TWI237671B - Dyeing and finishing of lyocell fabrics - Google Patents

Abstract

A process for producing a dyed and finished lyocell fabric having a clean, soft-touch finish by carrying out the steps of dyeing, washing and drying a lyocell fabric using vigorous action such as by jet dyeing or rotary tumbling on the fabric in at least one of the steps so as to produce fibrillation on the surface of the fabric, is characterised in that, before the dyeing step is carried out, the fabric is evenly impregnated with an aqueous solution of an acid or acid donor and is then heat treated in a gaseous atmosphere to activate the action of the acid or acid donor. The dyed and finished fabric has a clean, soft-touch finish substantially free from visible crease marks normally produced on lyocell fabrics which have been subjected to vigorous action in dyeing and/or finishing.

Description

1237671 A7 V. Description of the invention (,) Method The present invention is a material for dyeing and finishing of solvent-drawn fabrics. == Structure: ~ (Solution_cloth fiber hibiscus: A small part contains or is drawn by solvent. It can be composed of solvent-drawn fiber or solvent-drawn fiber. It is composed of a mixture of cotton, cotton, polyester, and polyester. In addition, the cloth can be drawn without solvent-drawn fibers, for example, the aforementioned ~ other fiber-drawn yarns or mixed yarns. The agent-drawing fiber is made by mixing a cellulose-organic solvent and water δ solution through a drawing-spinning head to extrude a coagulation tank. This method is called a solvent-drawn drawing card. Such a method is described in U.S. Patent No. U46,22 !, and the solvent used is a mono-tertiary amine ν-oxide, especially an N-methyloxazepine N-oxide solvent. The difference between solvent drawn fiber and other man-made cellulose fibers is that other man-made fibers put cellulose into a water-soluble chemical derivative, and then extrude the aqueous solution of the amidine chemical derivative into a liquid tank, which will This extrudate regenerates cellulose fibers. Mucus fibers, including high-strength mucus fibers, are produced in this way. This paper size applies the Chinese National Standard (CNS) A4 specification (2 丨 0 × 297 mm) '4. Page printing department Central Standards Bureau printed by the consumer agency Everyone knows that the solvent-drawn fiber is dyed with strong dyeing, plus a kerchief, and a head _, Is in | There are many ways for operators. / ,. In order to solve a problem, the milder processing of the solvent requires the use of a butterfly fabric with # open, cloth, wood color and finishing, Vigo dyed cloth for resin surface: lining: = use; cross-linking The noodles are fluffed during the subsequent washing process. Wait for the fibers to avoid the end of the dimension. These long fibers are formed by two relatively long protruding fibers (that is, _ :::: hair; ^ will be on the cloth surface. Therefore, it will have a detrimental effect, and it is usually flat fiber optics, η ,, and ί. In the other aspect, if treated in the hair, then wind: the shorter hair fibers (_ stomach, 'secondary hair fibers "Inspired by the heart. Some shorter hair fibers create a kind of surface, which has a net characteristic of%. This is because it has almost no fluff effect. It has short hair fibers on the surface. Soft touch, so it ’s stored to make the soft touch surface. ”When the shorter hair fibers are full of insects, and then _ the material table is more complex, the one-touch surface is called "'Peach peel touch surface.' 671 671 A7 B7 Description of the invention (J) Fans, there are metal salts in the WO-A-95 / 30043 patent, its rhyme uses-acid hall (for example,-cross Aqueous solution (such as ~ acid) in aqueous solution, co-authored by E—the primary wool_Nf methyl resin formed during the ideal period), removed in the traditional cross-linking place during the dyeing process —_ # w〇 ^ The heating depends on the conditions. Zhongxi ~ ^ 97/30204 patent, in this patent (preparation of fabrics using an oxidizing agent aqueous solution before dyeing P. Another acid_peroxy Dip) is performed under rising conditions, another example is in the British patent PR Δ = solvent drawing spinning-strong side (_, sulfate wood) color machine ': Xin = processing 30 minutes to 120 minutes, and then feed water = Then the financial device is pure. This is uncontrollable to produce consistent results, and these two =-species are brought into the full-scale commercial operation. No-there are-successfully used in commercial operation processing The post-treatment of the fabric is processed by the type 43 fiber. The outstanding I and 隹 attrition produced in the first-grade wool fibrillation are processed by the cellulose fermentation. The cloth is removed. The pleasant second-level post is formed, for example, in the dyeing process itself ^ printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs, printed 1237671 V. Description of the invention (bucket) A =) or later Lai Lin and drying Step, using a rotary drum machine to produce on the surface of the cloth-soft and soft The surface of the fiber is recorded in the _ woolen towel produced on the long and end of the surface of the cloth is successful, but the material cost and processing time are 'very expensive. In addition, cellulose Enzyme removal widely causes _water_spraying color processing to produce scorch, and the repetitive marks are usually not very successful. In these jet dyeing machine cloths, the liquid and mechanical movements in the rope form are severe. Significant counties are generated at the polylines, and these polylines themselves are visible continuation marks in the rhyme cloth, sometimes called 'rope marks = colored materials are visible__YES_Industry price is common _,' == = Practice

The solution is produced by dyeing-dyed and fibrous finishing, the method ": method, when the cloth has a clean, soft and dry touch, in this =;: ,, and to the first step Use violently -------- ^ _ W ^ II (Please read the precautions on the back before filling this page)

, 1T ice scale suitable for ml ml fnv 210X297 mm) ~ 7, 1237671 Λ7 V. Description of the invention (left) One ~ = 'Causes fibrillation on the surface of the fabric; its characteristic is = = before the step' the fabric After dissolving the acid or acid with the water of the acid or the acid donor, the acid or the acid is then heat-treated in an air flow environment to activate the reaction of the cloth. With this, the dyed and finished marks, 2 clean, soft-touch surfaces, almost completely invisible _ and finishing is applied to the cloth during dyeing and / or washing and / or drying processes mainly for the purpose of The special processing functions required require dyeing in the 'jet dyeing' or in the 'money-drum type = yang dyeing, or in a rotary drum type machine (for example, a washing machine or a tumble dryer) ) When washing or drying, = vigorous action. This drastic action will also cause hair fibrillation in the solvent-drawn fabric. If it were not controlled by the method of the present invention, the surface of the material will cause a hair-like effect, and there may be the possibility of forming the aforementioned visible crease marks . The method of the present invention _ produces a dyed lyocell fabric which has a drastic Darth processing step, for example, ㈣ dyeing or rotating roll = after processing, it has a clean, soft-touch surface, especially peach touch. On the surface, there are no visible continuation marks, and this ability is of great commercial importance. This means that the fabric can be used in existing equipment with normal processing steps without the need for additional operational attention or 1237671 printed by the Central Consumers Bureau of the Ministry of Economic Affairs' Consumer Cooperatives. Β7 V. Description of the invention (() a. Is more More time can be added: ^ lift side ^ use-jet dyeing machine-a dyeing health _ period is six financial hours or less than six hours. Suitable traditional water _ _ shooting dyeing rhyme including ThiesE_ft and Hisaka Circular CUT -SL and other machines. Air jet dyeing machines can also be used. 'These machines can also exert vigorous action on the fabric. Suitable air jet dyeing machines include Thies Ai—Thies Luft

Roto ^ Hisaka AJ-1 ^ Krantz Aerodye U A Then AFS f 1 device. Residual dyes and dyestuffs used in cellulosic cloths can be used in this month's method. The towels include dyes based on direct dyes, vat dyes, sulfur dyes, and reactive dyes. In addition to being able to be applied to the entire flat knitted or knitted solvent woven fabric ’, this method can also be used for lumps made of woven fabric: dyeing and finishing. This type of clothing may have a visible crepe j 'foot due to the surface m plus j: Gu (compared to money, roller dyeing or centimeter waste barrel or drum drying) caused by local friction, but if this type of agricultural economy The Benjamin method and the king can greatly avoid this new button. After the solution of the donor with acid 4 acid is dried and heated, the fabric can be cut into pieces and made into garments. However, it can also be cut into pieces or made into garments. Then read about blocks or garments. (Please read the notes on the back before filling out this page) 、 1Τ

1237671 A7 V. Description of the invention (7) The avoidance of visible traces is the main benefit brought by Linfang ’s bribes today. However, we also found that on solvent-drawn fabrics of finished products, the surface is cleaned by soft f I was protected by Satoshi from subsequent damages. In particular, with this dyed: printed product, Biwan said that garments or other pieces can still maintain their clean, soft surface after washing the water. The acid or solution is best. It is an aqueous solution. The cloth can be used to transfer the liquid to the cloth, for example, the solution can be submerged in a subtle manner. The whole piece of cloth can be opened in a wide range of water-liquid return mode-flapping the bath's dip-knitting surface with 65% 80% of the weight of the cloth. The water-reduced block finished product 'tb can be said that the garments can be immersed in the aqueous solution in a container-a drum-type washing machine). p-head acid or acid donor is best-weak acids used in textile finishing processing as = lipid: vehicle type. Suitable acids or acid donors include: acid = say, clavulanic acid as well as tartaric acid and Lewis acid. Chlorine di = :, zinc chloride, zinc fluoborate and zinc nitrate are suitable = _. In addition, two or two synonymous compounds of these ingredients can also be used. In fact, Long Tables sometimes use mixtures in their catalyst formulations = ΓΐΐΓ In the method of the present invention, the child is ― Heartland (Registered trademark of BASF), _ a kind of acid paper size applicable to China ~ ---—— •, pole (〇 «) 8 4 specifications (210 '/ 297 mm) 面 济 部 中心 # 准Bureau staff ^ cooperated to print 237671 media J has a mixture of magnesium chloride and zinc fluoborate. The acid concentration of the acid 7 == maximum Γ depends on the specific solution used. Needless to say, use a high activity and low concentration to avoid it. "For the city": acid damage, the use of lower active raw materials should be higher concentration, the second manufacturer will be recommended for resin surface treatment. According to the word, the concentration of the vehicle can be reduced. The method can be used to dissolve and shoot in water at about 0 grams per liter. For example, if citric acid is used, it is about grams per gram. Lower activity acids or acid donors can be involved or shared. For example, it can reach about 40 per liter in aqueous solution. This is controlled. 2. High concentration should be avoided in all occasions. , Because C caused unfavorable acid damage to the cloth. In addition, avoid the excessive degree of;, can also be used if iif heterogeneous chemical ^. The impregnated cloth is heat-treated in an air-flow environment (for example, in an oven;). Air constitutes this preferred airflow environment. Said extension. Before the heat treatment, drying is performed in a drying step, but :: drying is only the initial step of the heat treatment step. The solvent-drawn fabric = is processed in a closed manner, for example, through a mouth heating oven or heating chamber on the machine. The temperature of the airflow environment used in the heat treatment = the ideal choice depends on the effective role of the acid or acid, the activity of the body. The heat treatment acts on activating the gas phase to interact with the melting dimension. Normally, the proper temperature is at ·. c to 22〇 standard (CNS) A4 specifications (210X297 mm)

1237671

Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs, 1237671 A7 V. Description of Invention (/ U) Remove the remaining caustic soda. After being washed to remove all undyed dyes, the dyed fabric may be subjected to a conventional finishing process, including, for example, a soft finishing agent by a conventional padding operation. This can be done after dyeing and washing without any drying of the fabric in the middle. If there is a need for a wet roller treatment to make a soft-touch surface, this can be done in a rotary drum machine after dyeing, can be done with any soft surface treatment or afterwards. As with the dyeing step, the treated solvent-drawn fabric remains completely free of visible crepe loss, which would occur during wet drum operations without softening. The treated fabric may be finally dried, for example, in a tumble dryer. So far, in a certain sense, the present invention provides a method for dyeing and finishing a plain knitted solvent-drawn fabric (which has been desizing). The method includes the following steps in the following order: 1) borrow Use an aqueous desizing bath to remove the slurry of the cloth; 2) pad the cloth with an acid or an aqueous solution of an acid donor; 3) dry and heat treat the cloth, for example, at 120 ° C To 220 ° C, preferably 140 ° C to 200 ° C; 4) dye the cloth; and 5) tumble dry the cloth. The invention is illustrated by the following examples. In all embodiments, this paper size applies the Chinese National Standard (CNS) A4 specification (210 × 297 mm) ~ f today, (Please read the precautions on the back before filling this page)

1T 1237671 A7 V. Description of the invention (I 丨

Tencel Example 1 Twill weave structure woven into a single gsm (grams per square meter) plain weave fabric = Zhongli 200 = open: _ detergent and sodium carbonate aqueous cleaning: =

Deletion-Tentering machine The desizing cloth is re-classified on M to be heat-treated with air at a temperature of 5 =: It was performed in a two-thousand Thles E_ft nozzle dyeing machine. Except this paper size ㈣ —From '(Please read the notes on the back before filling this page)

, 1T • I-I —1--i ill — 1237671 Five A7 invention description (required) P = nNovyH lone navy blue dye, from the weight of the cloth to four hundred (Procicm is a registered trademark of Dystar AG) sodium sulfate 60g / l Soda ash 20g / l The dyed fabric is then ㈣—soft finishing heart ㈣ E (Edumne is a registered trademark of Umqema company) treatment, from 2% of the weight of the fabric, from one,… The temperature is applied, and then the cloth is transferred in a cloth rope. ^ The dyed comparison sample cloth has a flat surface appearance with a work surface «, which is due to the characteristics of @ 她 毛 编 ^ 许, and The 布料 -shaped cloth processed by the friction of the jet dyeing machine causes visible appearance and appearance. This is a significant counterpoint to this. The cloth treated by this bribery method has a material, clean surface appearance, exhibits a material that is dyed, and forms a soft tactile surface with surface characteristics like the touch of peach skin. And almost no visible creases. By Example 2 I Repeat the procedure of Example 1 'The treated and compared samples are all | 〶 Use the same cloth, but the citric acid used in the impregnation step is replaced by | c〇NDENSOLFB, and the degree of inertia is 2G Grams, this is — | a mixture of magnesium chloride and zinc fluoride, selling f as a textile

--------- β ^ — — (Please read the notes on the back before filling in this page) Zero -1 = 1 π -fci-A ^ 767l A7 B7 (CONDENSOLFB is the fifth invention of BASF in Germany. Note (e) Registered trademark of Acid Catalyst Division of Surface Treatment). The appearance of the flat light has a sensational surface, and the surface is dry. On the contrary, the net :: fabric has attractive peach peel and no visible creases. iMMj processed width. The-part of the cloth is kept as -body-immersed in two =, so that ^^ magnesium hexahydrogen compound and 12 grams of chlorine per liter impregnated cloth is put on the stenter. The child is dry, and then shouts in the air: the temperature of the treated fabric in the air and the heat treatment of the ratio :: 45 seconds. Desizing, dyeing, softening, and then the fabric is individually subjected to the following two ==: washing, _in: square 'but the amount is from 100% of the weight of the fabric = dye solution, invention description (outside) the dyed fabric After _softening treatment, Sand0perm_ (= 'is a registered trademark of aariant company), using the weight of Kezhong-%, the external health management, demon_2 — water-based bath, perform at 4G ° C temperature __.细 eaianiAir_ Tree inspection machine made 1 warp ㈣_ 林 财 轩 光 _

=: Prominent long-haired fibers with fibrillation characteristics. The classics follow J = clean appearance, completely hairless effect, and completely two

See the marks. Wu U μμμλ = agent-drawn fabric, weaving a fabric with a basis weight ^ with a 2X1 # weave structure with a percentage of silk ’. The fabric was used in an open-width manner—containing an aqueous solution of _carbonic acid_, and dried on a Yao-shaped round-shaped heating cylinder at hxtc. ',,, fun in the round Jiefen = desizing and drying the cloth and then beat with In-two-liquid' solution concentration of 18 grams per liter, 8 percent sexuality Condensol Μ is the registrar of BASF, Germany From a solution of thirty-two percent magnesium chloride. The _ & = material is warmed to dryness by 1 and then on the pull-pull with 1 thief 1237671 A7 B7 5. Description of the invention (& degree heat treatment for 45 seconds. The treated fabric is then cut into There are shaped pieces, and this piece is stitched to-to make shirts. These shirts are made in-open-bag Tupesa E_e 25 touch-stained money towel _ swimming dyeing method dyed 'with the next dye formula' and finally dyed The temperature is _: PiOcionH-EXL from the weight of the cloth is 40% sodium disulfate 40g / l sodium carbonate 15g / l These dyed shirts are washed with water and then treated with a softener 'using Edimine CSA, from the cloth Two percent of the weight hides from a water-based bath at peach temperature. __ 再 经 __ '. The dyed and noodles of this scholar have attractive peach skin touch surface, no visible crepe marks, And long hair fibers. Example 5 (Please read the notes on the back before filling out this page), ιτ The printing of solvent-coated plain woven fabrics as described in Example 4 by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs Way back to Wei and dry, and then batch by batch, ― batch called the sample,-batch Siyi The hair is processed at the same time. The latter is immersed in Condensol M solution, and then dried and heat-treated as in Example 4. Therefore, the processed impurities and series #forest material each stomach-cold_technology use RemaZGi ethylene? Reactive dyes (^ 2 paper sizes apply to China 210X297, Jt

I i ......... I- -I 1237671 A7 ______B7 V. Description of Invention (4) is a registered trademark of Dystar Company) Dyeing. The dyeing bath is: Remazol Bright Yellow GL 10g / l Remazol Red RB 20 g / 1 Remazol Navy Blue GG 40g / l Sodium Silicate (38Be) 130 g / 1 Caustic Sodium (38 Be) 38.5 g / 1 Leonil SRP (Staining agent) 3.0 g / 1 The dyeing solution was applied at 70% of the degree by padding. The employee cooperative of the Central Standards Bureau of the Ministry of Economic Affairs printed the dyed cloth in the county where the dyeing solution was applied. Roll meals in vinyl film for eight hours. In the same way, after washing and drying in clean water, the two fabrics have been found that the surface of Guangxian County jl | JL is almost completely hairless. It is a careful, non-friction wet processing. Then the first two pieces of fabric are cut into pieces, and two sets of samples are sewn into two sets of shirts, one is made with treated fabric, and the other is made with a comparison sample fabric. The two sets of shirts were washed and softened for 40 minutes at 60 ° C using EdunineCSA in a Tupesa Eeodye 25 open-bag ten-type washing machine. The shirts sewn on the sample fabrics had a flat and smooth appearance. , Hair-like surface, and visible _ marks, and the surface made of treated cloth _ has a clean, uniform peach skin touch surface. '1 ------------ CPlease (Please read the notes on the back before filling this page)-, _π This paper size is applicable to China National Standard (CNS) A4 (210X297 mm) Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 1237671 V. Invention Description (η £ Μίίβ-Solvent paper-spun fabric, a fabric with a weight ratio of ^^ to draw the fiber ^^ of the fiber and cotton fiber. The cloth ^ ^ woven silk constitutes a base detergent and an aqueous solution of caustic soda in: Oxygen: Chlorine, Caustic Soda and Peroxide Stabilizer: in: = :, = steam for 8 minutes depending on the temperature, _ clear: 凊 冼 and then dried in a drum dryer. The cloth is then cut into lengths Duan Duan is used in accordance with the original meaning of the method The aqueous solution of the material was drawn and rolled at 80 ° C, dried at 119 ° Cia, and then treated for 3 minutes on a drawing machine. The comparison sample and the treated fabric were dyed and finished by the following method: dyeing ^ It was carried out in -Thies LUft-R0t0 < t-ray dyeing machine, using the formula and steps of dyes as described in #_ 1_, followed by washing with water, in the same manner as described in Example 1. Soft and dry in a Thies Rototumbler roller. The comparison sample has a flat, hair-like surface, which is uncomfortable from a commercial standpoint. The treated fabric has an attractive peach skin touch surface, completely There are no visible total marks, and there is a clean, uniform test ------- C Jingxian read the note on the back of the grave-T)

1237671 V. Description of Invention (β Appearance.

Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs MM & 1 == 余 __ 六六 化 物 == 6 Chinese Institute of Lion Step difficult to test ^ :: surface magnesium chloride hexahydride: = and two Hr-part of the reservation A part of the aqueous solution of caustic soda which was first treated in the dyeing place according to τ-chainless mercerizing solution == ten percent-caustic soda ^ For samples, acid-treated and acid-treated Lin Yaoguan step mottled and finishing. The dyeing is carried out in a jet dyeing machine, using the formula and steps of the sample dyeing bath solution in Example 1, followed by rinsing with water, using :, oil 2707 (according to the weight of the cloth :::: 'and in- Rolling and drying in one-two rigorous eyes machine. Bamboo observes the age of two kinds of miscellaneous materials. Compared with the hard cloth, it has a flat surface on the surface and has many continuation marks. The place is frozen. Appropriate size) A4 specification-(Please read the precautions on the back before filling out this page} 、 11 _ · _ I-m —I— II 11 · 1237671 A7 V. Description of invention (Acridine) and attractive and clean The peach skin touch finishing. Its color is slightly paler than that of the sample cloth. The finished and causticized cloth has the same clean, peach skin touch finishing, which is completely invisible Compared with the un-causticized fabric and the comparison sample fabric, it has a better dyeing effect. (Please read the precautions on the back before filling this page)

、 1T Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs This paper size applies to China National Standard (CNS) A4 (210X297 mm)

Claims (1)

Scope of patent application _17. According to the scope of patent application, the method is any one of 3 of the solvent woven fabric y, especially in the subsequent heat treatment step; acid or acid donor impregnation and treatment. After but before the dyeing step, the method of causticizing is in the range of any of the items ΐ1, 2 or 3, and the specially soft-spun fabric is subjected to water-removing before the final drying. 32; = or an aqueous solution of an acid donor is dipped into the cloth.) Drying and heat-treating the cloth; and 4) dyeing the cloth; and 5) rolling and drying the cloth; Dyeing solvent drawn fabric with peach skin feel 20. According to the method of the scope of the patent application No. 19 before the cloth is removed, the cloth is scorched ^ in the slurry from 21. According to the scope of the patent application 19 or 20 //, 'Between the dismissal step and the acid leaching step # "万 法' It also includes a step of bleaching. The material is the same as the 22. According to the scope of the patent application β Or the method of item%, which further includes ^ 376 ?! Λ8 6. Applying for the acid padding step (2) + a ^ ~ '— The cloth is condensed in addition to dyeing. 23 · According to The method of applying for a patent on page 9 or 2 after the dyeing step (4), which further includes The step on the cloth will be dipped in softener before the surface is dry. 24. According to the _19 item of the cap, the dyeing step is based on the method, in this method 25. Root__Scope item 19 green = Performed in a jet machine. Here, the drying and heat treatment steps (3) are performed at a temperature between the methods.-1 °° C to 200 ° C 26 · According to the 25th scope of the patent application scope, The heat treatment step is not carried out under the pull of the child's method. It should be printed by the employee consumer cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. Μ _ H clothing 1237671 Application date V, Li "Case No. Qlii category (the above are filled by the Bureau) I. Patent specification Chinese solvent dyed fabric dyeing and finishing method Invention name English name Nationality Inventor creator 1 、 Residence 1James Taylor 2Jofrey Collins1British nationality 2British nationality1British section DE73 1XH 42 Linacris Avenue, Cranston City 2British section DE3 5QZ Bunkelover City Binding No. 7 Avenue (Name) Ministry of Economy Wisdom ^ g Industrial and Consumer Cooperation Du Printing Country III. Applicant's Residence and Residence (Office) Representative Name British Merchants Dunsell (UK) Duanbei DE21 1BP The paper size of Smith Line, 1 Hermi Street, Sparton, is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) Τ ^ 1 · Lost season 种-a kind of fabric used to produce a revenge. The fabric is costly. 1 ^ Management _ method of mixed spun surface, when drawing fabrics dyed =, ㈣ finishing 'The method is to produce wool fibrosis on the solvent, the teacher then on] = ㈣ work, resulting in the surface of the fabric; its characteristics are In the dyeing step c, washing and drying of the aqueous solution of the acid donor is performed by acid or medium heat treatment to at least the drying step: the reaction of the acid donor, the aforementioned washing; , The dyed, surface-surface, soft-touch younger brother and 1 cloth reluctant Bu Ke has clean traces. The 2 + ===: Erfa method produced by the dyeing action is characterized in that the agent is drawn by spinning 3. According to Shen Er = ㈣ dyeing machine. The spinning fabric is a method of one item that has been made into a shirt. It is characterized in that the solvent pulls the drum product (such as clothing) in one rotation. 4. = The method of applying for the third item in the patent scope, which is, 2 Or any of the 3 items—the method, its special work, Riga, This paper is applicable to the standard ----- 榡 榡 (0 milk) 8 4 specifications (21〇 \ 297 sound) sour ------ ---- / ύ \ 'The scope of the patent application for gas is 40 g. 7. According to the scope of the patent application, No. 2 or 3; The acid is supplied to the system with magnesium chloride. According to the characteristics of Cap Patent No. 丨, 2 or 31, the acid is an organic acid. 〃 spoon method, its special 9. The concentration used in the method according to item 8 of the cap patent range is in the aqueous solution, the organic H). According to the method in the patent application range item 8, method 2, to ^, g . Department of citric acid. In its special county, the concentration of the method of item U of the organic Uj__ range is 4 to 6 per liter in the aqueous solution. The special test is that the acid is' according to the " or 3 of the scope of patent application: ―: Levy is The impregnated cloth was heat-treated at J Wanfa, a temperature of 22 generations. The temperature in the environment is from 12Λ to 13. The temperature according to item 12 of the patent application is between the brewing and the brewing. It is characterized by that: the scope of the patent application or item 3 15 ^, the airflow system air used for heat treatment. According to any of the items in the scope of patent application 1, 2, or 3 — the method is that the solvent-drawn fabric is a plain weave item. For this reason, the solvent-drawn fabric is subjected to warfare-retirement operations. Please read the memorandum items on the back of the work or the acid donor, and then install the page. [Printed by the Central Standard Bureau of the Ministry of Economic Affairs of the Ministry of Economic Affairs.