Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
  • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
  • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
  • D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
  • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
  • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
  • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
  • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
  • D06M15/41—Phenol-aldehyde or phenol-ketone resins
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
  • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
  • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
  • D06M15/423—Amino-aldehyde resins

Definitions

• This invention relates to improvements in the treatment of textile materials whether cellulosic or non-cellulosic, fibres, yarns, or fabrics, such for example, as those of linen, cotton or regenerated cellulose.
• such materials are subjected to a swelling, or swelling and shrinking, process or to a plurality of such processes, consecutive or not, after they have been impregnated with an insolubilisable substance which has then been insolubilised in the material; such impregnation may, for example, be effected by the use of a soluble body of suitably small molecular weight, whose solution has a low viscosity, or a mixture of bodies, which body or mixture is then converted to a solid product in the textile material. Solutions of resin components or of liquid or solid intermediate condensation products may be initially used.
• the object of the treatment according to the invention is to improve the tensile strength and ripping strength and durability and/or other textile properties.
• the invention further consists in treating such materials, containing an insoluble resin, with a soap or other suitable washing solution, so that the fabrics will wet out readily.
• treating the materials with a. swelling and shrinking agent after which they may either be washed and dried and subjected to textile finishing processes, or they may be impregnated with further quantities of synthetic resin forming components which are afterwards insolubilised and if desired, again subject'ed to the swelling process.
• a linen fabric (dyed or otherwise) may be impregnated by one of the methods described in U. S. Patent No. 1,734.516 with synthetic resin forming components which are subsequently insolubilised.
• the treated material is now thoroughly washed oiT so as to obtain a good subsequent swelling action and is then treated with a swelling agent such as caustic soda of mercerising strength, preferably allowing shrinkage to take place in both length and width.
• a swelling agent such as caustic soda of mercerising strength
• the invention may be carried out on resin impregnated materials having crease-resisting properties for improving their textile properties or it now becomes possible to give further treatment to materials which have already received a resin impregnation treatment so that it is possible to incorporate further quantities of resin in the fabric.
• the invention is, however, not limited to the improvement of materials possessing crease-resisting properties since it is applicable to the treatment of any yarn or fabric which contains a synthetic resin whether it possesses crease-resisting properties or not. Thus, we may treat a material containing a quantity of resin too small to produce a crease-resisting effect.
• the fabr'c Before treatment with the swelling agent, it is desirable to subject the fabr'c to a preparatory treatment. Some effect can be obtained by spraying the fabric with water and allowing it to stand for some hours before treatment with the swelling agent but we prefer to treat the fabric by washing it with an alkaline solution which preferably contains a wetting agent.
• someswelling agents such as caustic soda may be increased-by warming the solution, e. g., to 40 C.
• the impregnating agent is a urea formaldehyde resin, but other insolubilisable impregnating agents can be used.
• the particular swelling agent in this example is caustic soda, but other swelling agents can be used, for example, caustic potash or caustic soda in conjunction with carbon bisulphide.
• the preliminary wash is at 80 C. for two to three minutes but other temperatures and times may be used.
• The'swelling agent must be capable of producing a marked swelling action on the composite material (fabric plus resin) and the action must be substantially greater than that exerted by water alone when applied in the usual manner.
• the order of magnitude of the swelling power should be similar to that exerted by the usual swelling agents such as caustic alkali.
• the swelling may be produced by mixtures of compatible swelling agents or these agents in alternation with or without intermediate washing or by the application of incompatible swelling agents in alternation (e. g., acid-alkali) with or without intermediate washing.
• incompatible swelling agents in alternation e. g., acid-alkali
• the swelling may also be produced in known ways by a combination of agents which singly do not produce swelling but which jointly simultaneously or in alternation produce the desired effect.
• acid swelling agents When treating a resin which is resistant to acid such as phenol formaldehyde resin, acid swelling agents may be used.
• An acid swelling agent can be used on fabrics containing a urea formaldehyde resin but in general, the swelling agent should no exert too great a solvent action on the resin in its condensed form.
• the swelling may be performed at room temperature, or at lower or higher temperatures if desired.
• Example 1 50 parts by weight of urea are dissolved in 100 parts by weight of (neutralised) 40% formaldehyde solution. This solution is boiled under a reflux condenser with 3% of aqueous ammonia (sp. gr. .880) calculated on the total weight of the solution for 3 minutes and then cooled rapidly. The solution is diluted with water to say 50% to 10% strength and 1% by weight (on the diluted solution) of tartaric acid is added.
• the fabric is then dried to say 38-40" wide at a temperature below 100 C. and afterwards heated to 170 C. for two to three minutes. (The process is not limited to heating at a high temperature as in some cases much lower temperatures can be used.) It is then washed for 4 minutes at C. in an aqueous solution containing as wetting agent an alkali salt of a sulphonated fatty alcohol /r% and soda ash A%.
• the fabric is then squeezed off and without drying run into a bath of caustic soda 50 to 63 Tw. without tension for three minutes or more when it shrinks both in the warp and weft. It is' then run through a mercerising machine, containing caustic soda of usual mercerising strength, with tension, quickly washed off with warm water, soured in acetic acid solution, washed off, dried and finished to 34-36".
• Example 2 A solution is prepared as in Example 1. It is diluted to 50 or 55% of its original concentration, and 0.7 gm. tartaric acid added to each c. c. of diluted reaction mixture.
• Thin mercerised cotton fabric is impregnated with this liquid, thoroughly squeezed to remove as much surplus liquor as possible, dried at a relatively low temperaturepreferably below 100 0., and is then heated for 2 to 3 minutes at C. It is then washed for a few minutes at 80 C. in an aqueous solution containing of an alkali salt of a sulphonated fatty alcohol, or other suitable wetting agent, and of soda ash.
• the fabric is then squeezed and passed through caustic soda solution of mercerising strength with or without tension, washed and finished in any suitable manner, preferably with a small shrinkage of about 1 to 2% in both warp and weft.
• Example 3 Fabric made from regenerated cellulose or from a mixture of cotton and regenerated cellulose can be treated in the same way as in Example 2, but in this case a rather larger shrinkage is an advantage, and either caustic soda or caustic potash may be used for the swelling and shrinking agent.
• Example 4 100 gm. cresol, 200 c. c. formalin (40% by volume formaldehyde solution) and 0.8 gm. caustic potash dissolved in a little water are mixed together and boiled under a reflux condenser for 5 minutes. After being quickly cooled a further 0.8 gm. caustic potash is added. An absorbent cotton fabric is impregnated with this solution, which has been previously diluted with an equal volume of water containing 4% olein (Turkey red oil). The fabric is nipped (squeezed) so as to remove as much surface liquor as possible, dried at a low temperature, preferably below 100 C., and is then heated for 2 to 3 minutes at 170 C.
• a low temperature preferably below 100 C.
• the swelling treatment improves the strength and durability and other textile properties.
• the tensile strength is also increased. Two illustrative comparisons may be given.
• losic textile material containing within the fibres an insolubilised synthetic resin which comprises subjecting the material to a swelling treatment with a mercerizing agent.
• Process of treating a cellulosic textile material containing within the fibres an insolubilised synthetic resin which comprises subjecting the' material to a swelling treatment with a mer- 15 cerizing agent and shrinking it in both the warp and the weft.
• Process of treatinga cellulosic textile fabric containing within the fibres an insolubilised synthetic resin which comprises subjecting the material to a swelling treatment by caustic alkali.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=9741615

Family Applications (1)

Country Status (5)

Cited By (11)

Families Citing this family (3)

• 0
  • NL NL42697D patent/NL42697C/xx active
  • BE BE407488D patent/BE407488A/xx unknown
• 1934
  • 1934-01-25 GB GB26179/35A patent/GB437441A/en not_active Expired
  • 1934-01-25 GB GB2553/34A patent/GB437361A/en not_active Expired
• 1935
  • 1935-01-17 US US2204A patent/US2158494A/en not_active Expired - Lifetime
  • 1935-01-22 FR FR784556D patent/FR784556A/fr not_active Expired

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