obtain gelatinized starch;
(2) adding 0.15g of emulsifier into gelatinized starch, stirring for 2 minutes at 200 revolutions per minute, adding 4 parts of butyl acrylate and 2 parts of methyl methylpropionate, stirring for 15 minutes at 75 ℃ at 200 revolutions per minute, dropwise adding 2 parts of 8 wt% potassium persulfate aqueous solution at the speed of 1 drop per second, stirring for 2 hours at 75 ℃ at 200 revolutions per minute after dropwise adding, introducing nitrogen for protection in the reaction process, performing suction filtration by using a 0.45 mu m nylon membrane after the reaction is finished, washing a filter cake for 2 times by using 50 parts of water, drying at 80 ℃ to constant weight, grinding, and sieving by using a 200-mesh sieve to obtain the modified starch.
The emulsifier is alkylphenol polyoxyethylene.
The plant fiber is prepared by the following method, wherein the parts are all by weight:
(1) drying wheat straw at 50 ℃ to constant weight, crushing, and sieving with a 40-mesh sieve to obtain coarse powder;
(2) mixing 15 parts of coarse powder, 2 parts of sulfanilic acid and 40 parts of 6 wt% sodium hydroxide aqueous solution, stirring at 50 ℃ for 60 minutes at 200 revolutions per minute, filtering by adopting 500-mesh filter cloth, washing a filter cake by using water until washing liquor is neutral, and drying at 50 ℃ to constant weight to obtain alkali-treated straw fiber;
(3) adding 10 parts of alkali-treated straw fiber into 90 parts of 25 wt% urea aqueous solution to prepare suspension, stirring at 45 ℃ for 10 minutes at 200 rpm, standing at 25 ℃ for 60 minutes, filtering by using 500-mesh filter cloth, and drying a filter cake at 50 ℃ to constant weight to obtain the plant fiber.
The polylactic acid/polypropylene composite material is prepared by the following method: weighing polylactic acid, polypropylene, modified starch, plant fiber and shell powder according to parts by weight, stirring the modified starch, the plant fiber and the shell powder at 25 ℃ for 25 minutes at 800 revolutions per minute, adding the polylactic acid and the polypropylene, stirring at 175 ℃ for 25 minutes at 800 revolutions per minute to obtain a mixture, introducing the mixture into a double-screw extruder, adding epoxidized soybean oil, melting and granulating to obtain granules, wherein the temperature of a first zone is 145 ℃, the temperature of a second zone is 170 ℃, the temperature of a third zone is 175 ℃, the temperature of a fourth zone is 165 ℃, the rotation speed of a screw is 250 revolutions per minute, then carrying out injection molding on the granules at 175 ℃ according to the required specification, and the temperature of a mold during injection molding is 125 ℃ to obtain the polylactic acid/polypropylene composite material.
Example 5
Essentially the same as example 2, except that:
the needle box fixing cover plate and the needle box cover plate are both made of polylactic acid/polypropylene composite materials, and the polylactic acid/polypropylene composite materials are prepared from the following raw materials in parts by weight: 50 parts of polylactic acid, 20 parts of polypropylene, 15 parts of modified starch, 10 parts of shell powder, 8 parts of vegetable fiber and 2 parts of epoxidized soybean oil.
The modified starch is prepared by the following method, wherein the parts are all by weight:
(1) mixing 25 parts of corn starch and 75 parts of water, adding α -amylase accounting for 0.08 percent of the mass of the corn starch, stirring for 12 minutes at 70 ℃ at 200 revolutions per minute, and stirring for 3 minutes at 100 ℃ at 200 revolutions per minute to obtain degradation liquid;
(2) adding 0.15g of emulsifier into the degradation liquid, stirring for 2 minutes at 200 revolutions per minute, adding 4 parts of butyl acrylate and 2 parts of methyl methylpropionate, stirring for 15 minutes at 75 ℃ at 200 revolutions per minute, dropwise adding 2 parts of 8 wt% potassium persulfate aqueous solution at the speed of 1 drop per second, stirring for 2 hours at 75 ℃ at 200 revolutions per minute after dropwise adding, introducing nitrogen for protection in the reaction process, performing suction filtration by using a 0.45 mu m nylon membrane after the reaction is finished, washing a filter cake for 2 times by using 50 parts of water, drying at 80 ℃ to constant weight, grinding, and sieving by using a 200-mesh sieve to obtain grafted starch;
(3) mixing 25 parts of grafted starch and 75 parts of water, stirring for 8 minutes at 200 rpm, adding 6g of modifier, adjusting the pH to 5.5 by using 5% citric acid aqueous solution, stirring for 3 hours at 50 ℃ at 200 rpm, performing suction filtration by using a 0.45-micron nylon membrane after the reaction is finished, drying a filter cake to constant weight at 80 ℃, grinding, and sieving by using a 200-mesh sieve to obtain the modified starch.
The emulsifier is alkylphenol polyoxyethylene.
The modifier is rosmarinic acid.
The plant fiber is prepared by the following method, wherein the parts are all by weight:
(1) drying wheat straw at 50 ℃ to constant weight, crushing, and sieving with a 40-mesh sieve to obtain coarse powder;
(2) mixing 15 parts of coarse powder, 2 parts of sulfanilic acid and 40 parts of 6 wt% sodium hydroxide aqueous solution, stirring at 50 ℃ for 60 minutes at 200 revolutions per minute, filtering by adopting 500-mesh filter cloth, washing a filter cake by using water until washing liquor is neutral, and drying at 50 ℃ to constant weight to obtain alkali-treated straw fiber;
(3) adding 10 parts of alkali-treated straw fiber into 90 parts of 25 wt% urea aqueous solution to prepare suspension, stirring at 45 ℃ for 10 minutes at 200 rpm, standing at 25 ℃ for 60 minutes, filtering by using 500-mesh filter cloth, and drying a filter cake at 50 ℃ to constant weight to obtain the plant fiber.
The polylactic acid/polypropylene composite material is prepared by the following method: weighing polylactic acid, polypropylene, modified starch, plant fiber and shell powder according to parts by weight, stirring the modified starch, the plant fiber and the shell powder at 25 ℃ for 25 minutes at 800 revolutions per minute, adding the polylactic acid and the polypropylene, stirring at 175 ℃ for 25 minutes at 800 revolutions per minute to obtain a mixture, introducing the mixture into a double-screw extruder, adding epoxidized soybean oil, melting and granulating to obtain granules, wherein the temperature of a first zone is 145 ℃, the temperature of a second zone is 170 ℃, the temperature of a third zone is 175 ℃, the temperature of a fourth zone is 165 ℃, the rotation speed of a screw is 250 revolutions per minute, then carrying out injection molding on the granules at 175 ℃ according to the required specification, and the temperature of a mold during injection molding is 125 ℃ to obtain the polylactic acid/polypropylene composite material.
Example 6
Essentially the same as example 2, except that:
the needle box fixing cover plate and the needle box cover plate are both made of polylactic acid/polypropylene composite materials, and the polylactic acid/polypropylene composite materials are prepared from the following raw materials in parts by weight: 50 parts of polylactic acid, 20 parts of polypropylene, 15 parts of modified starch, 10 parts of shell powder, 8 parts of vegetable fiber and 2 parts of epoxidized soybean oil.
The modified starch is prepared by the following method, wherein the parts are all by weight:
(1) mixing 25 parts of corn starch and 75 parts of water, adding α -amylase accounting for 0.08 percent of the mass of the corn starch, stirring for 12 minutes at 70 ℃ at 200 revolutions per minute, and stirring for 3 minutes at 100 ℃ at 200 revolutions per minute to obtain degradation liquid;
(2) adding 0.15g of emulsifier into the degradation liquid, stirring for 2 minutes at 200 revolutions per minute, adding 4 parts of butyl acrylate and 2 parts of methyl methylpropionate, stirring for 15 minutes at 75 ℃ at 200 revolutions per minute, dropwise adding 2 parts of 8 wt% potassium persulfate aqueous solution at the speed of 1 drop per second, stirring for 2 hours at 75 ℃ at 200 revolutions per minute after dropwise adding, introducing nitrogen for protection in the reaction process, performing suction filtration by using a 0.45 mu m nylon membrane after the reaction is finished, washing a filter cake for 2 times by using 50 parts of water, drying at 80 ℃ to constant weight, grinding, and sieving by using a 200-mesh sieve to obtain grafted starch;
(3) mixing 25 parts of grafted starch and 75 parts of water, stirring for 8 minutes at 200 rpm, adding 6g of modifier, adjusting the pH to 5.5 by using 5% citric acid aqueous solution, stirring for 3 hours at 50 ℃ at 200 rpm, performing suction filtration by using a 0.45-micron nylon membrane after the reaction is finished, drying a filter cake to constant weight at 80 ℃, grinding, and sieving by using a 200-mesh sieve to obtain the modified starch.
The emulsifier is alkylphenol polyoxyethylene.
The modifier is theacaffeic acid.
The plant fiber is prepared by the following method, wherein the parts are all by weight:
(1) drying wheat straw at 50 ℃ to constant weight, crushing, and sieving with a 40-mesh sieve to obtain coarse powder;
(2) mixing 15 parts of coarse powder, 2 parts of sulfanilic acid and 40 parts of 6 wt% sodium hydroxide aqueous solution, stirring at 50 ℃ for 60 minutes at 200 revolutions per minute, filtering by adopting 500-mesh filter cloth, washing a filter cake by using water until washing liquor is neutral, and drying at 50 ℃ to constant weight to obtain alkali-treated straw fiber;
(3) adding 10 parts of alkali-treated straw fiber into 90 parts of 25 wt% urea aqueous solution to prepare suspension, stirring at 45 ℃ for 10 minutes at 200 rpm, standing at 25 ℃ for 60 minutes, filtering by using 500-mesh filter cloth, and drying a filter cake at 50 ℃ to constant weight to obtain the plant fiber.
The polylactic acid/polypropylene composite material is prepared by the following method: weighing polylactic acid, polypropylene, modified starch, plant fiber and shell powder according to parts by weight, stirring the modified starch, the plant fiber and the shell powder at 25 ℃ for 25 minutes at 800 revolutions per minute, adding the polylactic acid and the polypropylene, stirring at 175 ℃ for 25 minutes at 800 revolutions per minute to obtain a mixture, introducing the mixture into a double-screw extruder, adding epoxidized soybean oil, melting and granulating to obtain granules, wherein the temperature of a first zone is 145 ℃, the temperature of a second zone is 170 ℃, the temperature of a third zone is 175 ℃, the temperature of a fourth zone is 165 ℃, the rotation speed of a screw is 250 revolutions per minute, then carrying out injection molding on the granules at 175 ℃ according to the required specification, and the temperature of a mold during injection molding is 125 ℃ to obtain the polylactic acid/polypropylene composite material.
Example 7
Essentially the same as example 2, except that:
the needle box fixing cover plate and the needle box cover plate are both made of polylactic acid/polypropylene composite materials, and the polylactic acid/polypropylene composite materials are prepared from the following raw materials in parts by weight: 50 parts of polylactic acid, 20 parts of polypropylene, 15 parts of modified starch, 10 parts of shell powder, 8 parts of vegetable fiber and 2 parts of epoxidized soybean oil.
The modified starch is prepared by the following method, wherein the parts are all by weight:
(1) mixing 25 parts of corn starch and 75 parts of water, adding α -amylase accounting for 0.08 percent of the mass of the corn starch, stirring for 12 minutes at 70 ℃ at 200 revolutions per minute, and stirring for 3 minutes at 100 ℃ at 200 revolutions per minute to obtain degradation liquid;
(2) adding 0.15g of emulsifier into the degradation liquid, stirring for 2 minutes at 200 revolutions per minute, adding 4 parts of butyl acrylate and 2 parts of methyl methylpropionate, stirring for 15 minutes at 75 ℃ at 200 revolutions per minute, dropwise adding 2 parts of 8 wt% potassium persulfate aqueous solution at the speed of 1 drop per second, stirring for 2 hours at 75 ℃ at 200 revolutions per minute after dropwise adding, introducing nitrogen for protection in the reaction process, performing suction filtration by using a 0.45 mu m nylon membrane after the reaction is finished, washing a filter cake for 2 times by using 50 parts of water, drying at 80 ℃ to constant weight, grinding, and sieving by using a 200-mesh sieve to obtain grafted starch;
(3) mixing 25 parts of grafted starch and 75 parts of water, stirring for 8 minutes at 200 rpm, adding 6g of modifier, adjusting the pH to 5.5 by using 5% citric acid aqueous solution, stirring for 3 hours at 50 ℃ at 200 rpm, performing suction filtration by using a 0.45-micron nylon membrane after the reaction is finished, drying a filter cake to constant weight at 80 ℃, grinding, and sieving by using a 200-mesh sieve to obtain the modified starch.
The emulsifier is alkylphenol polyoxyethylene.
The modifier is a mixture of rosmarinic acid and caffeic acid, and the mass ratio of the rosmarinic acid to the caffeic acid is 3: 1.
the plant fiber is prepared by the following method, wherein the parts are all by weight:
(1) drying wheat straw at 50 ℃ to constant weight, crushing, and sieving with a 40-mesh sieve to obtain coarse powder;
(2) mixing 15 parts of coarse powder, 2 parts of sulfanilic acid and 40 parts of 6 wt% sodium hydroxide aqueous solution, stirring at 50 ℃ for 60 minutes at 200 revolutions per minute, filtering by adopting 500-mesh filter cloth, washing a filter cake by using water until washing liquor is neutral, and drying at 50 ℃ to constant weight to obtain alkali-treated straw fiber;
(3) adding 10 parts of alkali-treated straw fiber into 90 parts of 25 wt% urea aqueous solution to prepare suspension, stirring at 45 ℃ for 10 minutes at 200 rpm, standing at 25 ℃ for 60 minutes, filtering by using 500-mesh filter cloth, and drying a filter cake at 50 ℃ to constant weight to obtain the plant fiber.
The polylactic acid/polypropylene composite material is prepared by the following method: weighing polylactic acid, polypropylene, modified starch, plant fiber and shell powder according to parts by weight, stirring the modified starch, the plant fiber and the shell powder at 25 ℃ for 25 minutes at 800 revolutions per minute, adding the polylactic acid and the polypropylene, stirring at 175 ℃ for 25 minutes at 800 revolutions per minute to obtain a mixture, introducing the mixture into a double-screw extruder, adding epoxidized soybean oil, melting and granulating to obtain granules, wherein the temperature of a first zone is 145 ℃, the temperature of a second zone is 170 ℃, the temperature of a third zone is 175 ℃, the temperature of a fourth zone is 165 ℃, the rotation speed of a screw is 250 revolutions per minute, then carrying out injection molding on the granules at 175 ℃ according to the required specification, and the temperature of a mold during injection molding is 125 ℃ to obtain the polylactic acid/polypropylene composite material.
The working principle of the invention is as follows:
the cover plate is firstly opened, then the needle box cover plate is opened, then the needle head to be conveyed is placed into the fixing groove, then the needle box cover plate is covered, and the disinfection cotton ball is placed at the position where the fixing groove is vacant, finally the cover plate is covered, the package is completed, and because the inner side of the needle box cover plate is made of hard materials, the package can reduce the damage in the transportation process, when the needle box is required to be used, the seal strip is taken down, then the cover plate is opened by utilizing the buckling groove, then the needle box cover plate slides leftwards, so that the protective film is broken by the inner needle head, the protective film is exposed, then the surface is disinfected by the disinfection cotton ball, then the needle tube is directly connected, the needle head is slowly pulled out to be used, after the use is finished, the needle box cover plate and the fixing needle box on the inner side are disinfected, and the needle box can.
The invention has the beneficial effects that: this device has set up fixed needle box and needle box apron in the inboard, can guarantee not to harm in the transportation, and secondly more convenient when the needle takes out, after the needle finishes using, abandons the shell, and inside fixed needle box can also fully disinfect, continues to use, and the structure of this device is comparatively simple, and the cost is comparatively cheap, is fit for using widely.
Test example 1
The polylactic acid/polypropylene composite material obtained in the embodiment is tested for tensile strength and elongation at break according to the test method of GB/T1040.2-2006, and tested for bending strength according to the method of GB/T9341-2008.
Specific results are shown in table 1.
Table 1 mechanical properties test results table
| Tensile strength, MPa | Elongation at break,% | Flexural strength, MPa | |
| Example 2 | 31.6 | 266 | 42.4 |
| Example 3 | 33.2 | 284 | 44.2 |
| Example 4 | 36.4 | 303 | 46.9 |
| Comparative example 1 | 24.8 | 225 | 33.1 |
| Example 5 | 38.5 | 327 | 48.3 |
| Example 6 | 38.0 | 316 | 47.6 |
| Example 7 | 42.6 | 385 | 52.8 |
Test example 2
The examples and comparative examples were combined to giveThe degradation performance of the polylactic acid/polypropylene composite material is tested, and the specific test method is that the polylactic acid/polypropylene composite material is made into a sample with the mass of m and the sample is 100mm multiplied by 50mm multiplied by 5mm1Burying the container in 30cm underground, taking out after 60 days, cleaning, oven drying, and weighing to obtain m2The degradation rate was calculated as follows:
degradation rate (m)1-m2)/m1×100％
The specific results are shown in Table 2.
TABLE 2 degradation Rate test results Table
Test example 3
The polylactic acid/polypropylene composite materials obtained in the examples and the comparative examples were tested for antibacterial properties according to QB/T2591-.
Table 3 bacteriostatic ratio test result table
| Escherichia coli ratio, percent | Staphylococcus aureus,% | |
| Example 2 | 84.3 | 83.2 |
| Example 3 | 89.4 | 88.6 |
| Example 4 | 91.8 | 90.5 |
| Comparative example 1 | 85.6 | 84.9 |
| Example 5 | 95.4 | 94.8 |
| Example 6 | 94.8 | 94.1 |
| Example 7 | 99.1 | 98.6 |
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (7)
1. The utility model provides a cylindrical many needles packing carton of disinfection and sterilization which characterized in that: including the needle package box body, the position department of terminal surface is provided with the apron before the needle package box body, the inboard position department of needle package box body is provided with fixed needle box, the position department of fixed needle box top surface is provided with the needle box apron, fixed needle box with the needle box apron is harder material, the position department of terminal surface is provided with the fixed slot before the fixed needle box, position department between the fixed slot all is provided with the partition limit, the position of needle box apron right flank is provided with the reinforcing plate, the position department of reinforcing plate bottom surface is provided with the scraper blade, the scraper blade cooperation sets up in the fixed slot, the position department of needle package box body left surface is provided with the through hole more than two, the through hole with the fixed slot is corresponding.
2. The sterilized and sterilized cylindrical multi-needle cartridge as set forth in claim 1, wherein: the cover plate is characterized in that a buckling groove is formed in the position, close to the left side, of the front end face of the cover plate, and a sealing strip is arranged at the position outside the buckling groove.
3. The sterilized and sterilized cylindrical multi-needle cartridge as set forth in claim 1, wherein: the length of the needle box cover plate is smaller than that of the fixed needle box, and a sterilized cotton ball is arranged at the position, located on the right side face of the needle box cover plate, of the fixed groove.
4. The sterilized and sterilized cylindrical multi-needle cartridge as set forth in claim 1, wherein: and protective films are arranged in the through holes.
5. The sterilized and sterilized cylindrical multi-needle cartridge as set forth in claim 1, wherein: two first catching grooves are formed in the position of the front end face of the needle box cover plate.
6. The sterilized and sterilized cylindrical multi-needle cartridge as set forth in claim 1, wherein: the needle box fixing cover plate and the needle box cover plate are both made of polylactic acid/polypropylene composite materials, and the polylactic acid/polypropylene composite materials are prepared from the following raw materials in parts by weight: 40-60 parts of polylactic acid, 15-25 parts of polypropylene, 10-20 parts of modified starch, 8-12 parts of shell powder, 5-10 parts of plant fiber and 1-3 parts of epoxidized soybean oil.
7. The sterilized and sterilized cylindrical multi-needle cartridge as set forth in claim 6, wherein: the plant fiber is prepared by the following method, wherein the parts are all by weight:
(1) drying wheat straw at 40-60 deg.C to constant weight, pulverizing, and sieving with 20-80 mesh sieve to obtain coarse powder;
(2) mixing 10-20 parts of coarse powder, 1-5 parts of sulfanilic acid and 30-50 parts of 4-8 wt% sodium hydroxide aqueous solution, stirring at 45-55 ℃ for 50-60 minutes at 300 revolutions per minute of 100-;
(3) adding 8-12 parts of alkali-treated straw fiber into 80-100 parts of 20-30 wt% urea aqueous solution to prepare suspension, stirring at 40-50 ℃ for 8-12 minutes at 300 revolutions per minute, standing at 20-30 ℃ for 40-60 minutes, filtering by using 500-mesh filter cloth, and drying a filter cake at 40-60 ℃ to constant weight to obtain the plant fiber.
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| US5853087A (en) * | 1996-11-13 | 1998-12-29 | Groz Beckert Kg | Packing receptacle, particularly for sewing machine needles |
| CN2486501Y (en) * | 2001-05-23 | 2002-04-17 | 林创立 | Package box for pencil core |
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