CN103710778B - A kind of core-skin type natural antibacterial, ultraviolet proof polypropylene fiber - Google Patents

A kind of core-skin type natural antibacterial, ultraviolet proof polypropylene fiber Download PDF

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CN103710778B
CN103710778B CN201310714215.5A CN201310714215A CN103710778B CN 103710778 B CN103710778 B CN 103710778B CN 201310714215 A CN201310714215 A CN 201310714215A CN 103710778 B CN103710778 B CN 103710778B
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sandwich layer
component
skin
polypropylene
weight
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CN103710778A (en
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陆建益
王礼胜
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SHAOXING DONGSHENGJING TEXTILE GARMENT Co Ltd
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SHAOXING DONGSHENGJING TEXTILE GARMENT Co Ltd
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Abstract

The present invention provides a kind of core-skin type natural antibacterial, ultraviolet proof polypropylene fiber, including sandwich layer and cortex, and sandwich layer is not exposed by cortex is fully wrapped around, the component of described cortex is polypropylene, the component of sandwich layer is plant extract and polyacrylic mixture, plant extract weight accounts for the 35��65% of sandwich layer component weight, and it is 70��35: 30��65 that polypropylene weight accounts for the weight ratio of the 35��65% of sandwich layer component weight, cortex component and sandwich layer component. Thereby, plant extract can be effectively prevented to scatter and disappear in storage, the course of processing, its antimicrobial efficiency is high, Transdermal absorption ability is strong, skin affinity is good, and the direct skin contact of human body, with regard to can be formed human body is carried out antibacterial, anti-ultraviolet while slowly release nutritional labeling and absorbed by skin, realize the perfect adaptation of fiber and skin-protective body-fit, health care, be beneficial to human body and obtain more health benefit. And waste resource recycling, contain huge society, ecology, environment and economic benefit.

Description

A kind of core-skin type natural antibacterial, ultraviolet proof polypropylene fiber
Technical field
The invention belongs to polypropylene fibre field, particularly relate to a kind of core-skin type natural antibacterial, ultraviolet proof polypropylene fiber.
Background technology
Polypropylene fibre (polypropylenefiber) is commonly called as polypropylene, and it is to be made, by propylene, the fiber that raw material is aggregated, melt spinning is prepared. Because of its abundant raw material source, cheap, production technology is simple, light weight is soft and has good characteristics such as leading wet, perspiration wicking, warmth retention property, anti-mould and anti-moth, it is widely used in dress ornament, decoration and industry articles for use, particularly it is prone to be made into woven fabric, looped fabric with natural fiber or chemical fibre blending, is particularly suitable for and manufactures the textile that underwear, T-shirt, socks, sheet etc. directly contact with human body skin. But owing to polypropylene fibre itself does not have antibacterial functions, becoming easily infected by the various dirts in various human secretion and environment with human body skin when contacting, the invasive organism such as breed bacteria, long-term accumulated is enriched with, and the healthy of human body can be produced harm.
For these reasons, in recent years, the report of the fungistatic effect that the process of employing antibacterial improves polypropylene fibre is very active. Antibacterial kind for polypropylene fibre is a lot, and it mainly includes inorganic antiseptic, organic antibacterial agent and natural antibacterial agent. And inorganic antiseptic and organic antibacterial agent day by day feel a draft because of its known or potential toxic and side effects. The antimicrobial component that natural antibacterial agent is contained from natural plants extracts, and has excellent biocompatibility, antimicrobial long-acting and the advantage such as have no side effect safe to the human body, is increasingly subject to the attention of people in the application. But it also has a fatal weakness, anti-bacterial fibre is once molding, and natural antibacterial agent will continue to overflow in post-treatment, storage process, cause waste, and effect reduces. And function singleness, substantially it is short of in the health protections such as uvioresistant, the blood circulation of promotion subcutaneous capillary, the enhancement nutrition of skin, delay skin aging and raising immunity, seriously constrains the further of polypropylene fibre industry and develop.
Armeniaca mume Sieb. (Prunusmume), also known as " fruit prunus mume (sieb.) sieb.et zucc. " etc., belongs to rose department cherry genus plant, is distributed widely in the ground such as China Zhejiang, Guangxi and Yunnan.Armeniaca mume Sieb. is Medicine Food Homology fruit, and its each position, except having different edibilities, also has medicinal and health-care components. Medicine monograph Shennong's Herbal describes the flower of Armeniaca mume Sieb., branch, leaf in effect pharmaceutically; Compendium of Material Medica record " prunus mume (sieb.) sieb.et zucc., taste is the sourest, has the therapeutic method to keep the adverse QI flowing downwards to feel at ease, and quenches the thirst, antitussive, pain relieving, cure the wound cold dysphoria with smothery sensation, cold and hot dysentery, subduing swelling and detoxicating effect "; In useful Armeniaca mume Sieb. leaf sterilizing among the people, the custom for the treatment of hepatitis and extraction Chinese medicine Borneolum Syntheticum. The chemical composition of Armeniaca mume Sieb. platymiscium has been studied by Chinese scholars, mainly obtain the compound [Chen Guangying etc. such as white hellebore alcohols, triterpenes, isocoumarin class, " chemical composition of Armeniaca mume Sieb. platymiscium and Advance on Pharmacological Activities " " Hainan Normal University's journal " natural science edition .2008,21 (6): 180-182]. Modern study finds, containing nonpolarity element long chain alkane, polyene, vitamin E, plant sterol, Squalene and triterpenoid compound in flower of Armeniaca mume Sieb., branch, leaf, organic acid [the Zhao Lerong etc. such as polar component flavone, polyphenol, Saponin and apple acid, tartaric acid, ascorbic acid, citric acid, succinic acid and chlorogenic acid, " plum extract progress " " Chinese Medicine science " 2012,3 (2): 41-42].
Semen Granati is the kind core of Punicaceae Punica granatum L., account for the 20% of Punica granatum L. weight, containing rich in protein, ash, lignanoid, polyphenol, terpenoid, flavonoid, steroid class, phospholipid, triglyceride, fatty acid, punicic acid and ferrum, copper, manganese, zinc, chromium, selenium and other trace elements. wherein, Polyphenol includes elladitannin, Galla Turcica (Galla Helepensis) tannin, ellagic acid, gallic acid, catechin, anthocyanidin, the multiple compounds such as chlorogenic acid and quercetin, it is a kind of natural strong oxidizer and antibacterial, after being absorbed by the body, contribute to improving the joint elastic force of human body and skin elasticity, strengthening tremulous pulse, the function of vein and blood capillary, strengthen human vas wall intensity and improve blood circulation, skin opposing free radical and the injury of collagen digestive enzyme can be helped, prevent the too early wrinkle of skin occurred because skin elasticity runs off from being formed and assisting in keeping skin smooth, histamine releasing can also be suppressed, stress ulcer and arterial injury, to dermatophytes, the multiple pathogenic bacteria such as antibacterial has inhibitory action in various degree.
In daily life, Armeniaca mume Sieb. branch and leaf, Semen Granati broadly fall into discarded thing, are allowed to contaminated environment. In recent years, Armeniaca mume Sieb. branch and leaf, Semen Granati exploitation medicine, food, health product are utilized gradually to become focus with the research of cosmetics. But still find no Armeniaca mume Sieb. branch and leaf so far, both Semen Granatis organically combine and are implanted in polypropylene to make that core-skin type is antibacterial, the precedent of uvioresistant fiber, also have no bibliographical information.
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to provide a kind of core-skin type natural antibacterial, ultraviolet proof polypropylene fiber, storing, the course of processing can effectively prevent plant extract to scatter and disappear, its antimicrobial efficiency is high, Transdermal absorption ability is strong, skin affinity is good, direct skin contact with human body, often human body is carried out antibacterial with regard to being formed, anti-ultraviolet slowly release the approach that nutritional labeling is absorbed by skin simultaneously, realize fiber and skin-protective body-fit, the perfect adaptation of health care, it is beneficial to human body and obtains more health benefit, and garbage is fully used, solve environmental issue.
For reaching above-mentioned purpose, the present invention is achieved by the following technical solutions:
A kind of core-skin type natural antibacterial, ultraviolet proof polypropylene fiber, including sandwich layer and cortex, and sandwich layer is not exposed by cortex is fully wrapped around, it is characterized in that, the component of described cortex is polypropylene, and the component of sandwich layer is plant extract and polyacrylic mixture, and described plant extract weight accounts for the 35��65% of sandwich layer component weight, it is 70��35: 30��65 that polypropylene weight accounts for the weight ratio of the 35��65% of sandwich layer component weight, described cortex component and sandwich layer component;
Described plant extract is to be mixed by the Armeniaca mume Sieb. branch and leaf powder of weight percentage 53%, the Semen Granati powder of 39% and the shea butter of 8%;
Described Armeniaca mume Sieb. branch and leaf powder adopts following methods to prepare: gathers Armeniaca mume Sieb. branch and leaf, roguing, cleans, dries to water content 3��5%, be broken into 20��50 order fragments, put in extraction kettle, pass into the CO of 30��35MPa2, at 50��65 DEG C of temperature, circulate dynamic extraction 2.5 hours, decompression separation, separation temperature 35��45 DEG C, separating pressure 3��5MPa, obtain leaf slag and nonpolarity element; Then in leaf slag, add the ethanol that volume ratio is 25%��50% of leaf slag weight 3��20 times, extract 2 hours by 70��85 DEG C of temperature, filter, filtrate distills to obtain polar component under 65��75 DEG C of conditions, this polar component and nonpolarity element mixing, spray drying, mortar finely ground mistake 150��200 mesh sieve, obtain Armeniaca mume Sieb. branch and leaf powder;
Described Semen Granati powder adopts following methods to prepare: gathers Semen Granati, roguing, cleans, dry, pulverize into the powder of 25��60 orders, be subsequently adding the alcohol reflux 2��4 times of powder 6��12 times amount 50%��95%, each extraction time is 0.5��2 hour, united extraction liquid, filters, and collects filtrate, concentrating under reduced pressure, spray drying, mortar finely ground mistake 150��200 mesh sieve, obtain Semen Granati powder.
The polypropylene fibre process route of the preparation present invention is essentially identical with the process route preparing existing core-sheath polypropylene fibre, mainly includes pelletize and composite spinning.
When pelletize, being added into the plant extract performance on polypropylene fibre has impact, and it not easily disperses in polypropylene matrix, it is easy to cause that toner is reunited, and very easily occurs waft silk, breakage phenomena in spinning process. Therefore, need to being added into appropriate molecular weight regulator, antioxidant, dispersant when pelletize, its adding technology and the pelletize spinning existing common core-sheath polypropylene fibre require it is identical, no longer repeat one by one herein.
Dispersant of the present invention is formed with Azelaic Acid is composite by polypropylene wax, its weight ratio is: polypropylene wax: Azelaic Acid=80��95: 5��20, the addition of dispersant is determined depending on the consumption of plant extract, and currently preferred addition is: plant extract: dispersant=1: 0.12��5.
Azelaic Acid in above-mentioned dispersant, also known as " azelaic acid ", for middle long-chain biatomic acid, is important organic synthesis intermediate. Molecular formula C9H16O4, molecular weight 188.22, proportion 1.0291 (4 DEG C), 1.225 (25 DEG C), fusing point: 106.5 DEG C of boiling points: 286.5 DEG C/178.3 DEG C. It is commonly used to synthesis dioctyl azelate (DOZ) plasticizer, is used to the products such as synthetic perfume, lubricating oil and polyamide, be also used to treatment acne, acne rosacea, chloasma and the too much disease of cutaneous pigmentation.
Applicant finds under study for action, polypropylene wax is composite with Azelaic Acid, too many levels works in coordination with onset, there is the good compatibility, good spinnability, Armeniaca mume Sieb. branch and leaf powder, Semen Granati powder and shea butter can be significantly improved in the finely dispersed effect of sandwich layer, improve fibre property, hence it is evident that reduce melt expansion rate and spinning break rate.
According to the present invention, fibrous polypropylene well known in the art selected by above-mentioned polypropylene, its melt index is 5��45g/10min, if using the polypropylene of low melt index, the mobile performance of its melt is poor, and spinning processing performance is bad, it is difficult to improve spinning speed, and using the polypropylene of high fusion index, then low-fiber physical and mechanical properties can drop.
According to the polypropylene fibre that the present invention produces, not only save to greatest extent general polypropylene fibers excellent lead the characteristics such as wet, perspiration wicking, warmth retention property, anti-mould and anti-moth, and the biological active substances being had by the raw materials such as Armeniaca mume Sieb. branch and leaf, Semen Granati, shea butter and Azelaic Acid and nutritive and health protection components are sufficiently introduced in polypropylene fibre, mutual organic infiltration, produce Synergistic, playing respective existing pharmacology, health-care effect, its mechanism of action is:
Skin is had stronger Transdermal absorption ability by plant sterol, can effectively facilitate skin metabolism, improves blood microcirculation, removes blood vessel and hoards thing and internal harmful substance, strengthen the immunity of Skin Cell, it is suppressed that scytitis etc. act on.
Squalene is good with cutaneous permeability, the oxygen carrying capacity of human body hemoglobin can be improved, enhance metabolism, suppress tyrosinase activity, effectively stop cause in human body skin damnification, short wave ultraviolet, allow again the ultraviolet of some physiological neeies to pass through, the biological function brought into normal play simultaneously.
Vitamin E have absorption ultraviolet ability, can sun-proof skin care, and can antiinflammatory, antipruritic, skin moistening, delay skin aging.
The natural nutrient that organic acid can enrich for skin conveying, to reducing melanic generation, improves and eliminates chloasma, keeps skin gloss and elasticity to play no small effect.
Saponin has two-ways regulation immunity, suppresses the peroxidating of skin lipid, contributes to skin from ultraviolet injury under powerful sunlight.
Punicic acid can prevent the too early wrinkle of skin occurred because skin elasticity runs off from being formed and assisting in keeping skin smooth, moreover it is possible to suppress histamine releasing, stress ulcer and arterial injury, the multiple pathogenic bacteria such as dermatophytes, antibacterial is had inhibitory action in various degree.
Tannin has antibacterial, antiviral, enzyme inhibition activity and antioxidation, mutation, antiinflammatory, anti-tumor activity, can reduce dermal melanin, black speck and freckle, make whitening skin.
Flavone has broad-spectrum antiseptic, antiinflammatory, antioxidation, absorption ultraviolet, suppresses the effects such as tyrosinase activity, it is possible to strengthens the nutrition supply of skin and the excretion of metabolite, effectively removes skin surface noxious bacteria, it is prevented that bacterial reproduction.
Polyphenol antioxidation, antimutagenic, aging resistance, bacteriostasis are extremely strong, can effectively stop the damage to cell membrane of cell membrane ester matter peroxidation that free radical causes, have a whitening and speckle dispelling, antiinflammatory, protectiving ultraviolet damage, promote the effect of skin metabolism.
Triterpenes has the advantages that short efficiency is high and the skin compatibility is good, it is possible to overcome skin barrier effect, promotes that functional component enters corium, subcutaneous tissue through epidermis, circulates even into body.
Procyanidin is natural sunlight overcover, can stop ultraviolet damage skin, it is suppressed that the activation of melanocyte, can suppress again the formation of free radical; Prevention lipid oxidation, makes maintenance skin smooth, high resilience, alleviates pigmentation, even eliminate cicatrix, dispelling stain, skin whitening.
Azelaic Acid can treat the too much disease of acne, chloasma and cutaneous pigmentation.
Shea butter is also referred to as Adeps Bovis seu Bubali resin, also the sub-fat of translations snow, it contains abundant non-saponified composition, have the advantages that short efficiency is high and the skin compatibility is good, skin barrier effect can be overcome, promoting that functional component enters corium, subcutaneous tissue through epidermis, circulating even into body, thus playing locally and systemically nursing role.Can not only prevent xerosis cutis from ftractureing, moreover it is possible to recover and keep the natural elasticity of skin further.
To sum up, being not difficult to find out that polypropylene fibre provided by the invention only need to add in sandwich layer due to functional component, can effectively prevent functional component to scatter and disappear in storage, the course of processing, long service life, production cost is low. And keeping having again while general polypropylene fibers premium properties the health-care effecies such as antibacterial, uvioresistant, sun-proof, deodorization, antipruritic, dispelling stain, beauty care. This fiber is made into knitting fabric or woven fabric, sewing underwear, underwear, nightwear, vest, T-shirt, glove, medicated cap, socks, bedding and the various textiles with contact human skin with any known method. Its skin affinity is good, Transdermal absorption ability is strong, directly contact with human body skin, with regard to can be formed often human body is carried out antibiotic ultraviolet-resistant while slowly release the approach that nutritional labeling is absorbed by skin, thus promoting the blood circulation of subcutaneous capillary, regulating human body skin physiological function, removing blood vessel and hoarding thing and internal harmful substance, reach activation histiocyte, delay skin aging and improve the purpose of immunity, it is achieved the perfect adaptation of fiber and skin-protective body-fit, health care. After tested: UPF value >=40 of this fiber, rate of ultraviolet shield reaches 92%; Staphylococcus aureus, escherichia coli, Candida albicans etc. are had stronger inhibitory action, and bacteriostasis rate is more than 75%. Its raw material sources are extensive, and garbage is fully used, and has both solved environmental issue, contain again huge society, ecology and economic benefit.
Detailed description of the invention
By the examples below the present invention is described in further detail.
In the present invention, if not refering in particular to, all of equipment, raw material and auxiliary agent etc. all can be buied from market or the industry is conventional, and all of percentage ratio, part are unit of weight.
Property indices in following example, all adopts following method of testing and standard:
One, anti-ultraviolet test: according to standard GB/T/T18830-2009 " evaluation of ultraviolet resistance of fabric ", use the UPF UPF and ultraviolet ray transmissivity T of U.S. Labsphere (blue luxuriant and rich with fragrance optics) UV-2000F yarn fabric SPF (sun protection factor) analyser test blend fabric. As UPF > 30, T (UVA) < 5% of fabric, this fabric belongs to anti-ultraviolet product.
Two, antibacterial test: testing according to the method for standard GB/T/20944.3-2008 " the evaluation third portion of antibacterial textile performance: succusion ", the anti-microbial property of sample is evaluated by bacteriostasis rate, and computing formula is:
XS=(A-B)/A
In formula: XSFor bacteriostasis rate (%); A is by average colony number before test agent vibration; B is average colony number after being vibrated by test agent, if the average colony number after vibration is more than the average colony number before vibration, bacteriostasis rate is by 0 calculating.
Embodiment one
1. pretreatment of raw material:
1. Armeniaca mume Sieb. branch and leaf powder is prepared: gather Armeniaca mume Sieb. branch and leaf, roguing, clean, dry to water content 3%, be broken into 35 order fragments, put in extraction kettle, pass into the CO of 30MPa2, at 55 DEG C of temperature, circulate dynamic extraction 2.5 hours, decompression separation, separation temperature 40 DEG C, separating pressure 5MPa, obtain leaf slag and nonpolarity element; Then in leaf slag, add the ethanol that volume ratio is 35% of leaf slag weight 6 times, extract 2 hours by 70 DEG C of temperature, filter, filtrate distills to obtain polar component, this polar component and nonpolarity element mixing, spray drying under 65 DEG C of conditions, mortar finely ground mistake 180 mesh sieve, obtains Armeniaca mume Sieb. branch and leaf powder;
2. Semen Granati powder is prepared: gather Semen Granati, roguing, clean, dry, pulverize into the powder of 50 orders, be subsequently adding the alcohol reflux 3 times of powder 9 times amount 45%, each extraction time is 1.5 hours, united extraction liquid, filters, and collects filtrate, concentrating under reduced pressure, spray drying, mortar finely ground mistake 180 mesh sieve, obtain Semen Granati powder.
2. composition of raw materials:
1. described polypropylene fibre includes cortex and sandwich layer, and the component of cortex is polypropylene, accounts for polypropylene fibre gross weight 35%; The component of sandwich layer is the mixture of polypropylene and plant extract, accounts for polypropylene fibre gross weight 65%.
2. in sandwich layer, described polypropylene accounts for sandwich layer gross weight 61.5%, and plant extract accounts for sandwich layer gross weight 38.5%.
3. above-mentioned plant extract is mixed by the Armeniaca mume Sieb. branch and leaf powder of weight percentage 53%, the Semen Granati powder of 39% and the shea butter of 8%.
4. dispersant is formed by the Azelaic Acid of the polypropylene wax of 87kg Yu 13kg is composite, and its addition is: (it is determined 19.25kg depending on the addition of plant extract, plant extract: dispersant=1: 0.12��5).
3. manufacturing process:
The polypropylene fibre technique of the preparation present invention mainly includes pelletize and composite spinning two parts.
1. pelletize: accurately weigh polypropylene 61.5kg by composition of raw materials, plant extract 38.5kg, dispersant 19.25kg add in impeller, stir 10 minutes under constant temperature, after period adds appropriate molecular weight regulator, antioxidant mixing, send into feed bin, controlling melt temperature at 220��240 DEG C, extrusion melted through twin screw, cooling, pelletizing obtain sandwich layer master batch.
2. spinning: accurately weigh above-mentioned obtained sandwich layer master batch 65kg, polypropylene 35kg by composition of raw materials and be respectively fed to feed bin and be dried, make moisture reach 180ppm. Then the technological process of conventional ripening is adopted, the polypropylene of the sandwich layer master batch of above-mentioned 65kg, 35kg is inputted double-component spinning composite box (spinning body temperature 250 DEG C), extruded by core/sheath spinneret after dosing pump measures, herein, two components contact with each other, cortex component is made here to complete the encirclement to sandwich layer component, obtain the core-skin type natural antibacterial health care of recipe requirements, ultraviolet proof polypropylene fiber, its fiber dimensious 110D/72f (filament number 1.5D), intensity is more than 2.5cN/dtex. This fiber weaves knitting fabric with any known method, makes underwear for men and women, underwear. After tested: UPF value 156, UVA transmitance 1.85%, the bacteriostasis rate 82.5% of the bacteriostasis rate 87.2% of staphylococcus aureus, colibacillary bacteriostasis rate 85.1%, Candida albicans.
Embodiment two
1. pretreatment of raw material:
1. Armeniaca mume Sieb. branch and leaf powder is prepared: gather Armeniaca mume Sieb. branch and leaf, roguing, clean, dry to water content 5%, be broken into 50 order fragments, put in extraction kettle, pass into the CO of 35Mpa2, at 50 DEG C of temperature, circulate dynamic extraction 2.5 hours, decompression separation, separation temperature 45 DEG C, separating pressure 3MPa, obtain leaf slag and nonpolarity element; Then in leaf slag, add the ethanol that volume ratio is 50% of leaf slag weight 12 times, extract 2 hours by 85 DEG C of temperature, filter, filtrate distills to obtain polar component, this polar component and nonpolarity element mixing, spray drying under 75 DEG C of conditions, mortar finely ground mistake 200 mesh sieve, obtains Armeniaca mume Sieb. branch and leaf powder;
2. Semen Granati powder is prepared: gather Semen Granati, roguing, clean, dry, pulverize into the powder of 35 orders, be subsequently adding the alcohol reflux 2 times of powder 7 times amount 50%, each extraction time is 2 hours, united extraction liquid, filters, and collects filtrate, concentrating under reduced pressure, spray drying, mortar finely ground mistake 200 mesh sieve, obtain Semen Granati powder.
2. composition of raw materials:
1. described polypropylene fibre includes cortex and sandwich layer, and the component of cortex is polypropylene, accounts for polypropylene fibre gross weight 40%, and the component of sandwich layer is the mixture of polypropylene and plant extract, accounts for polypropylene fibre gross weight 60%.
2. in sandwich layer, described polypropylene accounts for sandwich layer gross weight 42.5%, and plant extract accounts for sandwich layer gross weight 57.5%.
3. above-mentioned plant extract is to be mixed by the Armeniaca mume Sieb. branch and leaf powder of weight percentage 56.5%, the Semen Granati powder of 33.5% and the shea butter of 10%.
4. dispersant is formed by the Azelaic Acid of the polypropylene wax of 92kg Yu 8kg is composite, and its addition is: (it is determined 11.5kg depending on the addition of plant extract, plant extract: dispersant=1: 0.12��5).
3. manufacturing process:
The polypropylene fibre technique of the preparation present invention mainly includes pelletize and composite spinning two parts.
1. pelletize: accurately weigh polypropylene 42.5kg, plant extract 57.5kg by composition of raw materials, dispersant 11.5kg adds in impeller, stir 10 minutes under constant temperature, after period adds appropriate molecular weight regulator, antioxidant mixing, send into feed bin, controlling melt temperature at 220��240 DEG C, extrusion melted through twin screw, cooling, pelletizing obtain sandwich layer master batch.
2. spinning: accurately weigh above-mentioned obtained sandwich layer master batch 60kg, polypropylene 40kg by composition of raw materials and be respectively fed to feed bin and be dried, make moisture reach 160ppm. Then the technological process of conventional ripening is adopted, the polypropylene of the sandwich layer master batch of above-mentioned 65kg, 35kg is inputted double-component spinning composite box (spinning body temperature 250 DEG C), extruded by core/sheath spinneret after dosing pump measures, herein, two components contact with each other, cortex component is made here to complete the encirclement to sandwich layer component, obtain the core-skin type natural antibacterial health care of recipe requirements, ultraviolet proof polypropylene fiber, its fiber dimensious 75D/72f (filament number 1.0D), intensity is more than 3.0cN/dtex. Adopt and weave knitting fabric containing 65% this fiber and 35% are cotton, make underwear for men and women, underwear. After tested: UPF value 96, UVA transmitance 1.65%, the bacteriostasis rate 72.6% of the bacteriostasis rate 82.3% of staphylococcus aureus, colibacillary bacteriostasis rate 76.2%, Candida albicans.
Embodiment three
1. pretreatment of raw material:
1. Armeniaca mume Sieb. branch and leaf powder is prepared: gather Armeniaca mume Sieb. branch and leaf, roguing, clean, dry to water content 3.5%, be broken into 40 order fragments, put in extraction kettle, pass into the CO of 32MPa2, at 60 DEG C of temperature, circulate dynamic extraction 2.5 hours, decompression separation, separation temperature 40 DEG C, separating pressure 4MPa, obtain leaf slag and nonpolarity element; Then in leaf slag, add the ethanol that volume ratio is 25%% of leaf slag weight 7 times, extract 2 hours by 75 DEG C of temperature, filter, filtrate distills to obtain polar component, this polar component and nonpolarity element mixing, spray drying under 65 DEG C of conditions, mortar finely ground mistake 160 mesh sieve, obtains Armeniaca mume Sieb. branch and leaf powder;
2. Semen Granati powder is prepared: gather Semen Granati, roguing, clean, dry, pulverize into the powder of 45 orders, be subsequently adding the alcohol reflux 4 times of powder 10 times amount 55%, each extraction time is 0.5 hour, united extraction liquid, filters, and collects filtrate, concentrating under reduced pressure, spray drying, mortar finely ground mistake 160 mesh sieve, obtain Semen Granati powder.
2. composition of raw materials:
1. described polypropylene fibre includes cortex and sandwich layer, and the component of cortex is polypropylene, accounts for polypropylene fibre gross weight 45%, and the component of sandwich layer is the mixture of polypropylene and plant extract, accounts for polypropylene fibre gross weight 55%.
2. in sandwich layer, described polypropylene accounts for sandwich layer gross weight 38.5%, and plant extract accounts for sandwich layer gross weight 61.5%.
3. plant extract is to be mixed by the Armeniaca mume Sieb. branch and leaf powder of weight percentage 58.5%, the Semen Granati powder of 31% and the shea butter of 10.5%.
4. dispersant is formed by the Azelaic Acid of the polypropylene wax of 92kg Yu 8kg is composite, and its addition is: (it is determined 24.6kg depending on the addition of plant extract, plant extract: dispersant=1: 0.12��5).
3. manufacturing process:
The polypropylene fibre technique of the preparation present invention mainly includes pelletize and composite spinning two parts.
1. pelletize: accurately weigh polypropylene 38.5kg, plant extract 61.5kg by composition of raw materials, dispersant 24.6kg adds in impeller, stir 10 minutes under constant temperature, after period adds appropriate molecular weight regulator, antioxidant mixing, send into feed bin, controlling melt temperature at 220��240 DEG C, extrusion melted through twin screw, cooling, pelletizing obtain sandwich layer master batch.
2. spinning: accurately weigh above-mentioned obtained sandwich layer master batch 55kg by composition of raw materials, polypropylene 45kg is respectively fed to feed bin and is dried, moisture is made to reach 200ppm, then the technological process of conventional ripening is adopted, by the sandwich layer master batch of above-mentioned 55kg, polypropylene input double-component spinning composite box (spinning body temperature 250 DEG C) of 45kg, extruded by core/sheath spinneret after dosing pump measures, herein, two components contact with each other, cortex component is made here to complete the encirclement to sandwich layer component, obtain the core-skin type natural antibacterial health care of recipe requirements, ultraviolet proof polypropylene fiber, its fiber dimensious 35D/72f (filament number 0.5D), intensity is up to 3.5cN/dtex. or chinlon, spandex cotton containing 60% this fiber and 40% is adopted directly to be made into the local such as socks and protecting ware for sports and use product. after tested: UPF value 89, UVA transmitance 1.55%, the bacteriostasis rate 71.6% of the bacteriostasis rate 83.2% of staphylococcus aureus, colibacillary bacteriostasis rate 78.4%, Candida albicans.
By above-mentioned embodiment, though above-mentioned health-care effect is without strict clinical trial, but it is not difficult to know by inference according to Armeniaca mume Sieb. branch and leaf powder, Semen Granati powder, shea butter and the existing pharmacological experiments of Azelaic Acid.
Listed above is only specific embodiments of the invention. It is clear that the invention is not restricted to above example is sub, it is also possible to there are many deformation. All deformation that those of ordinary skill in the art can directly derive from present disclosure or associate, are all considered as protection scope of the present invention.

Claims (1)

1. a core-skin type natural antibacterial, ultraviolet proof polypropylene fiber, including sandwich layer and cortex, and sandwich layer is not exposed by cortex is fully wrapped around, it is characterized in that, the component of described cortex is polypropylene, and the component of sandwich layer is plant extract and polyacrylic mixture, and described plant extract weight accounts for the 35��65% of sandwich layer component weight, it is 70��35: 30��65 that polypropylene weight accounts for the weight ratio of the 35��65% of sandwich layer component weight, described cortex component and sandwich layer component;
Described plant extract is to be mixed by the Armeniaca mume Sieb. branch and leaf powder of weight percentage 53%, the Semen Granati powder of 39% and the shea butter of 8%;
Described Armeniaca mume Sieb. branch and leaf powder adopts following methods to prepare: gathers Armeniaca mume Sieb. branch and leaf, roguing, cleans, dries to water content 3��5%, be broken into 20��50 order fragments, put in extraction kettle, pass into the CO of 30��35MPa2, at 50��65 DEG C of temperature, circulate dynamic extraction 2.5 hours, decompression separation, separation temperature 35��45 DEG C, separating pressure 3��5MPa, obtain leaf slag and nonpolarity element;Then in leaf slag, add the ethanol that volume ratio is 25%��50% of leaf slag weight 3��20 times, extract 2 hours by 70��85 DEG C of temperature, filter, filtrate distills to obtain polar component under 65��75 DEG C of conditions, this polar component and nonpolarity element mixing, spray drying, mortar finely ground mistake 150��200 mesh sieve, obtain Armeniaca mume Sieb. branch and leaf powder;
Described Semen Granati powder adopts following methods to prepare: gathers Semen Granati, roguing, cleans, dry, pulverize into the powder of 25��60 orders, be subsequently adding the alcohol reflux 2��4 times of powder 6��12 times amount 45%��75%, each extraction time is 0.5��2 hour, united extraction liquid, filters, and collects filtrate, concentrating under reduced pressure, spray drying, mortar finely ground mistake 150��200 mesh sieve, obtain Semen Granati powder.
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