CN1664186A - Antibacterial viscose fiber and process for making same - Google Patents

Abstract

This invention refers to antibacterial mucilage glue fiber and preparation method. This antibacterial mucilage glue fiber takes nature aloe gel antimicrobial. Mucilage fiber filature liquid constitute of mucilage glue fiber screw former liquid and nature aloe gel. Nature aloe gel accession quantity is about mucilage glue fiber filature former liquid 1%-10%. The preparation method include hereinafter step: (1) disperse the nature aloe gel, get nature aloe gel accession quantity which grain diameter is less than 0.1um. (2) Let the nature aloe gel accession about 1%-10% rate of mucilage glue fiber join in the mucilage glue fiber filature former liquid, then filature spin as common wet method molding and get antibacterial mucilage glue fiber. The fiber germproof function is permanence, no side effect to human and has obvious change in antibacterial capability and biology capability .In this method, technics is simple and fit to industrialization produce.

Description

A kind of antibacterial viscose fiber and preparation method thereof

Technical field

The present invention relates to a kind of antibacterial viscose fiber and preparation method thereof.

Background technology

Viscose is as the common chemical fibre, it is good to have sucting wet air permeability, wear comparatively comfortable characteristics, but along with the raising of people's living standard and the change of philosophy of life, the viscose textiles is needed badly in the backward situation of technology aspect antibiotic property, the bio-compatibility and technology and is improved.

The quality of the antibacterial effect of antibacterial fiber product is inseparable with its employed antiseptic kind.Antiseptic divides three major types substantially, i.e. natural antibacterial agent, organic antibacterial agent and inorganic antiseptic.The organic antibacterial agent restraining and sterilizing bacteria rapidly, efficient, but human body is had side effect, bacterium easily produces drug resistance, and poor in timeliness, non-refractory; Natural antibacterial agent and inorganic antiseptic have antibiotic efficient, and human body safety is had no side effect, and bacterium does not produce advantages such as drug resistance, therefore are subject to people's attention day by day in application.

In the viscose spinning process, once there was technology to attempt viscose being carried out modification, disclosed 3 kinds respectively with the manufacture method of shitosan as the viscose of antibacterial activity component as Chinese patent CN1266922A, CN1280215A and CN1390991A with super fine micro granular chitosan.Its manufacture method is will shitosan to join in the spinning solution through after a series of processing, routinely wet spinning technology spinning and getting; Chinese patent CN1381620A then disclose with bamboo wood this as the antibacterial activity component, with bamboo wood through one be the reason physico-chemical process handle obtain spinning solution after the manufacture method that forms of spinning.

Chinese patent CN1401831A discloses a kind of functional rayon staple that contains nano-powder material, it is that the nano-powder material that will have correlation function evenly is blended in the artificial viscose solution carrier, through spray processing such as silk and the functional artificial viscose that human skin is had regulating action of formation, its antibacterial activity component is crude tourmaline powder and the Zinc oxide powder of particle diameter less than 100nm.

It is antibiotic bactericide with the nano particle that Chinese patent CN1442518A discloses a kind of, prepares the method for anti-bacterial fibre with the solvent spinning method.The used nano particle of the present invention is for waiting the natural crystal of processing gained through pulverizing, as zeolite, very ice stone, its particle diameter is 100～300nm, also can be synthetic metal oxide, as zinc oxide, titanium oxide, cuprous oxide and metal sulfide, as copper sulfide, cuprous sulfide, chromic sulfide, ferrous sulfide etc., its particle diameter is 5～150nm.Above-mentioned in addition nano particle can also carry out surface depositions such as silver, copper and coat, to strengthen the antibiotic property of product.

Aloe gel is as a kind of plant extraction liquid with natural antibacterial; application in every field has in recent years obtained significant progress; its good antibacterial property, bio-compatibility, and make it all have special advantages in a lot of fields to the protective effect of human body skin.

Summary of the invention

The purpose of this invention is to provide a kind of antibacterial viscose fiber, it is an antiseptic with the aloe gel, and this fiber antibacterial functions is lasting, human body is had no side effect, and having significant change aspect anti-microbial property and the bio-compatible performance.

Another object of the present invention provides the preparation method of this antibacterial viscose fiber, and this method technology is simple, is fit to suitability for industrialized production.

Technical scheme of the present invention is:

A kind of antibacterial viscose fiber is characterized in that, is antiseptic with the aloe gel, and the viscose spinning solution is made up of viscose spinning dope and aloe coagulant liquid, and aloe gel addition is 1%～10% of a viscose spinning dope quality.

A kind of preparation method of antibacterial viscose fiber is characterized in that, this method comprises the steps:

(1) the aloe coagulant liquid is disperseed, obtain the aloe gel annex solution of particle diameter less than 0.1 μ m;

(2) ratio of aloe gel annex solution with viscose spinning dope quality 1%～10% joined in the viscose spinning dope, wet spinning sprays the silk technological forming routinely then, obtains antibacterial viscose fiber.

Aloe coagulant liquid among the present invention can prepare by following method: selects Fresh leaf of aloe for use, carefully mesophyll separated with epidermis earlier, and the eucaryotic cell structure of as far as possible not touching the aloin layer; Then, from mesophyll, squeeze out gel juice, and gel juice is carried out the degerming of normal temperature film handle, to guarantee its effect; Aloe gel juice removes pigment through normal temperature film separation processing technique, to keep the steady in a long-term of its flavor pool and to keep the bioactive ingredients of aloe to greatest extent.Owing to contain a large amount of moisture in the aloe Normal juice, often need remove part moisture in actual use, it is concentrated, obtain the aloe coagulant liquid.The ratio of the quality after the aloe coagulant liquid that sell the market normally concentrates preceding quality and concentrates according to it is represented.For example, represent that then this aloe coagulant liquid is (10: 1) with 10kg aloe gel Normal juice simmer down to 1kg.

The dispersion of aloe coagulant liquid comprises following process and mode:

(1) the pre-dispersed stage

The pre-dispersed stage is mainly used multiple modes such as high shear stirring, ultrasonic dispersing, colloid mill.The main purpose in this stage is to reduce the granularity of gel, with bulky grain refinement wherein.In this dispersion stage, can use high-pressure homogeneous mode, the average grain diameter of aloe gel is reduced once more, the homogenizer pressure in this stage can be controlled at 50～100MPa.

(2) the nanofiltration stage

Aloe gel behind the homogeneous is used the ultra-filtration filters mode earlier, remove wherein fiber, macromolecular particle, select suitable NF membrane again for use, the aloe gel is carried out nanofiltration filter, obtain the aloe coagulant liquid of average grain diameter less than 0.1 μ m.

The aloe gel is joined in the spinning solution,, can obtain antibacterial viscose fiber through conventional wet spinning spray silk technological forming.Antibacterial viscose fiber provided by the invention is to be antiseptic with the aloe gel, and the viscose spinning solution is made up of viscose spinning dope and aloe coagulant liquid, and aloe gel addition is 1%～10% of a viscose spinning dope quality.

Suitable viscose spinning dope of the present invention comprises the viscose stoste in sulfonation process or the maturation, and its fiber quality mark is 5%～20%.The ratio of aloe coagulant liquid after disperseing with viscose spinning dope quality 1%～10% joined in the viscose spinning dope, leave standstill vacuum row bubble after the two high speed dispersion, wet spinning sprays the silk technological forming routinely then, obtains antibacterial viscose fiber.

Conventional wet spinning spray silk technology mainly may further comprise the steps:

Stoste pan feeding-spinning head is weaved silk-coagulating bath-godet roller-hot water wash-boiling water stretching-coiling-washing-dry heat typing.

Beneficial effect

Antibacterial viscose fiber provided by the invention, its antibacterial functions is lasting, human body is had no side effect, and having significant change aspect anti-microbial property and the bio-compatible performance; Its preparation method technology is simple, and production cost is low, and the cycle is short, is fit to suitability for industrialized production.

The specific embodiment

The present invention is further illustrated below in conjunction with specific embodiment.

Comparative Examples 1

Get the fiber quality mark and be 9% viscose spinning dope, a wet spinning spray silk technological forming obtains viscose routinely.Survey its fibre property, see Table 1.

Comparative Examples 2

Get the fiber quality mark and be 5% viscose spinning dope, a wet spinning spray silk technological forming obtains viscose routinely.Survey its fibre property, see Table 2.

Comparative Examples 3

Get the fiber quality mark and be 20% viscose spinning dope, a wet spinning spray silk technological forming obtains viscose routinely.Survey its fibre property, see Table 3.

Embodiment 1

Get 500g aloe gel (10: 1), ultrasonic dispersing 10min, the control temperature of charge is 50 ℃ in the dispersion process; The material that to handle carries out homogeneous and handles then, and pressure remains on 80MPa, homogeneous 3 times, during to keep temperature of charge be 50 ℃, the material behind the homogeneous carries out nanofiltration again to be handled, and obtains the aloe gel annex solution of average grain diameter less than 0.1 μ m.

The aloe gel annex solution that makes is joined in the viscose spinning dope in (the fiber quality mark is 9%) with the ratio of viscose spinning dope quality 1%, leave standstill vacuum row bubble after the high speed dispersion, wet spinning spray silk technological forming obtains antibacterial viscose fiber routinely.Survey its fibre property, see Table 1.

Embodiment 2

Get 500g aloe gel (1: 1), ultrasonic dispersing 20min, the control temperature of charge is 40 ℃ in the dispersion process; The material that to handle carries out homogeneous and handles then, and pressure remains on 50MPa, homogeneous 5 times, during to keep temperature of charge be 40 ℃, the material behind the homogeneous carries out nanofiltration again to be handled, and obtains the aloe gel annex solution of average grain diameter less than 0.1 μ m.

The aloe gel annex solution that makes is joined in the viscose spinning dope in (the fiber quality mark is 5%) with the ratio of viscose spinning dope quality 5%, leave standstill vacuum row bubble after the high speed dispersion, wet spinning spray silk technological forming obtains antibacterial viscose fiber routinely.Survey its fibre property, see Table 1.

Embodiment 3

Get 500g aloe gel (5: 1), ultrasonic dispersing 25min, the control temperature of charge is 50 ℃ in the dispersion process; The material that to handle carries out homogeneous and handles then, and pressure remains on 100MPa, homogeneous 4 times, during to keep temperature of charge be 50 ℃, the material behind the homogeneous carries out nanofiltration again to be handled, and obtains the aloe gel annex solution of average grain diameter less than 0.1 μ m.

The aloe gel annex solution that makes is joined in the viscose spinning dope in (the fiber quality mark is 20%) with the ratio of viscose spinning dope quality 10%, leave standstill vacuum row bubble after the high speed dispersion, wet spinning spray silk technological forming obtains antibacterial viscose fiber routinely.Survey its fibre property, see Table 1.

Table 1 fibre property table

Embodiment	Aloe gel mass fraction (%) in the fiber	Fiber number (d)	Dry strength (g/d)	Wet strength (g/d)	Flexural strength (g/d)	Extension at break (%)	Whiteness (%)
								Comparative Examples 1	??0	??3.21	??2.51	??1.70	??1.51	??55.5	??85
Embodiment 1	??1	??3.18	??2.50	??1.72	??1.48	??54.3	??90
								Comparative Examples 2	??0	??1.21	??4.56	??3.76	??2.03	??56.4	??85
Embodiment 2	??5	??1.19	??4.58	??3.69	??2.15	??59.6	??93
								Comparative Examples 3	??0	??3.20	??2.53	??1.72	??1.49	??55.3	??85
Embodiment 3	??10	??3.23	??2.49	??1.69	??1.50	??55.1	??96

As can be seen from Table 1, every indexs such as the intensity of blended fiber do not reduce because of sneaking into the aloe gel fiber, and the whiteness optimization of fiber has more advantage in the aftertreatment technology of fiber.

The sample that obtains among the embodiment 1,2,3 is washed respectively and do not wash antibacterial tests, the results are shown in Table 2.

Table 2 antibacterial viscose fiber antibacterial tests is table as a result

Embodiment	Aloe gel mass fraction (%) in the fiber	Do not wash sample antibiotic property testing result	Sample anti-microbial property testing result after washing 5 times
				Embodiment 1	????1	Positive	Positive
Embodiment 2	????5	Positive	Positive
				Embodiment 3	????10	Positive	Positive

As can be seen from Table 2, aloe gel quality affects mark is 1%～10% o'clock in the blend regenerated fiber, and the blend regenerated fiber all has antibiotic property.

The sample that obtains among the embodiment 1,2,3 is carried out degradation test respectively, the results are shown in Table 3.

Table 3 antibacterial viscose fiber degradation test is table as a result

Embodiment	Aloe gel mass fraction (%) in the fiber	Do not wash sample degradation testing result (%)		Sample degradation testing result (%) after washing 5 times
						To NH 3Degraded	To H 2The degraded of S	To NH 3Degraded	To H 2The degraded of S
		Embodiment 1	??1	??75.1	??60.3					??74.8	??60.1
Embodiment 2	??5					??79.3	??65.3	??78.4	??64.3
		Embodiment 3	??10	??81.2	??69.1					??79.5	??68.0

As can be seen from Table 3, aloe gel quality affects mark is 1%～10% o'clock in the blend regenerated fiber, and the blend regenerated fiber all has good degradability.

From above test result as can be seen, the fiber that adds aloe gel does not reduce aspect strength character, and the normal use of fiber is not formed influence; Aspect whiteness, the fiber that adds the aloe gel obviously is better than un-added fiber, and also has superiority aspect feel; The anti-microbial property aspect, the fiber of interpolation aloe gel is along with the increase anti-microbial property of addition increases to some extent, and degradability also increases to some extent, and fiber is after washing 5 times respectively, and anti-microbial property and degradability are unaffected, do not influence the normal use of fiber.

Claims (2)

1. an antibacterial viscose fiber is characterized in that, is antiseptic with the aloe gel, and the viscose spinning solution is made up of viscose spinning dope and aloe coagulant liquid, and aloe gel addition is a viscose spinning dope quality 1%～10%.

2. the preparation method of the described antibacterial viscose fiber of claim 1 is characterized in that, this method comprises the steps:

(1) the aloe coagulant liquid is disperseed, obtain the aloe gel annex solution of particle diameter less than 0.1 μ m;

(2) ratio of aloe gel annex solution with viscose spinning dope quality 1%～10% joined in the viscose spinning dope, wet spinning sprays the silk technological forming routinely then, obtains antibacterial viscose fiber.