CN104695213A

CN104695213A - Pretreatment method of pineapple fiber

Info

Publication number: CN104695213A
Application number: CN201310637761.3A
Authority: CN
Inventors: 朱俊生
Original assignee: Tongling Yongsheng Mechanical and Electrical Co Ltd
Current assignee: Tongling Yongsheng Mechanical and Electrical Co Ltd
Priority date: 2013-12-04
Filing date: 2013-12-04
Publication date: 2015-06-10

Abstract

The invention discloses a pretreatment method of pineapple fiber. The pretreatment method comprises following steps: (1) adding of water, wherein water is delivered into a container filled with pineapple fiber yarn; (2) adding of accessory ingredients, wherein tea saponin powder, caustic soda, hydrogen peroxide, tea saponin dispersion liquid are added into the container successively; (3) boiling, wherein an obtained mixed solution is heated to 100 DEG C, and is boiled for 70min; (4) heat flush, wherein pineapple fiber yarn is collected, and is washed with water of 85 to 90 DEG C for 4 times; (5) cold flush, wherein pineapple fiber yarn is washed with cold water for 4 times; and (6) drying, wherein pineapple fiber yarn is dried. Beneficial effects of the pretreatment method are that: whiteness, capillary effect, and strength of pineapple fiber yarn are improved by adding tea saponin and a period of boiling.

Description

The pre-treating method of pineapple fibre fiber

Technical field

The present invention relates to the pre-treating method of pineapple fibre fiber.

Background technology

There is abundant pina fibre resource in China, and pina fibre belongs to crudefiber crop leaf fibre, mainly extracts from pineapple leaves, has natural anti-bacterial anti-foul function, and smooth moisture absorption, good permeability, be desirable functional textile material.Tea Saponin has another name called TS, and be the class Pentacyclic triterpene saponins material extracted from the tea dregs of rice after rolling experienced tea oil, be a kind of nonionic surface active agent of good performance, sterling is fine white column crystal.There is the advantage of superior performance, with low cost, alkali-free chlorine-free, energy-saving and emission-reduction, cleaner production.Although pineapple fibre and Tea Saponin have so many advantage and application prospect, but few people combine application both so far, even if there is the example of connected applications, as boiling or bank up technique, the every key index obtained is not as whiteness, intensity, capillary effect and hairiness number all reach half-finished requirement.

Summary of the invention

The technical problem to be solved in the present invention is that existing pineapple fibre fiber indices does not reach half-finished requirement, provides a kind of pre-treating method of pineapple fibre fiber for this reason.

Technical scheme of the present invention is: the pre-treating method of pineapple fibre fiber, and it comprises the following steps:

(1), water filling, add water to the container filling pineapple fibre yarn;

(2), add auxiliary agent, in container, add Tea Saponin powder, caustic soda, hydrogen peroxide and Tea Saponin dispersion liquid successively;

(3), boil and boil, above-mentioned mixed liquor is heated to 100 DEG C and boils boil 70min;

(4), heat flush, the water being 85-90 ° by pineapple fibre yarn taking-up temperature rinses 4 times;

(5), cold rinse, by pineapple fibre yarn cold water flush 4 times;

(6), dry, by pineapple fibre drying yarn.

In such scheme, in step (2), Tea Saponin powder consumption is 17-20g/l, and Tea Saponin dispersion liquid consumption is 0.55-0.88 g/l, and bath raio is 1:30.

The invention has the beneficial effects as follows through in pineapple fibre yarn, add composite tea saponin and boil boil one end time can improve pre-treatment after whiteness, the indices such as capillary effect and brute force of pineapple fibre yarn.

Detailed description of the invention

The present invention includes following steps:

(1), water filling, add water to the container filling pineapple fibre yarn;

(5), cold rinse, by pineapple fibre yarn cold water flush 4 times;

(6), dry, by pineapple fibre drying yarn.

Adding water in step (1) to make pineapple fibre yarn be completely submerged,

Embodiment 1

In step (2), Tea Saponin powder consumption is 17g/l, and Tea Saponin dispersion liquid consumption is 0.55g/l, and bath raio is 1:30, and the time of boiling of boiling in step (3) is 70min.

Embodiment 2

In step (2), Tea Saponin powder consumption is 20g/l, and Tea Saponin dispersion liquid consumption is 0.88g/l, and bath raio is 1:30, and the time of boiling of boiling in step (3) is 70min.

The index of each embodiment is as table 1:

Measurement index experiment numbers	Embodiment 1	Embodiment 2	Embodiment 3	Embodiment 4	Embodiment 5
						Whiteness	63.9	70.7	72.8	78.6	79.2
Capillary effect (cm)	8.9	11	11.1	9.8	10
						Intensity (cN)	351.2	350.18	351.04	326.68	310.5

The requirement of semi-products should be reached, i.e. about 75-79 during pre-treatment standard to pineapple fibre yarn in factory.From data in table, boil and boil in technique, sample whiteness increases along with the concentration of Tea Saponin solution and increases, until less from 20 g/l-24 g/l whiteness changes, and boiling of 20 g/l Tea Saponin solution is boiled process and also can be reached the requirement of factory to semi-products.If improve solution concentration again, disposal cost increases to some extent, and powerful to decline to some extent along with the increase of concentration, therefore think 20 g/l Tea Saponin solution boil best when boiling process.

From capillary effect data, the capillary effect of untreated pineapple fibre yarn is 7.5cm, and all more untreated pineapple fibre yarn of capillary effect of pineapple fibre yarn after process is good, and mean value is about 10.2cm, factory requires capillary effect reaches 8-9cm, and minimumly in 5 embodiments also having 8.9cm, the capillary effect of the pineapple fibre yarn therefore after process all meets the requirements.

From powerful data, known according to pure dimity technical indicator (FZ/T32002-1992), untreated pineapple fibre thread density is that the single thread fracture strength of the yarn of 34-38tex is not less than 20.5(cN/tex), the single thread fracture strength of pineapple fibre raw yarn should be not less than 20.5*40.5=830.25cN.But the single thread fracture strength of the pineapple fibre raw yarn that reality is surveyed is only 419cN, is about 50% of single thread fracture strength in pure dimity technical indicator.And through statistics, the pineapple fibre fineness of yarn after process about reduces by 18%, and the pineapple fibre fineness of yarn after process is about 40.5*(1-18%)=33.21tex.Known according to pure dimity technical indicator (TZ/T32002-1992), ramie yarn density is that the single thread fracture strength of 25-33tex is not less than 19, therefore the single thread fracture strength of pineapple fibre yarn after process should be not less than 19*33.21=630.99cN.Because the single thread fracture strength of pineapple fibre raw yarn accounts for 50% of single thread fracture strength in pure dimity technical indicator, if the pineapple fibre yarn strength then after process reaches 630.99*50%=315.5cN, as can be known from the table data except embodiment 5, other embodiment all can meet processing requirements.

From hairiness number, the hairiness number of yarn after boiling process of boiling is as shown in table 2:

Measurement index experiment numbers	1mm	2mm	3mm	4mm	5mm	6mm	7mm	8mm
									Embodiment 1	22.1	29.2	39.7	56.6	73.3	101	132.1	98.9
Embodiment 2	20.4	29	40.5	59.8	84.3	123.3	162.9	106.5
									Embodiment 3	24.6	30.9	40.6	57	78.9	118.2	153.6	102.9
Embodiment 4	19.67	24.44	35.44	54.11	74.44	101.89	133.52	95.89
									Embodiment 5	18.22	24.99	34	52	72.35	100	130.52	95.89

As shown in Table 2 pineapple fibre yarn after treatment hairiness number significantly reduce, wherein remarkable with the hairiness number of 1-6mm, and 7, the hairiness number of 8mm slightly increases.Its reason may be after Tea Saponin pre-treatment processing, and the more tiny filoplume of great majority is dissolved, and therefore hairiness number significantly reduces.Therefore 7 and the tiny filoplume of small part also can slough a part of colloid due to money process, makes sticky declines between them, becomes longer filoplume, the long hairiness number of 8mm slightly increases; On the other hand, pineapple fibre yarn is after Tea Saponin process, and the dietary fibres on pina fibre surface are dissolved, and becomes comparatively smooth, and therefore short and small filoplume easily by stretching out, makes 7,8mm hairiness number has certain increase.

Claims

1. the pre-treating method of pineapple fibre fiber, is characterized in that it comprises the following steps:

(1), water filling, add water to the container filling pineapple fibre yarn;

(5), cold rinse, by pineapple fibre yarn cold water flush 4 times;

(6), dry, by pineapple fibre drying yarn.

2. the pre-treating method of a kind of pineapple fibre fiber as claimed in claim 1, it is characterized in that in described step (2), Tea Saponin powder consumption is 17-20g/l, Tea Saponin dispersion liquid consumption is 0.55-0.88 g/l, and bath raio is 1:30.