CN201395650Y - Antibacterial PET/PTT hollow fiber - Google Patents

Abstract

The utility model relates to an antibacterial PET/PTT hollow fiber. A spinneret plate is in hollow shape, and the cross section of the fiber is also in hollow shape; the ratio of the inner diameter and outer diameter of the fiber is 1:4, an antibacterial agent is a silver-loaded zirconium phosphate antibacterial agent, and the denier value of the fiber is within 1 to 3. The advantages of the antibacterial PET/PTT hollow fiber are as follows: the hollow fiber has good comfort performance and good dyeing effect; the hollow fiber has the most important characteristics of small density and strongwarm-keeping performance; the antibacterial agent has the characteristics of environmental protection and high safety; finished antibacterial PET/PTT hollow fiber fabrics have the characteristics of plump as well as soft hand feeling, bright as well as beautiful colors, rich variation and obviously superior performance to common terylene.

Description

A kind of antibacterial PET/PTT doughnut

[technical field]

The utility model relates to the antibacterial functions fiber art, specifically, is a kind of antibacterial PET/PTT doughnut.

[background technology]

Along with improving constantly of living standards of the people, people are not only attractive in appearance, endurable to the requirement of dress ornament, but more and more pay attention to comfortableness.Heteromorphosis and functionalization are the focuses of current chemical fibre development.The clothes that the various fibres in differentiation that continued to bring out are in recent years made more and more are subjected to consumer's favor.And the exploitation of antibacterial PET/PTT doughnut has been complied with above-mentioned trend just and has been launched.

Because the macromolecular conformation of PTT and the lattice conformation of polymer chain, the elongation at break of fiber is greater than all fibres except that spandex.The percentage elongation of PTT is moderate, and its suitable elastic performance is suitable for the requirement of people to elastic fabric.The elastic recovery of PTT is better than PBT, more is better than PET.Compare with the outstanding rigidity of polyster fibre and goods, the feel of ptt fiber and fabric can be given the soft and comfortable sensation that approaches nylon.Add the good drapability and the suitable elasticity of fabric, for the fashion designer provides design inspiration and more wide space of thinking.The synthetic fiber disperse dyeing only just can be dyed dark color more than vitrification point.The vitrification point of PET is about 70～80 ℃, and owing to its degree of crystallinity height, compact structure, dye molecule are difficult for entering fibrous inside.So PET only when pressurizeing or having carrier, temperature to be about 130 ℃, could dye dark color with DISPERSE DYES.And the glass transition temperature of PTT is lower than PET about 46 ℃～65 ℃, so its dyeability is better than PET, can be under DNAcarrier free situation, and boiling dyeing at normal pressure.Simultaneously, under identical dyeing temperature, the length of penetration of dyestuff in PTT is apparently higher than PET, and color and luster is even, the fastness height.So not only can the fuel savings and the energy, can also reduce the content of chemical substance in the sewage simultaneously, the pollution on the environment degree reduces relatively, has tangible economic benefit and environmental benefit.Because these advantages make ptt fiber have bigger development and application prospect than PET fiber.By adjusting suitable spinning process condition and process for cooling condition, make the far infrared haydite PET/PTT doughnut product that meets specification requirement.

[utility model content]

Technical problem to be solved in the utility model provides a kind of antibacterial PET/PTT doughnut, add the basic zirconium phosphate carrying silver antimicrobials, to overcome the poor heat resistance of traditional antiseptic, volatile, easily resolve into harmful substance, shortcomings such as security is relatively poor are come the antibacterial effect of fortifying fibre, with the actual needs that satisfies life and produce.

For realizing above purpose, the technical solution adopted in the utility model is:

A kind of antibacterial PET/PTT doughnut, this fiber adopts the basic zirconium phosphate carrying silver antimicrobials, PET and PTT section, blend after the hollow spinneret melt spinning make, the mass percent of material component is: the mass fraction of basic zirconium phosphate carrying silver antimicrobials is 4%, the mass fraction of PET is 48%, and the mass fraction of PTT is 48%; Spinnerets is the hollow spray filament plate;

Described fiber cross section is a hollow shape;

The ratio of the interior external diameter of described fiber is 1: 4;

Described fiber Denier was 1～3 dawn;

Described basic zirconium phosphate carrying silver antimicrobials, the basic zirconium phosphate carrying silver antimicrobials is to be that multiple metal ions such as carrier, silver-colored zinc are the mineral-type antiseptic that antibiotic ion and multiple auxiliary agent are made with the bedded zirconium phosphate, have safe and better good heat resistance, chemical stability is good; Its product property: form: this product is a white powder, whiteness＞90; Average grain diameter: 2～3 μ m; Specific area:＞25sqm/g; Particle proportion: 3.0g/cucm; Heat resistance: 1300 ℃; Bacteriostasis rate: to bacteriostasis rates such as Escherichia coli, staphylococcus aureus, Candida albicanss is more than 99%.

The good effect of a kind of antibacterial PET of the utility model/PTT doughnut is:

(1) composite PET, the fiber that PTT and antiseptic blend melt spinning form has good wearing comfort energy and Color;

(2) the maximum characteristics of hollow shape fiber are that density is little, and warmth retention property is strong; And the characteristics of antiseptic are the feature of environmental protection and security;

(3) antibacterial PET of final products/PTT doughnut fabric, the good hand feeling softness, bright in luster beautiful, be full of variety, the performance of fabric obviously is better than ordinary polyester.

[description of drawings]

Fig. 1 cross-sectional structure schematic diagram of the present utility model.

[specific embodiment]

Below in conjunction with accompanying drawing the utility model is described further.

Embodiment 1

The mass percent of material component is: the mass fraction of basic zirconium phosphate carrying silver antimicrobials is 4%, and the mass fraction of PET is 48%, and the mass fraction of PTT is 48%; The ratio of the interior external diameter of hollow shape spinnerets is 1: 4.

Should adopt the spray silk spinnerets of particular design to make by middle antibacterial PET/PTT hollow fiber by high-speed spinning process.Its process route is: POY-DTY.Spinning speed 2000-3600m/min, fiber produces certain degree of orientation under high-speed winding speed, and the precursor structure is more stable, DTY process velocity 400--700m/min.Be characterized in that technological process is short, the production efficiency height.But the POY long-term storage, long-distance transport, DTY is best in quality, and POY-DTY technology has become the process route that extensively adopt present countries in the world.

Spinning antibacterial PET/PTT doughnut technological design mainly should be considered spinning temperature, drying process and cooling condition.Because the adding of antiseptic makes in the big molecule of fiber and contains inorganic molecules, influences gravitation between high-polymer molecular, thereby influences macromolecular regularity, for the stable state spinning, can suitably reduce spinning temperature.PET, moisture removal in PTT and the antiseptic hybrid slicing also can be avoided in spinning process water entrainment steam in monofilament, produce " cavity filament " and cause lousiness, waft silk or broken end, the irregular phenomenon of stock-dye that also can avoid the difference because of moisture to cause simultaneously.Because the discharge-amount of POY is big, liberated heat is also many, so need the humidity of the wind speed of cooling quench and wind higher, wind-warm syndrome is lower.

Certainly, we need be according to the manufacturing condition of reality, and when going wrong, we will in time adjust every technological parameter, to reach best properties of product.

Antibacterial PET/PTT doughnut with preparation is an example, utilizes the hollow shape spinnerets of self design.Corresponding to present fiber production apparatus, and provide for Yizheng Fiber Optical plant for PET, for the PTT raw material, the PTT raw material of having selected Du Pont to produce, specific targets are as follows:

Drying equipment: the continuous BM formula of ebullated bed drying machine;

Spinning speed: 3200m/min;

DTY process velocity: 550m/min;

Technological process: PET, PTT and antiseptic hybrid slicing → screening → boiled bed drying → hopper → screw extruder → melt pipe arrangement → spinning manifold → spinneret assembly → lateral blowing cool off → oil → 8 hours → deformation processing → DTY of (POY) → POY balance of reeling;

Component assembling: aluminium packing ring+spinnerets+9 layer net+distribution plate+5 layers of net+sand 80 grams+20 orders sea, 60 orders sea sand 60 gram+individual layer net+flat-rammer+nut;

The condition of cooling quench is: wind speed: 0.45m/s; Wind-warm syndrome: 26 ℃;

Finally spin 1 ton of qualified antibacterial PET/PTT doughnut, the dawn number of fiber was 2 dawn.

The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model design; can also make some improvements and modifications, these improvements and modifications also should be considered as in the protection domain of the present utility model.

Claims (3)

1. antibacterial PET/PTT doughnut is characterized in that, described fiber cross section is a hollow shape; PTT is meant polytrimethylene terephthalate, and PET is meant polyethylene terephthalate.

2. a kind of antibacterial PET according to claim 1/PTT doughnut is characterized in that the ratio of the interior external diameter of described fiber is 1: 4.

3. a kind of antibacterial PET according to claim 1/PTT doughnut is characterized in that described fiber Denier was 1～3 dawn.

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